YOUDA INTEGRATED CIRCUIT
YD8227
LOW FREQUENCY POWER AMPLIFIER—YD8227
DESCRIPTION
The YD8227P is the audio power amplifier with built-in two channels developed for portable radio cassette
tape recorder with power ON/OFF switch.
FUNCTIONS
*Wide operating supply voltage: Vcc=5�½�12V;
*Low quiescent supply current (I
CC
=21mA, typical,at Vcc=9V, Vi=0);
*Output power: Po=2.50W/CH at Vcc=9V, R
L
=4Ω, f=1kHz, THD=10%;
*Soft clip;
*Built-in Thermal shut-down protection circuit;
*Stand-by switch.
BLOCK DIAGRAM
12
Vcc1
-
+
+
-
Vstb
1
2
3
TAB
Pre-GND
4
11
10
TAB
9
8
7
5
6
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
2006-06-28
YOUDA [ WUXI YOUDA ELECTRONICS CO.,LTD ]
