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The A22H165M is a class-G stereo headphone driver dedicated to high audio performance, high power efficiency and space-constrained applications such as wearable and fitness.
It is based on the core technology of a low power dissipation amplifier combined with a high efficiency buck converter for supplying this amplifier.
When powered by a battery, the buck 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 A22H165M is designed to be used with an output serial resistor. It ensures unconditional stability over a wide range of capacitive loads. The A22H165M is packaged in a tiny 16-bump flip-chip package with a pitch of 400 μm.主要特性
- 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
- I²C interface for volume control
- Digital volume control range from -60 dB to +4 dB
- Independent right and left channel shutdown control
- Integrated high-efficiency buck converter
- Low software standby current: 5 μA max
- Output coupling capacitors removed
- Thermal shutdown and short-circuit protection
- Flip-chip package: 1.65 mm x 1.65 mm, 400 μm pitch, 16 bumps
All resources
产品规格 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 25 Sep 2020 |
25 Sep 2020
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手册 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 26 Feb 2020 |
26 Feb 2020
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CAD/EDA Symbols, Footprints and Models
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 | |||||||||||
| A22H165MJ | 1 distributors | Free Sample Buy Direct |
批量生产
|
EAR99 | NEC | Tape And Reel | Chip Scale Package 0.4mm pitch | -40 | 85 | CHINA | 0.5 / 1k | |
