YD7000 Datasheet, PDF (1/4 Pages) Weida Semiconductor, Inc. – POWER AMPLIFIER FOR HEADPHONE STEREOS

YOUDA INTEGRATED CIRCUIT
YD7000
POWER AMPLIFIER
FOR HEADPHONE STEREOS—YD7000
DESCRIPTION
The YD7000 is a low power audio amplifier integrated circuit for headphone. It provides differential speaker
outputs to maximize output swing at low supply voltages.
FEATURES
*Low current consumption.
*16Ω load drive capability.
*Excellent reduced voltage characteristics.
*Excellent power supply ripple rejection.
*Minimum number of external pares required (no input capacitor, feedback capacitor required).
*Applicable to radio sets because of high voltage gain.
*Less harmonic interference in radio band.
*On-chip power switch function, muting function.
BLOCK DIAGRAM
MUTE
SWITCH
10
POWER
OUT1 GND OUT2
9
8
7
MUTE
CIRCUIT
Vcc
6
BIAS
Amp1
Amp2
POWER
SWITCH
1
2
3
4
5
POWER
IN1 PRE IN2
REF
SWITCH
GND
WuXi YouDa Electronics Co., Ltd
Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel: [phone] Fax: [phone] Website: www.e-youda.com
SHENZHEN OFFICE
Tel： 86-755-83740369 Fax： 86-755-83741418
Ver 5.0
1 of 4
2006-06-28