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.
|製品型番||パッケージ||Packing Type||Operating Temperature (°C) (min)||Operating Temperature (°C) (max)||Marketing Status||Unit Price (US$) *||数量||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|A22H165MJ||Chip Scale Package 0.4mm pitch||Tape And Reel||-40||85||Active : Product is in volume production||0.5||1000||EAR99||CHINA||MORE INFO||Free Sample 買い物かごに追加||DISTRIBUTOR AVAILABILITY|
|製品型番||Marketing Status||パッケージ||Grade||RoHS Compliance Grade||Material Declaration**|
|A22H165MJ||アクティブ||Chip Scale Package 0.4mm pitch||インダストリアル||Ecopack3|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.