TS4621ML High-performance class-G stereo headphone amplifier with I²C volume control

The TS4621ML 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 TS4621ML is designed to be used with an output serial resistor. It ensures unconditional stability over a wide range of capacitive loads.

The TS4621ML is packaged in a tiny 16-bump flip-chip package with a pitch of 400 μm

技术特性

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"
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

应用领域

Cellular phones, smartphones
Mobile internet devices
PMP/MP3 players
Portable CD/DVD players

管脚定义图

TS4621ML 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
TS4621MLEIJT	Active		1000	Flip-Chip 400u	Tape And Reel		TS4621MLEIJT

DATASHEET

描述	版本	大小
TS4621ML :DS9034: High-performance class-G stereo headphone amplifier	1	2522KB