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TPA6140A2 Overview Sachin Ranganathan Portable Audio Marketing Manager March 2009 TPA6140A2 Class-G DirectPath TM Headphone Amplifier with I 2 C Volume Control EVM Features TI Class-G technology DirectPath™ technology 1.6 mm x 1.6 mm, 0.4 mm pitch WCSP 1.2 mA from 2.3 V to 5.5 V supply
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TPA6140A2Class-G DirectPathTM Headphone Amplifier with I2C Volume Control
EVM
Features
- TI Class-G technology
- DirectPath™ technology
- 1.6 mm x 1.6 mm, 0.4 mm pitch WCSP
- 1.2 mA from 2.3 V to 5.5 V supply
- 32-step, -59 dB to +4 dB gain range
- I2C interface
- Fully differential (or SE) stereo input
- 100 dB+ power supply rejection at 217 Hz
- No turn-on or turn-off pop
- High-impedance output mode
Benefits
- Long battery life for MP3 playback
- No large output capacitors
- Small board solution
- Very Low power consumption
- Built-in volume control without ext. resistors
- Simple digital control interface
- Excellent system noise rejection
- No GSM frame-rate noise
- Noiseless activation
- No ext. switch reqd. for multi-function jacks
Applications
- Mobile/Smart phones
- Portable Media/MP3 Players
1ku: WCSP $0.95
TPA6140A2EVM
TI Stereo Headphone Amplifiers
TPA6132A2
TPA6135A2
TPA6110A2
TPA6111A2
TPA6112A2
TPA6130A2
TPA4411
- 25 mW/Ch Output Power
- DirectPathTM (Cap-free)
- Low Power Consumption
- Advanced Pop Reduction
- Hi-Z Mode (TPA6135A2)
- Package: QFN
- 80 mW/Ch Output Power
- DirectPathTM (Cap-free)
- Fixed Gain
- Package: QFN, WCSP
- 138 mW/Ch Output Power
- DirectPathTM (Cap-free)
- I2C Volume Control
- Advanced Pop Reduction
- Package: QFN, WCSP
- 150 mW/Ch Output Power
- PC Supply Compatible
- External Gain
- TPA6110A2, TPA6111A2: Different Pin Order
- TPA6112A2: Diff Inputs
- Package: MSOP-PowerPad, SOIC (TPA6111A2)
TPA6140A2
- High efficiency Class-G
- Very Low Power Consumption
- DirectPath
- I2C volume control
- Hi-Z mode
- 0.4 mm pitch WCSP
TPA6100A2
TPA6101A2
TPA6102A2
- 50 mW/Ch Output Power
- 0.75 mA Quiescent Current
- TPA6100A2: External Gain
- TPA6101A2: 2 dB Fixed Gain
- TPA6102A2: 14 dB Fixed Gain
- Package: BGA (TPA6101A2), MSOP, SOIC
Traditional
105 dB
100 dB
NEW
SNR
95 dB
90 dB
Class-G + DirectPathTM
85 dB
DirectPathTM
