产品概述
描述
The A22H165 is a class-G stereo headphone driver dedicated to high-performance audio, high power efficiency and space-constrained applications. It is based on the core technology of a low power dissipation amplifier combined with a high efficiency step-down DC-DC converter for supplying this amplifier. When powered by a battery, the internal step down DC-DC converter generates the appropriate voltage to the amplifier depending on the amplitude of the audio signal to supply the headsets. It achieves a total 2.1 mA current consumption at 100 μW output power (10 dB crest factor). THD+N is 0.02 % maximum at 1 kHz and PSRR is 100 dB at 217 Hz, which ensures a high audio quality of the device in a wide range of environments. The traditionally bulky output coupling capacitors can be removed. A dedicated common-mode sense pin removes parasitic ground noise. The A22H165 is designed to be used with an output serial resistor. It ensures unconditional stability over a wide range of capacitive loads. The A22H165 is packaged in a tiny 16-bump flip-chip package with a pitch of 400 μm.-
所有功能
- Power supply range: 2.3 V to 4.8 V
- 0.6 mA/channel quiescent current
- 2.1 mA current consumption with 100 μW/channel (10 dB crest factor)
- 0.006% typical THD+N at 1 kHz
- 100 dB typical PSRR at 217 Hz
- 100 dB of SNR A-weighted at G = 0 dB
- Zero "pop and click"
- Gain settings: 0 dB and 6 dB
- Integrated high efficiency step-down converter
- Low standby current: 5 μA max
- Output-coupling capacitors removed
- Thermal shutdown
- Flip-chip package: 1.65 mm x 1.65 mm, 400 μm pitch, 16 bumps
All resources
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产品规格 (1)
| Resource title | Latest update | |||
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| 04 Aug 2020 |
04 Aug 2020
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手册 (1)
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| 23 Nov 2020 |
23 Nov 2020
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - A22H165
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样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| A22H165J | 1 distributors | Free Sample Buy Direct |
批量生产
|
EAR99 | NEC | Tape And Reel | CSP P 0.4 mm | -40 | 85 | FRANCE | 0.2978 / 1k | |
