YOUDA INTEGRATED CIRCUIT
YD2025A
2.4W STEREO AUDIO POWER AMP——YD2025A
DESCRIPTION
The YD2025A is a monolithic integrated circuit consisting of a 2-channel power amplifier. It is suitable for
stereo and bridge amplifier application of radio cassette tape recorder.
FEATURES
*High output power
Stereo: Po=2.4W(Typ) at Vcc=9V,R
L
=4Ω,THD=10%
Bridge: Po=4.7W(Typ) at Vcc=9V,R
L
=8Ω,THD=10%
*Small shock noise at the time of power on/off due to a built-in muting circuit
*Good ripple rejection due to a built-in ripple filter
*Good channel separation
*Soft tone at the time of output saturation
*Closed loop voltage gain fixed 45dB (Bridge: 51dB) but availability with external resistor added
*Minimum number of external parts required
BLOCK DIAGRAM
16
Vcc
-
+
15
14
13
GND
12
11
10
9
Pre-GND
5k
50
+
-
GND
1
2
3
4
5
6
7
WuXi YouDa Electronics Co., Ltd
Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel: 86-510-85205117
86-510-85205106
Fax: 86-510-85205110
Website: www.e-youda.com
SHENZHEN OFFICE Tel： 86-755-83740369
Fax： 86-755-83741418
Ver 5.0
1 of 4
2006-06-18
RIPPLE FILTER
8
YOUDA [ WUXI YOUDA ELECTRONICS CO.,LTD ]
