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Part Number Package & Pins VDD Voltage (V)-min VDD Voltage (V)-max Class AB/D IDD, Supply Current (mA) TSTART-UP (μs) Output Power (W) (RL=4Ω) Output Power (W) (RL=8Ω) Output Power (mW) (RL=32Ω) Total Harmonic Distortion Plus Noise (%) Power Supply Rejection Ratio (dB) Output Noise (μV) Signal to Noise Ratio (dB) Output Offset Voltage (mV) Headphone AGC/Power Limit Mute
ALL
APA0714 MSOP-8
MSOP-8P
TDFN3x3-8
2.4 5.5 AB 3 0.065 2.1 1.3 - 0.05 80 15 105 5 No - No
APA2010/A WLCSP1.5x1.5-9A
TDFN3x3-8
DFN3x3-8
2.4 5.5 D 2 - 2.45 1.45 - 0.1 80 100 90 25 No - No
APA2010B WLCSP1.5x1.5-9A 2.4 5.5 D 2 - 2.45 1.45 - 0.1 80 100 90 25 No - No
APA2011/A WLCSP1.5x1.5-9A
TDFN3x3-8
2.4 5.5 D 3 - 2.2 1.3 - 0.05 70 100 89 20 No - No
APA2012 WLCSP1.2x1.2-9
TDFN3x3-8
2.4 5.5 D 1.8 0.004 2.45 1.3 - 0.1 75 55 90 1 No - No
APA2018 WLCSP1.5x2-12
TQFN4x4-16
3 5.2 D 3.5 0.6 3.6 2 - 0.06 70 49 97.5 2 No - No
APA2051 TQFN4x4-28 4.5 5.5 AB 17.5 - 1.9 1.2 120 0.15 70 80 90 10 Yes - No
APA2057A TSSOP-28P
TQFN5x5-28
4.5 5.5 AB 17.5 - 1.9 1.2 120 0.15 70 80 90 10 Yes - No
APA2068 SOP-16P 4.5 5.5 AB 9 1 1.8 1.3 95 0.07 60 20 95 5 Yes - No
APA2069 DIP-16
DIP-16A
4.5 5.5 AB 9 - 2 1.3 95 0.07 60 20 95 5 Yes - No
APA2600 TQFN3x3-16 2.4 5.5 D 3 0.02 2.3 1.34 - 0.15 74 100 85 5 No - No
APA2604C SSOP-24
QFN4x4-20A
3.3 5.8 D 8 1.4 2.4 1.7 70 0.1 80 50 92 5 Yes A Yes
APA2605 SSOP-24
SSOP-24P
SOP-18
QFN4x4-20A
3.3 5.5 D 5 1.2 2.3 1.3 - 0.1 70 80 85 20 No A Yes
APA2606 SSOP-24
SSOP-24P
3.3 5.5 D 5 1.2 2.25 1.3 68 0.06 60 80 78 20 Yes A Yes
APA2607 TQFN5x5-32 8 16.5 D 18 1 - 12 - 0.07 65 230 - 20 No - Yes
APA2609 QFN4x4-20A 3.1 5.8 D 8 1.4 2.55 1.44 75 0.1 60 50 86 5 Yes A Yes
APA2609A QFN3x3-20 3.1 5.8 D 8 1.4 2.55 1.44 75 0.1 60 50 86 5 Yes A Yes
APA2613 TSSOP-28P
QFN4x4-28
8 26 D 20 0.016 - 7 - 0.1 - 120 95 15 No P No
APA2613A TSSOP-28P
QFN4x4-28
8 26 D 20 0.016 - 8 - 0.1 - 120 95 15 No P No
APA2614 TSSOP-28P
QFN4x4-28
8 26 D 20 0.016 - 12 0.1 0.1 65 120 95 15 No P No
APA2619 TSSOP-28P
QFN4x4-28
8 26 D 20 0.02 - 15 - 0.1 65 160 95 15 No P No
APA2622 TSSOP-28P
QFN4x4-28B
4.5 26 D 17 0.02 - 17 - 0.05 70 120 95 5 No P No
APA3010/1 SOP-8
SOP-8P
MSOP-8P
2.5 5.5 AB 7 0.38 2.3 1.3 - 0.04 60 28 - - No - No
APA0714
Active
3W Mono Fully Differential Audio Power Amplifier

Features
  • Operating Voltage : 2.4V~5.5V
  • Fully Differential Class-AB Amplifier
  • High PSRR and Excellent RF Rectification Immunity
  • Low Crosstalk
  • 3W Output Power into 3Ω Load at VDD=5V
  • Thermal and Over-Current Protections
  • Built-in Feedback Resistors Eliminate External Components Counts
  • Space Saving Package
- MSOP-8
- MSOP-8P
- TDFN3x3-8
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA0714 is a Mono, fully differential Class-AB audio amplifier which can operate with supply voltage from 2.4V to 5V and is available in MSOP8, MSOP8P, or TDFN3x3-8 package. The built-in feedback resistors can minimize the external component count and save the PCB space. High PSRR and fully differential architecture increase immunity to noise and RF rectification. In addition to these features, a short startup time and small package size make the APA0714 an ideal choice for Mobil Phones and Portable Devices. The APA0714 also integrates the de-pop circuitry that reduces the pops and click noises during power on/off and shutdown mode operation. Both Thermal and over-current protections are integrated to avoid the IC to be destroyed by over temperature and short-circuit. The APA0714 is capable of driving 3W at 5V into 3Ω speaker.
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APA2010/A
Active
3W Mono Class-D Audio Power Amplifier

Features
  • Operating Voltage : 2.4V-5.5V
  • High Efficiency up to 90%
  • Low SupplyCurrent
- IDD=2mA at VDD=5V
- IDD=1.6mA at VDD=3.6V
  • Low Shutdown Current
- IDD=1µA at VDD=5V
  • Output Power
at 1%THD+N (TDFN3x3-8)
- 1.3W, at VDD=5V, RL=8Ω
- 0.6W, at VDD=3.6V, RL=8Ω
- 2.4W, at VDD=5V, RL=4Ω (WLCSP-9)
- 2.1W, at VDD=5V, RL=4Ω
- 1.2W, at VDD=3.6V, RL=4Ω
at 10% THD+N (TDFN3x3-8)
- 1.6W, at VDD=5V, RL=8Ω
- 0.8W, at VDD=3.6V, RL=8Ω
- 3.1W, at VDD=5V, RL=4Ω (WLCSP-9)
- 2.65W, at VDD=5V, RL=4Ω
- 1.3W, at VDD=3.6V, RL=4Ω
  • Less External Components Required
  • Fast Startup Time (4ms)
  • High PSRR : 80dB at 217Hz
  • Thermal and Over-Current Protections
  • Space Saving Packages
  • WLCSP-9 Bump, 3mmx3mm TDFN-8, 3mmx3mm DFN-8
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2010/2010A is a mono, filter-free Class-D audio amplifier available in WLCSP-9 and TDFN3x3-8 packages. The gain can be set by an external input resistance. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast startup time and small package size make the APA2010/2010A an ideal choice for both cellular handsets and PDAs. The APA2010/2010A is capable of driving 1.5W at 5V or 730mW at 3.6V into 8Ω. It is also capable of driving 4Ω. The APA2010/2010A is designed with a Class-D architecture and operating with highly efficiency compared with Class-AB amplifier. It's suitable for power sensitive application, such as battery powered devices. The filterfree architecture eliminates the output filter, reduces the external component count, board area, and system costs, and simplifies the design. Moreover, the APA2010/2010A provides thermal and overcurrent protections.
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APA2010B
Active
3W Mono Class-D Audio Power Amplifier

Features
  • Operating Voltage : 2.4V-5.5V
  • High Efficiency up to 90%
  • Low Supply Current
- IDD=2mA at VDD=5V
- IDD=1.6mA at VDD=3.6V
  • Low Shutdown Current
- IDD=1µA at VDD=5V
  • Output Power
at 1% THD+N
- 2.4W, at VDD=5V, RL=4Ω (WLCSP-9)
- 2.1W, at VDD=5V, RL=4Ω
- 1.2W, at VDD=3.6V, RL=4Ω
at 10% THD+N
- 3.1W, at VDD=5V, RL=4Ω (WLCSP-9)
- 2.65W, at VDD=5V, RL=4Ω
- 1.3W, at VDD=3.6V, RL=4Ω
  • Less External Components Required
  • Fast Startup Time (4ms)
  • High PSRR : 80dB at 217Hz
  • Thermal and Over-Current Protections
  • Space Saving Packages WLCSP-9 Bump
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2010B is a mono, filter-free Class-D audio amplifier available in WLCSP-9 packages. The gain can be set by an external input resistance. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast startup time and small package size make the APA2010B an ideal choice for both cellular handsets and PDAs. The APA2010B is capable of driving 1.5W at 5V or 730mW at 3.6V into 8Ω. It is also capable of driving 4Ω. The APA2010B is designed with a Class-D architecture and operating with highly efficiency compared with Class-AB amplifier. It's suitable for power sensitive application, such as battery powered devices. The filter-free architecture eliminates the output filter, reduces the external component count, board area, and system costs, and simplifies the design. Moreover, the APA2010B provides thermal and over-current protections.
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APA2011/A
Active
2.8W Mono Class D Audio Power Amplifier with AGC

Features
  • Operating Voltage : 2.4V-5.5V
  • High Efficiency up to 90%
  • Supply Current
- IDD=3mA at VDD=5V
- IDD=2.5mA at VDD=3.6V
  • Low Shutdown Current
- IDD=1mA at VDD=5V
  • Output Power
at 1% THD+N
- 1.3W, at VDD=5V, RL=8Ω
- 0.6W, at VDD=3.6V, RL=8Ω
- 2.0W, at VDD=5V, RL=4Ω
- 1.0W, at VDD=3.6V, RL=4Ω
at 10% THD+N
- 1.6W, at VDD=5V, RL=8Ω
- 0.8W, at VDD=3.6V, RL=8Ω
- 2.8W, at VDD=5V, RL=4Ω (WLCSP-9)
- 2.4W, at VDD=5V, RL=4Ω
- 1.2W, at VDD=3.6V, RL=4Ω
  • APA2011 Dynamic Range Control (DRC) Provide Maximum 15dB Control (2:1 Compression Ratio)
  • APA2011A Non-Clip Function can Provide Maximum 15dB Control (Gain Decreasing)
  • Less External Components Required
  • Fast Start-up Time (4ms)
  • High PSRR : 70dB at 217Hz
  • Thermal and Over-Current Protections
  • Space Saving Packages WLCSP1.5x1.5-9 Bump, TDFN3x3-8
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2011/2011A is a mono, filter-free Class-D audio amplifier available in WLCSP1.5x1.5-9 or TDFN3x3-8 package. The default gains without the external input resistor is 27dB. Besides, the gain can be low down by external input resistance. APA2011 provides an Dynamic-RangeControl (DRC) function, and this function can low down the dynamic range for large input signal. APA2011 can provide maximun 15dB gain control. APA2011A can provide maximum 15dB gain decrease for non-clipping function, and this function can avoid output signal clipping. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast start-up time and small package size make the APA2011/2011A an ideal choice for portable devices. The APA2011/2011A is capable of driving 1.6W at 5V or 0.8W at 3.6V into 8Ω. It is also capable of driving 4Ω. The APA2011/2011A is designed with a Class-D architecture and operating with highly efficiency compared with ClassAB amplifier. It’s suitable for power sensitive application, such as battery-powered devices. The filter-free architecture eliminates the output filter, reduces the external component count, board area, and system costs, and simplifies the design. Moreover, the APA2011/2011A provides thermal and short circuit protection.
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APA2012
Active
3W Mono Class-D Audio Power Amplifier With Auto-Recovering Short-Circuit Protection

Features
  • Operating Voltage : 2.4V-6V
  • Low Supply Current
- IDD=1.8mA at VDD=5V
- IDD=1.5mA at VDD=3.6V
  • Low Shutdown Current
- IDD=1µA at VDD=5V
  • Output Power
at 1% THD+N
- 1.41W, at VDD=5V, RL=8Ω
- 0.74W, at VDD=3.6V, RL=8Ω
- 2.51W, at VDD=5V, RL=4Ω
- 1.32W, at VDD=3.6V, RL=4Ω
at 10% THD+N
- 1.8W, at VDD=5V, RL=8Ω
- 0.91W, at VDD=3.6V, RL=8Ω
- 3.2W, at VDD=5V, RL=4Ω
- 1.62W, at VDD=3.6V, RL=4Ω
  • Less External Components Required
  • Fast Startup Time (4ms)
  • High PSRR : 75dB at 217Hz
  • Short-Circuit and Thermal Protection
  • 9-Ball, 1.2mm x 1.2 mm Pitch WLCSP

General Description
The APA2012 is a mono, filter-free Class-D audio amplifier available in a WLCSP package. The gain can be setting by external input resistance. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast startup time and small package size make the APA2012 an ideal choice for both cellular handsets and PDAs. TheAPA2012 is capable of driving 1.3 W at 5 V or 600 mW at 3.6 V into 8Ω. The APA2012 is also capable of driving 4Ω. The APA2012 is designed with a Class-D architecture and operating with highly efficiency compared with Class-AB amplifier. It's suitable for power sensitive application, such as battery powered devices. The filterfree architecture eliminates the output filter, reduces the external component count, board area, and system costs, and simplifies the design. The APA2012 provides thermal and over circuit protection.
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APA2018
Active
3.6W Constant Output Power Class-D Audio Amplifier with Class-G Boost Converter

Features
  • Operating Voltage : 3V-5.2V
  • 3.6W into 4Ω Load from 3.6V Supply at 1% THD+N (WLCSP1.5x2-12)
  • 3W into 4Ω Load from 3.6V Supply at 1% THD+N (TQFN4x4-16)
  • Integrated Class-G Boost Converter-Increases Efficiency at Low Output Power
  • Low Quiescent Current of 3.5mA from 3.6V
  • Thermal and Short-Circuit Protection with Auto Recovery
  • 20dB Fixed Gain
  • Lead Free and Green Device Available (RoHS Compliant)
  • Power Enhanced Packages
- WLCSP 1.5x2-12
- TQFN 4x4-16

General Description
The APA2018 is a mono, high efficiency, filter-free Class-D audio amplifier and is available in WLCSP1.5x2-12 and TQFN4x4-16 Package. The APA2018 is a high efficiency Class-D audio power amplifier with an integrated Class-G boost converter that enhances efficiency at low output power. It drives up to 3.6W into an 4Ω speaker (1%THD+N). With 85% typical efficiency, the APA2018 helps extend battery life when playing audio. The built-in boost converter generates a 5.75V supply voltage for the Class-D amplifier when high output power is required. This provides a louder audio output than a stand-alone amplifier directly connected to the battery. During low audio output power periods, the boost converter deactivates and connects VBAT directly to the ClassD amplifier supply, PVDD. This improves overall efficiency. The APA2018 has an integrated low-pass filter to improve the RF rejection and reduce DAC out-of-band noise, increasing the signal-to-noise ratio (SNR).
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APA2051
Active
2.4W Stereo Audio Power Amplifier (with Gain Setting) & Capfree Headphone Driver

Features
  • Operating Voltage
- HVDD=3.0~3.6V
- VDD=4.5~5.5V
  • No Output Capacitor at Headphone Amplifier Required
  • Meeting VISTA Requirement
  • Low Distortion
AMP Mode
- THD+N=56dB, at VDD=5V, RL=4Ω, PO=1.5W
- THD+N=64dB, at VDD=5V, RL=8Ω, PO=0.9W
HP Mode
- THD+N=73dB, at HVDD=3.3V, RL=16Ω PO=125mW
- THD+N=77dB, at HVDD=3.3V, RL=32Ω, PO=88mW
- THD+N=85dB, at HVDD=3.3V, RL=10kΩ, VO=1.7Vrms
  • Output Power at 1% THD+N
- 1.9W, at VDD=5V, AMP Mode, RL=4Ω
- 1.2W, at VDD=5V, AMP Mode, RL=8Ω
  • at 10% THD+N
- 2.4W at VDD=5V, AMP Mode, RL=4Ω
- 1.5W at VDD=5V, AMP Mode, RL=8Ω
  • Depop Circuitry Integrated
  • Internal 19-Steps Gain Setting for Flexible Appli cation
  • Thermal Shutdown Protection and Over-Current Protection Circuitry
  • High SupplyVoltage Ripple Rejection
  • Surface-Mount Packaging
- TQFN4x4-28 (with Enhanced Thermal Pad)
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2051 is a monolithic integrated circuit, which combines a stereo power amplifier and a stereo output capacitor-less headphone amplifier. The stereo power amplifier provides 19-steps gain setting for flexible application. The headphone amplifier is ground-reference output, and no need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving cost, PCB’s space, and component height. Both the de-pop circuitry and the thermal shutdown protection circuitry are integrated in the APA2051, which reduces pops and clicks noise during power on/off and in shutdown mode. Thermal shutdown protects the chip from being destroyed by over-temperature failure. To simplify the audio system design in notebook computer applications, the APA2051 provides the internal gain setting, and these features can minimize components and PCB area. The APA2051 is available in TQFN4x4-28 package. This package is characterized by space saving and thermal efficiency.
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APA2057A
Active
22.4W Stereo Audio Power Amplifier (with Gain Setting) & Capfree Headphone Driver

Features
  • Operating Voltage
- HVDD=3.0~3.6V
- VDD=4.5~5.5V
  • No Output Capacitor at Headphone Amplifier Required
  • Meeting VISTA Requirement
  • Low Distortion
AMP Mode
- THD+N=56dB, at VDD=5V, RL=4Ω, PO=1.5W
- THD+N=64dB, at VDD=5V, RL=8Ω, PO=0.9W
HP Mode
- THD+N=73dB, at HVDD=3.3V, RL=16Ω PO=125mW
- THD+N=77dB, at HVDD=3.3V, RL=32Ω, PO=88mW
- THD+N=85dB, at HVDD=3.3V, RL=10kΩ, VO=1.7Vrms
  • Output Power at 1% THD+N
- 1.9W, at VDD=5V, AMP Mode, RL=4Ω
- 1.2W, at VDD=5V, AMP Mode, RL=8Ω
  • at 10% THD+N
- 2.4W at VDD=5V, AMP Mode, RL=4Ω
- 1.5W at VDD=5V, AMP Mode, RL=8Ω
  • Depop Circuitry Integrated
  • Internal 19-Steps Gain Setting for Flexible Application
  • Thermal Shutdown Protection and Over-Current Protection Circuitry
  • High SupplyVoltage Ripple Rejection
  • Surface-Mount Packaging
- TSSOP-28P (with Enhanced Thermal Pad)
- TQFN5x5-28 (with Enhanced Thermal Pad)
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2057A is a monolithic integrated circuit, which combines a stereo power amplifier and a stereo output capacitor-less headphone amplifier. The stereo power amplifier provides 19-steps gain setting for flexible application. The headphone amplifier is ground-reference output, and doesn’t need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving cost, PCB’s space, and component height. Both the de-pop circuitry and the thermal shutdown protection circuitry are integrated in the APA2057A, which reduces pops and clicks noise during power on/ off and in shutdown mode. Thermal shutdown protects the chip from being destroyed by over-temperature failure. To simplify the audio system design in notebook computer applications, the APA2057A provides the internal gain setting, and these features can minimize components and PCB area. The APA2057A is available in both TSSOP-28P and TQFN5x5-28 packages. Both packages are characterized by space saving and thermal efficiency.
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APA2068
Active
Stereo 2.6W Audio Power Amplifier (With DC_Volume Control)

Features
  • Low Operating Current with 9mA
  • Improved Depop Circuitry to Eliminate Turn-on and Turn-off Transients in Outputs
  • High PSRR
  • 32 Steps Volume Adjustable by DC Voltage with Hysteresis
  • 2.6W per Channel Output Power into 4Ω Load at 5V, BTL Mode
  • Two Output Modes Allowable with BTL and SE Modes Selected by SE/(BTL)' pin
  • Low Current Consumption in Shutdown Mode (1µA)
  • Short-Circuit Protection
  • Thermal Shutdown Protection and Over-Current Protection Circuitry
  • Maximum Output Swing Clamping Function
  • The OUT+ Signal and the IN- Signal are Outphase
  • SOP-16P Packages with Thermal Pad Package
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
APA2068 is a monolithic integrated circuit, which provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2.6W (1.8W) into 4W with less than 10% (1.0%) THD+N. The attenuator range of the volume control in APA2068 is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V) with 32 steps. The advantage of internal gain setting can be less components and PCB area. Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in APA2068, that reduce pops and clicks noise during power up or shutdown mode operation. It also improves the power off pop noise and protects the chip from being destroyed by over temperature and short current failure. To simplify the audio system design, APA2068 combines a stereo bridge-tied loads (BTL)' mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal.
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APA2069
Active
Stereo 2.6W Audio Power Amplifier (with DC_Volume Control)

Features
  • Low Operating Current with 9mA
  • Improved Depop Circuitry to Eliminate Turn-on and Turn-off Transients in Outputs
  • High PSRR
  • 32 Steps Volume Adjustable by DC Voltage with Hysteresis
  • 2.6W per Channel Output Power into 4Ω Load at 5V, BTL Mode
  • Two Output Modes Allowable with BTL and SE Modes Selected by SE/(BTL)' Pin
  • Low Current Consumption in Shutdown Mode (1µA)
  • Short Circuit Protection
  • Thermal Shutdown Protection and Over-Current Protection Circuitry
  • The OUT+ Signal and the IN- Signal are Outphase
  • Power Enhanced Package (DIP-16 / DIP-16A)
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
APA2069 is a monolithic integrated circuit, which provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2.6W (2W) into 4W with less than 10% (1.0%) THD+N. The attenuator range of the volume control in APA2069 is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V) with 32 steps. The advantage of internal gain setting can be less components and PCB area. Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in APA2069, that reduce pops and clicks noise during power up or shutdown mode operation. It also improves the power off pop noise and protects the chip from being destroyed by over temperature and short current failure. To simplify the audio system design, APA2069 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/(BTL)' input control pin signal.
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APA2600
Active
2.8W Stereo Class-D Audio Power Amplifier

Features
  • Operating Voltage : 2.4V~5.5V
  • Filter-free Class-D Amplifier
  • High Efficiency 87% at PO=1.5W, 8Ω Speaker, VDD=5V
  • Fast Start-up Time (20ms)
  • High PSRR : 70dB at 217Hz
  • Thermal and Over-Current Protections
  • Two Gain-Setting Selectable : 6dB and 12dB
  • Less External Components Required
  • Space Saving Package – TQFN3x3-16
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2600 is a stereo, high efficiency, filter-free ClassD audio amplifier available in a TQFN3x3-16 pins package. The internal gain setting can minimize the external component count and save the PCB space. For the flexible application, the gain can be set to 6dB or 12dB by GAIN control pin. High PSRR and differential architecture provide increase immunity to noise and RF rectification. In addition to these features, short start-up time and small package size make the APA2600 an ideal choice for cellular handsets, PDA, and notebook PCs. The APA2600 is suitable for battery power appication because its operating voltage is from 2.4V to 5V and has very low shutdown current. The filter-free architecture eliminates the output filter compared to the traditional Class-D audio amplifier, and reduces the external component counts. The APA2600 also integrates the de-pop circuitry that reduces the pops and click noises during power on/ off or shutdown enable process. The APA2600 is capable of driving 2.8W at 5V or 570mW at 2.4V into 4Ω speaker. In addition, it provides thermal and over-current protections.
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APA2604C
Active
3W Stereo Class-D Audio Power Amplifier and Class AB Headphone Driver
(DC Volume Control, UVP, AGC)


Features
  • Operating Voltage : 3.3V-5.8V
  • High Efficiency 85% at PO=3W, 4Ω Speaker, VDD=5V, AGC Disable
  • Filter-Free Class-D Amplifier
  • Low Shutdown Current
- IDD=1µA at VDD=5V
  • 64 Steps Volume Adjustable from -80dB to +20dB by DC Voltage with Hysteresis
  • AGC (Non-Clip) Function
- Disable : 0.45VDD~VDD, Floating
- Max, Power : Internal set limit level AGC≤0.27VDD
  • Smooth mute activation deactivation
  • UVP Function
- Disable : Floating
  • Output Power at THD+N=1%
BTL Mode
- 2.4W at VDD=5V, RL=4Ω
- 1.4W at VDD=5V, RL=8Ω
SE Mode
- 70mW at VDD=5V, RL =32Ω
Output Power at THD+N=10%
- 3W at VDD=5V, RL=4Ω
- 1.7W at VDD=5V, RL=8Ω
  • Less External Components Required
  • Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL Pin
  • Input Signal and Headphone Output Signal in Phase
  • Thermal and Over-Current Protections with Auto-Recovery
  • Power Enhanced Packages SSOP-24 (236mil), QFN4x4-20A
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2604C is a stereo, high efficiency, filter-free ClassD audio amplifier available in a SSOP-24 and QFN4x4- 20A packages. The APA2604C provide the precise DC volume control, the gain range is from +20dB (VVOLUME=0V) to -80dB (VVOLUME=5V) with 64 steps precise control. It’s easy to get the suitable amplifier’s gain with the 64 steps gain setting. The filter-free architecture eliminates the output filters compared to the traditional Class-D audio amplifier, and reduces the external component counts and the components high, it could save the PCB space, system cost, simplifies the design and the power loss at filter. APA2604C provides an AGC (Non-Clip) function, and this function can low down the dynamic range for large input signal. APA2604C can provide from 20dB to -80dB with 64 steps gain decrease for non-clipping function, and this function can avoid output signal clipping. The APA2604C also integrates the de-pop circuitry that reduces the pops and click noises during power on/off or shutdown enable process. The APA2604C has built-in over-current and thermal protection that prevent the chip being destroyed by short circuit or over temperature situation. APA2604C combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal. APA2604C is capable of driving 3W at 5V into 4Ω speaker. The efficiency can archived 85% at RL=4Ω when PO=3W at VDD=5V. APA2604C is capable of driving 70mW at 5V into 32Ω Headphone. Smooth mute function when activation or deactivation mute mode to minimize pop noise. UVP function minimize power off induced pop noise.
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APA2605
Active
2.8W Stereo Class-D Audio Power Amplifier (with DC Volume Control, AGC Function)

Features
  • Operating Voltage : 3.3V-5.5V
  • High Efficiency 85% at PO=2.8W, 4Ω Speaker, VDD=5V
  • Filter-Free Class-D Amplifier
  • Low Shutdown Current
- IDD=1µA at VDD=5V
  • 64 Steps Volume Adjustable from -80dB to +20dB by DC Voltage with Hysteresis
  • AGC (Non-Clip) Function
  • Output Power at THD+N=1%
- 2.3W at VDD=5V, RL=4Ω
- 1.3W at VDD=5V, RL=8Ω
Output Power at THD+N=10%
- 2.8W at VDD=5V, RL=4Ω
- 1.6W at VDD=5V, RL=8Ω
  • Less External Components Required
  • Thermal and Over-Current Protections with Auto Recovery
  • Power Enhanced Packages SSOP-24, SOP-18, SSOP-24P & QFN4x4-20A
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2605 is a stereo, high efficiency, filter-free ClassD audio amplifier available in SOP-18, SSOP-24, SSOP-24P, and QFN4x4-20A packages. The APA2605 provides the precise DC volume control, the gain range is from -80dB (VVOLUME=0V) to +20dB (VVOLUME=5V) with 64 steps precise control. It’s easy to get the suitable amplifier’s gain with the 64 steps gain setting. The filter-free architecture eliminates the output filters compared to the traditional Class-D audio amplifier, and reduces the external component counts and the components high, it could save the PCB space, system cost, simplifies the design and the power loss at filter. APA2605 provides an AGC (Non-Clip) function, and this function can low down the dynamic range for large input signal. APA2605 can provide from 20dB to -80dB with 64 steps gain decrease for non-clipping function, and this function can avoid output signal clipping. The APA2605 also integrates the de-pop circuitry that reduces the pops and click noise during power on/off or shutdown enable process. The APA2605 has build-in over-current and thermal protection that prevent the chip being destroyed by shortcircuit or over-temperature situation. APA2605 is capable of driving 2.8W at 5V into 4Ω speaker. The efficiency can archive 85% at RL=4Ω when PO=2.8W at VDD=5V.
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APA2606
Active
2.8W Stereo Class-D Audio Power Amplifier and Class AB Headphone Driver
(DC Volume Control, UVP, AGC Function)


Features
  • Operating Voltage : 3.3V-5.5V
  • High Efficiency 85% at PO=2.8W, 4Ω Speaker, VDD=5V
  • Filter-Free Class-D Amplifier
  • Low Shutdown Current
- IDD=1µA at VDD=5V
  • 64 Steps Volume Adjustable from -80dB to +20dB by DC Voltage with Hysteresis
  • AGC (Non-Clip) Function
  • Under-Voltage Protection Function
  • Output Power at THD+N=1%
BTL Mode
- 2.25W at VDD=5V, RL=4Ω
- 1.3W at VDD=5V, RL=8Ω
SE Mode
- 68mW at VDD=5V, RL=32Ω
Output Power at THD+N=10%
- 2.8W at VDD=5V, RL=4Ω
- 1.6W at VDD=5V, RL=8Ω
  • Less External Components Required
  • Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL Pin
  • Thermal and Over-Current Protections with Auto Recovery
  • Power Enhanced Packages SSOP-24 and SSOP-24P
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2606 is a stereo, high efficiency, filter-free ClassD audio amplifier available in SSOP-24 and SSOP-24P packages. The APA2606 provides the precise DC volume control, and the gain range is from -80dB (VVOLUME=0V) to +20dB (VVOLUME=5V) with 64 steps precise control. It’s easy to get the suitable amplifier’s gain with the 64 steps gain setting. The filter-free architecture eliminates the output filters compared to the traditional Class-D audio amplifier, and reduces the external component counts and the components high, it could save the PCB space, system cost, simplifies the design and the power loss at filter. APA2606 provides an AGC (Non-Clip) function, and this function can low down the dynamic range for large input signal. APA2606 can provide from 20dB to -80dB with 64 steps gain decrease for non-clipping function, and this function can avoid output signal clipping. The APA2606 also integrates the de-pop circuitry that reduces the pops and click noises during power on/off or shutdown enable process. The APA2606 has build-in over-current and thermal protection that prevent the chip being destroyed by shortcircuit or over-temperature situation. APA2606 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal. APA2606 is capable of driving 2.8W at 5V into 4Ω speaker. The efficiency can archived 85% at RL=4Ω when PO=2.8W at VDD=5V. APA2606 is capable of driving 60mW at 5V into 32Ω headphone.
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APA2607
Active
6W Stereo Class-D Audio Power Amplifier

Features
  • Operating Voltage: 8.0V-16.5V
  • High Efficiency 90% at PO=6W, 8Ω Speaker, VDD=12V
  • Low Shutdown Current
- IDD=5µA at VDD=16.5V
  • Power Limit Function
  • SwitchableNon-ClipFunction/DRC (Dynamic Range Control) Function
  • Build-in Oscillator
  • Spread Clock Function
  • External Synchronization Function
  • Master/Slaver Synchronization Function
  • DC Detection Function
  • Stereo/Monaural Function
  • Shutdown and Mute Function
  • Thermal and Over-Current Protections with Auto Recovery
  • Space Saving Package TQFN5x5-32
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA2607 is a stereo, high efficiency, Class-D audio amplifier available in a TQFN5x5-32 package. The filter-free Class-D architecture eliminates the external low pass filters and saves the PCB space and BOM costs. The APA2607 also has spread clock function that reduces the high frequency radiation and low the EMI noise. The Zero-crossing-change function changes the gain when both output (VOUTP and VOUTN) crossing together can minimum the pop noise. The power limit function can protect the speaker when output signal excesses the speaker limit rating. The non-clip and DRC functions eliminate the distortion at large input signal and can fit the high dynamic input signal to a small dynamic speaker. The operating voltage is from 8V to 16.5V. The APA2607 is capable of driving 6W at 12V into 8Ω speaker and provides thermal and over-current protections. The APA2607 also can detect the DC that prevents the speaker voice coil being destroyed.
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APA2609
Active
3W Stereo Class D Audio Power Amplifier and Class AB Headphone Driver
(DC Volume Control, UVP, AGC)


Features
  • Operating Voltage : 3.1V-5.8V
  • High Efficiency 85% at PO=3W, 4Ω Speaker, VDD=5V
  • Filter-free Class D Amplifier
  • Low Shutdown Current
- IDD=1µA at VDD=5V
  • 64 Steps Volume Adjustable from -80dB to +20dB by DC Voltage with Hysteresis
  • AGC (Non-Clip) Function
- Disable : 0.45VDD~VDD, Floating
- Max, Power : Internal set limit level AGC<0.27VDD
  • Under Voltage Protection Function
- Disable : Floating
  • Output Power at THD+N=1%
BTL mode
- 2.55W at VDD=5V, RL=4Ω
- 1.44W at VDD=5V, RL=8Ω SE mode
- 75mW at VDD=5V, RL=32Ω
Output Power at THD+N=10%
- 3.14W at VDD=5V, RL=4Ω
- 1.77W at VDD=5V, RL=8Ω
  • Less External Components Required
  • Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL pin
  • Input signal and Headphone Output Signal in phase
  • Thermal and Over-Current Protections with Auto-Recovery
  • Power Enhanced Packages
QFN4x4-20A (APA2609)
QFN3x3-20 (APA2609A)
  • Lead Free and Green Device Available (RoHS Compliant)

General Description
The APA2609 provides DC volume control, gain range is from +20dB (VVOLUME=0V) to -80dB (VVOLUME=5V) with gain range from. It’s easy to get the suitable amplifier’s gain with the 64 steps gain setting. The filter-free architecture eliminates the output filters compared to the traditional Class-D audio amplifier, and reduces the external component counts and the components height, it could save the PCB space, system cost, simplifies the design and the power loss at filter. APA2609 provides an AGC (Non-Clip) function, which limits output swing from overstress speaker. It reduces internal gain instead of clipping peak to maintain low THD. The APA2609 also integrates the de-pop circuitry that reduces the pops and click noises during power on/off or shutdown enable process. The APA2609 has built-in over-current and thermal protection that prevent the chip being destroyed by short circuit or over temperature situation. APA2609 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal. APA2609 is capable of driving 3W at 5V into 4Ω speaker. The efficiency can archived 85% at RL=4Ω when PO=3W at VDD=5V. APA2609 is capable of driving 75mW at 5V into 32Ω Headphone. UVP function minimize power off induced pop noise.
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APA2609A
Active
3W Stereo Class D Audio Power Amplifier and Class AB Headphone Driver
(DC Volume Control, UVP, AGC)


Features
  • Operating Voltage : 3.1V-5.8V
  • High Efficiency 85% at PO=3W, 4Ω Speaker, VDD=5V
  • Filter-free Class D Amplifier
  • Low Shutdown Current
- IDD=1µA at VDD=5V
  • 64 Steps Volume Adjustable from -80dB to +20dB by DC Voltage with Hysteresis
  • AGC (Non-Clip) Function
- Disable : 0.45VDD~VDD, Floating
- Max, Power : Internal set limit level AGC<0.27VDD
  • Under Voltage Protection Function
- Disable : Floating
  • Output Power at THD+N=1%
BTL mode
- 2.55W at VDD=5V, RL=4Ω
- 1.44W at VDD=5V, RL=8Ω SE mode
- 75mW at VDD=5V, RL=32Ω
Output Power at THD+N=10%
- 3.14W at VDD=5V, RL=4Ω
- 1.77W at VDD=5V, RL=8Ω
  • Less External Components Required
  • Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL pin
  • Input signal and Headphone Output Signal in phase
  • Thermal and Over-Current Protections with Auto-Recovery
  • Power Enhanced Packages
QFN4x4-20A (APA2609)
QFN3x3-20 (APA2609A)
  • Lead Free and Green Device Available (RoHS Compliant)

General Description
The APA2609 provides DC volume control, gain range is from +20dB (VVOLUME=0V) to -80dB (VVOLUME=5V) with gain range from. It’s easy to get the suitable amplifier’s gain with the 64 steps gain setting. The filter-free architecture eliminates the output filters compared to the traditional Class-D audio amplifier, and reduces the external component counts and the components height, it could save the PCB space, system cost, simplifies the design and the power loss at filter. APA2609 provides an AGC (Non-Clip) function, which limits output swing from overstress speaker. It reduces internal gain instead of clipping peak to maintain low THD. The APA2609 also integrates the de-pop circuitry that reduces the pops and click noises during power on/off or shutdown enable process. The APA2609 has built-in over-current and thermal protection that prevent the chip being destroyed by short circuit or over temperature situation. APA2609 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal. APA2609 is capable of driving 3W at 5V into 4Ω speaker. The efficiency can archived 85% at RL=4Ω when PO=3W at VDD=5V. APA2609 is capable of driving 75mW at 5V into 32Ω Headphone. UVP function minimize power off induced pop noise.
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APA2613
Active
6W Stereo Class-D Audio Power Amplifier

Features
  • Supply Voltage is 8V ~ 26V
  • Class D operation eliminates heat sink & reduce power supply requirement
  • 20, 26, 32, 36, 4 steps gain setting
  • 6W per channel (THD+N=10%) output power into 8Ω load at 10V, Class D output
  • MONO function combines two channels’output to supply 12W into a 4Ω load at 12V (THD+N=10%)
  • Adjustable Power limit function plus DC Protection
  • Thermal and Over-Current Protections with Auto Recovery option
  • TSSOP-28P with thermal pad packages
  • QFN4x4-28 with thermal pad packages

General Description
The APA2613 is a stereo, high efficiency, Class-D audio amplifier available in TSSOP-28P and QFN4x4-28A pins packages. The Class-D power amplifier has higher efficiency compare to the tradition Class-AB power amplifier. The filterfree Class-D architecture eliminates the external low pass filters. The internal gain setting can minimum the external component counts, and for the flexible application the gain can be set to 4-step 20, 26, 32, 36dB by gain control ins (GAIN0 and GAIN1). The power limit function cans protection the speaker when output signal excess the speaker limit rating. The integration of Class-D power amplifier is a best solution for power efficiency and lower the total BOM costs. The operating voltage is from 8V to 26V. The APA2613 power amplifiers are capable of driving 6W at VDD=10V into 8Ω speaker, and provides thermal and over-current protections also can detection the DC that prevent to destroy the speaker voice coil.
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APA2613A
Active
8W Stereo Class-D Audio Power Amplifier

Features
  • Supply Voltage is 8V ~ 26V
  • Class D operation eliminates heat sink & reduce power supply requirement
  • 20, 26, 32, 36, 4 steps gain setting
  • 8W per channel (THD+N=10%) output power into 8Ω load at 12V, Class D output
  • MONO function combines two channels’ output to supply 12W into a 4Ω load at 12V (THD+N=10%)
  • Adjustable Power limit function plus DC Protection
  • Thermal and Over-Current Protections with Auto Recovery option
  • TSSOP-28P with thermal pad packages
  • QFN4x4-28 with thermal pad packages

General Description
The APA2613A is a stereo, high efficiency, Class-D audio amplifier available in TSSOP-28P and QFN4x4-28A pins packages. The Class-D power amplifier has higher efficiency compare to the tradition Class-AB power amplifier. The filterfree Class-D architecture eliminates the external low pass filters. The internal gain setting can minimum the external component counts, and for the flexible application the gain can be set to 4-step 20, 26, 32, 36dB by gain control ins (GAIN0 and GAIN1). The power limit function cans protection the speaker when output signal excess the speaker limit rating. The integration of Class-D power amplifier is a best solution for power efficiency and lower the total BOM costs. The operating voltage is from 8V to 26V. The APA2613A power amplifiers are capable of driving 6 W at VDD=10V into 8Ω speaker, and provides thermal and over-current protections also can detection the DC that prevent to destroy the speaker voice coil.
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APA2614
Active
15W Stereo Class-D Audio Power Amplifier

Features
  • Supply Voltage is 8V ~ 26V
  • Class D operation eliminates heat sink & reduce power supply requirement
  • 20, 26, 32, 36, 4 steps gain setting
  • 15W/ch into an 8Ω Loads at 10% THD+N from a 16V supply
  • 10W/ch into 8Ω Loads at 10% THD+N from a 13V supply
  • 30W into a 4Ω Mono Load at 10% THD+N from a 16V Supply
  • Adjustable Power limit function plus DC Protection
  • Thermal and Over-Current Protections with Auto Recovery option
  • TSSOP-28P with thermal pad packages
  • QFN4x4-28 with thermal pad packages

General Description
The APA2614 is a stereo, high efficiency, Class-D audio amplifier available in TSSOP-28P and QFN4x4-28 pins packages. The Class-D power amplifier has higher efficiency compare to the tradition Class-AB power amplifier. The filterfree Class-D architecture eliminates the external low pass filters. The internal gain setting can minimum the external component counts, and for the flexible application the gain can be set to 4-step 20, 26, 32, 36dB by gain control ins (GAIN0 and GAIN1). The power limit function cans protection the speaker when output signal excess the speaker limit rating. The integration of Class-D power amplifier is a best solution for power efficiency and lower the total BOM costs. The operating voltage is from 8V to 26V. The APA2614 power amplifiers are capable of driving 15W at VDD=16V into 8Ω speaker, and provides thermal and over-current protections also can detection the DC that prevent to destroy the speaker voice coil.
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APA2619
Active
15W Stereo Class-D Audio Power Amplifier

Features
  • Supply Voltage is 8V ~ 26V
  • Class D operation eliminates heat sink & reduce power supply requirement
  • 20, 26, 32, 36, 4 steps gain setting
  • 15W/ch into an 8Ω Loads at 10% THD+N from a 16V supply
  • 10W/ch into 8Ω Loads at 10% THD+N from a 13V supply
  • 30W into a 4Ω Mono Load at 10% THD+N from a 16V Supply
  • Adjustable Power limit function plus DC Protection
  • Thermal and Over-Current Protections with Auto Recovery option
  • TSSOP-28P with thermal pad packages
  • QFN4x4-28 with thermal pad packages

General Description
The APA2619 is a stereo, high efficiency, Class-D audio amplifier available in TSSOP-28P and QFN4x4-28 pins packages. The Class-D power amplifier has higher efficiency compare to the tradition Class-AB power amplifier. The filterfree Class-D architecture eliminates the external low pass filters. The internal gain setting can minimum the external component counts, and for the flexible application the gain can be set to 4-step 20, 26, 32, 36dB by gain control ins (GAIN0 and GAIN1). The power limit function cans protection the speaker when output signal excess the speaker limit rating. The integration of Class-D power amplifier is a best solution for power efficiency and lower the total BOM costs. The operating voltage is from 8V to 26V. The APA2619 power amplifiers are capable of driving 15W at VDD=16V into 8Ω speaker, and provides thermal and over-current protections also can detection the DC that prevent to destroy the speaker voice coil.
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APA2622
Active
15W Stereo Class-D Audio Power Amplifier

Features
  • Supply Voltage is 4.5V ~ 26V
  • Class D operation eliminates heat sink & reduce power supply requirement
  • 20, 26, 32, 36, 4 steps gain setting
  • 15W/ch into an 8Ω Stereo Loads at 10% THD+N from a 16-V supply
  • 10W/ch into an 8Ω Stereo Loads at 10% THD+N from a 12-V supply
  • 30W into a 4Ω Mono Load at 10% THD+N from a 16-V supply
  • 90% Efficient Class-D Operation Eliminates Need for Heat Sinks
  • External AGC function
  • Thermal and Over-Current Protections with Auto Recovery option
  • TSSOP-28P with thermal pad packages
  • QFN4x4-28B with thermal pad packages

General Description
The APA2622 is a stereo, high efficiency, Class-D audio amplifier and is available in TSSOP-28P and QFN4x4-28B pins packages. The Class-D power amplifier has higher efficiency compared to the traditional Class-AB power amplifier. The filter free Class-D architecture eliminates the external low pass filters. The internal gain setting can minimize the external component counts, and for the flexible application the gain can be set to 4-step 20, 26, 32, 36dB by gain control pins (GAIN0 and GAIN1). The AGC function protects speaker from being out of its power rating but keeps acceptable performance. The integration of Class-D power amplifier is a best solution for high efficiency and low BOM costs. The operating voltage is from 4.5V to 26V. The APA2622 power amplifiers are capable of driving 15W at VDD=16V into 8Ω speaker, and provides thermal and over-current protections. It also can detect the DC and then prevent the speaker voice coil from being detroyed.
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APA3010/1
Active
3W Mono Low-Voltage Audio Power Amplifier

Features
  • Operating Voltage : 2.5V-5.5V
  • Bridge-Tied Load (BTL) Mode Operation
  • Supply Current – IDD=7mA at VDD=5V
  • Low Shutdown Current – IDD=0.1µA
  • Low Distortion
- 2.5W, at VDD=5V, BTL, RL=3Ω, THD+N=0.1%
- 2.1W, at VDD=5V, BTL, RL=4Ω, THD+N=0.1%
  • Output Power
at 1% THD+N
- 2.6W, at VDD=5V, BTL, RL=3Ω
- 2.3W, at VDD=5V, BTL, RL=4Ω
at 10% THD+N
- 3.3W at VDD=5V, BTL, RL=3Ω
- 2.7W at VDD=5V, BTL, RL=4Ω
  • Depop Circuitry Integrated
  • Thermal Shutdown Protection and Over-Current Protection Circuitry
  • High SupplyVoltage Ripple Rejection
  • Surface-Mount Packaging
- MSOP-8P (with Enhanced Thermal Pad)
- SOP-8P (with Enhanced Thermal Pad)
- SOP-8
  • Lead Free and Green Devices Available (RoHS Compliant)

General Description
The APA3010/1 is a bridged-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers. Operating with a 5V supply, the APA3010/1 can deliver 3.3W of continuous power into a BTL 3Ω load at 10% THD+N throughout voice band frequencies. Although this device is characterized out to 20kHz, its operation is optimized for narrow band applications such as wireless communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. This device features a shutdown mode for power sensitive applications with special depop circuitry to eliminate speaker noise when exiting shutdown mode. The APA3010/1 are available in a SOP-8, SOP-8P or MSOP-8P.
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