YOUDA INTEGRATED CIRCUIT
YD22241
DUAL EQUALIZER AMPLIFIER WITH ALC
---- YD22241
DESCRIPTION
The YD22241 is a monolithic integrated circuit consisting of dual equalizer amplifier with ALC. It is suitable
for stereo radio cassette tape recorder.
FEATURES
*Dual equalizer amplifier with built-in ALC circuit
*Low noise V
NI
=1.0V (typ.)
*High open loop voltage gain: Gvo=80dB (typ.)
*Power voltage range: 4.514V
*Good ALC response balance between channels
*Not necessary the diode of transistor for ALC
*Built in power supply muting circuit
*Minimum number of external parts required
*Package: SIP-9
BLOCK DIAGRAM
CONT
1
ALC
2
ALC
3
ALC
4
-
5
+
6
-
7
+
8
9
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 3 2006-07-30
YOUDA INTEGRATED CIRCUIT
YD22241
ABSOLUTE MAXIMUM RATINGS
(Tamb=25)
PARAMETER
SYMBOL
VALUE
UNIT
Supply Voltage
V
CC
16 V
Power Dissipation
P
D
550 mW
Operating Temperature
Topr
-20+75
Storage Temperature
Tstg
-40+125
ELECTRICAL CHARACTERISTICS
(Tamb=25, Vcc=9V, f=1kHz, Unless otherwise specified)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
Quiescent Current
Iccq
Vi=0
1.5
3.5
4.5
mA
Open Loop Voltage Gain
Gvo
V
O
=0.3V 70
80
dB
Closed Loop Voltage Gain
Gvc
V
O
=0.3V 45
48
50
dB
Output Voltage
Vo
THD=1%
0.6
1.2
V
Total Harmonic Distortion
THD
V
O
=0.3V
0.1
0.3
%
Input Noise Voltage
V
Ni
Rg=2.2k,
BW=20Hz20kHz
1.0
2.0
V
Input Resistance
Zi
15
25
45
k
ALC Range
V
ALC
Rg=3.9k, THD=10%
40 45 dB
ALC Balance
Gv
Vin=1mV
0
2.5
dB
WuXi YouDa Electronics Co., Ltd 2 of 3 Website: www.e-youda.com
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