Datasheet > A22H165

A22H165

更新时间： 2024-11-17 14:58:07

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		放大器
页数	文件大小	规格书
37页	2672K
描述
高性能G类立体声耳机放大器

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中文翻译

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A22H165 数据手册

A22H165

High-performance class-G stereo headphone amplifier

Datasheet - production data

Applications

A22H165 - Flip-chip

 Cellular / smart phones

 Portable media player

 Wearable

 Fitness and healthcare

Description

Pinout (top view)

The A22H165 is a class-G stereo headphone

driver dedicated to high-performance audio, high

power efficiency and space-constrained

TOPVIEW

GAIN

INR-

INR+

INL+

VOUTR

CMS

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.

PVSS

HPVDD

AGND

VOUTL

INL-

AVDD

Balls are undemeath

Features

 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

July 2020

DocID026036 Rev 2

1/37

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...37

中文翻译

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与A22H165相关器件

型号	品牌	获取价格	描述	数据表
A22H165M	STMICROELECTRONICS	获取价格	高性能G类立体声耳机放大器，带I2C音量控制
A22-HA	OMRON	获取价格	Install in 22-dia. or 25-dia. Panel Cutout
A22-HA-01A	OMRON	获取价格	Pushbutton Switch, SPST, Latched, Screw Terminal, Panel Mount
A22-HA-01M	OMRON	获取价格	Pushbutton Switch, SPST, Momentary, Screw Terminal, Panel Mount
A22-HA-02A	OMRON	获取价格	Pushbutton Switch, DPST, Latched, Screw Terminal, Panel Mount
A22-HA-02M	OMRON	获取价格	Pushbutton Switch, DPST, Momentary, Screw Terminal, Panel Mount
A22-HA-10A	OMRON	获取价格	Pushbutton Switch, SPST, Latched, Screw Terminal, Panel Mount
A22-HA-10M	OMRON	获取价格	Pushbutton Switch, SPST, Momentary, Screw Terminal, Panel Mount
A22-HA-11A	OMRON	获取价格	Pushbutton Switch, SPST, Latched, Screw Terminal, Panel Mount
A22-HA-11M	OMRON	获取价格	Pushbutton Switch, SPST, Momentary, Screw Terminal, Panel Mount

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