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Wuxi Youda electronics |
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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=5~12V;
*Low quiescent supply current (ICC=21mA, typical,at Vcc=9V, Vi=0);
*Output power: Po=2.50W/CH at Vcc=9V, RL=4Ω, f=1kHz, THD=10%;
*Soft clip;
*Built-in Thermal shut-down protection circuit;
*Stand-by switch.
BLOCK DIAGRAM
12 11
Vcc1
10
Vstb
1
2
3
TAB 9 8
-
+
+
-
Pre-GND
TAB 4 5
7
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
DataSheet4 U .com
www.DataSheet4U.com
YOUDA INTEGRATED CIRCUIT
YD8227
ABSOLUTE MAXIMUM RATINGS(Tamb=25℃)
PARAMETER
Supply Voltage
Output Peak Current
Power Dissipation
(80*60*1.2mm3 PCB)
Operating Temperature
Storage Temperature
SYMBOL
VCC
Iop
PD
Topr
Tstg
VALUE
20
2.5
4.0
-25 to +75
-55 to +150
UNIT
V
A
W
℃
℃
ELECTRICAL CHARATERISTICS
(VCC=9V, Rg=600Ω, f=1kHz, Tamb=25℃, all voltage referenced to GND unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Quiescent Current
Output Power
Total Harmonic
Distortion
Voltage Gain
Input Resistance
Output Noise Voltage
Iccq
Po
THD
Gv
Zi
VN0
Vin=0
THD=10%, RL=4Ω
THD=10%, RL=3Ω
Po=0.4W/CH
Rf=120Ω VO=0.775V
Rf=0Ω VO=0.775V
f=1kHz
Rg=10kΩ
BPF=20Hz~20KHz
21 45 mA
2.0 2.5
3.0
W
0.2 1.0
%
43 45 47
56.5
dB
30 kΩ
0.3 1.0 mV
Ripple Rejection Ratio
RR
f=100Hz Rg=600Ω
52 dB
Cross Talk
Input Offset Voltage
Standby Current
CT
V7-8
ISBY
Vo=0.775V
50 dB
30 60 mV
1 μA
WuXi YouDa Electronics Co., Ltd
DataSheet4 U .com
2 of 4
Website: www.e-youda.com
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