UTC8227
DESCRIPTION
LI NEAR I NTEGRATED CI RCUI T
The UTC8227 is the audio power amplifier with built-in two channel developed for portable radio cassette tape recorder with power ON/OFF switch.
FEATURES
- Wide operating supply voltage: Vcc=5~12V
- Low quiescent supply current (Icc=21m A,typical,at Vcc=9V ,Vi=0)
- Output power Po=2.50W/CH at Vcc=9V,RL=4ohm ,f=1k Hz,Thd=10%
- Soft Clip
- Built-in Thermal shut-down protection circuit
- Stand-by Switch
HDIP-12
TEST CIRCUIT
SW1 1000µF 100µF Vcc2
Vcc1
12 3
Boot strap 1
100µF 1000µF
Input 1
NF1
47µF 120Ω
Output 1
5 9
0.015µF
45Ω 30kΩ
Ripple
47µF
Input 2 NF2
100µF
10 11
Boot strap 2
1000µF
Output 2
47µF 120Ω
0.015µF
45Ω...
