YOUDA INTEGRATED CIRCUIT
YD7496L
2W+2W AMPLIFIER
WITH DC VOLUME CONTROL--YD7496L
DESCRIPTION
The YD7496L is a stereo 2W+2W class AB power amplifier assembled in the @ PowerDIP20 package,
specially designed for high quality sound, TV and Monitor applications.
Features of the YD7496lL include linear volume control, Stand-by and mute functions.
FEATURES
*2W+2W OUTPUT POWER R
L
8 @ THD=10% ,Vcc14V.
*ST-BY AND MUTE FUNCTION.
*LOW TURN-ON TURN-OFF POP NOISE.
*LINER VOLUME CONTROL DC COUPLED WITH POWER OP. AMP.
*NO BOUCHEROT CELL.
*NO ST-BY RC INPUT NETWORK.
*SINGLE SUPPLY RANGING UP TO 15V
*SHORT CIRCUIT PROTECTION.
*THERMAL OVERLOAD PROTECTION.
*INTERNALLY FIXED GAIN.
*SOFT CLIPPING.
*VARIABLE OUTPUT AFTER VOLUME CONTROL CIRCUIT.
*POWERDIP 20 PACKAGE.
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 5 2006-06-28
YOUDA INTEGRATED CIRCUIT
YD7496L
BLOCK DIAGRAM
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
20
19
GND
GND
GND
IN1
Voc1
VOLUME
NC
Voc2
IN2
30k
1k
30k
30k
30k
1k
GND
_
+
_
+
STBY
OUT2
SVC
STBY/MUTE
Volume
GND
Vcc
OUT2
GND
Vcc
MUTE
GND
Volume
ABSOLUTE MAXIMUM RATINGS
(Tamb=25)
PARAMETER SYMBOL
VALUE
UNIT
DC Supply Voltage
Vcc
26
V
Maximum Input Voltage
Vin
8 Vp-p
Volume CTRL DC Voltage
V6
7
V
Output Peak Current(internally limited)
Iop
1.0
A
No Heat Sink
2
Power
Dissipation
Tc=60
P
D
6.0
W
Operating Temperature
Topr
-20+70
Storage Temperature
Tstg
-40+150
MUTE STAND-BY TRUTH TABLE
MUTE ST-BY OPERATING
CONDITION
H H
STANDBY
L H
STANDBY
H L
MUTE
L L
PLAY
WuXi YouDa Electronics Co., Ltd 2 of 5 Website: www.e-youda.com
YOUDA INTEGRATED CIRCUIT
YD7496L
ELECTRICAL CHARACTERISTICS
(Vcc=14V,R
L
=8, Rg=50, Tamb=25,Unless otherwise specified.)
Parameter Symbol
Test
Condition Min.
Typ.
Max.
Unit
Supply
Range
Vcc
10 18 V
Quiescent Current
Iccq
25
50
mA
Input
Offset
Voltage
Vo
7 mV
THD10 1.6
2
Output Power
Po
THD1
1.3
W
Total Harmonic Distortion
THD
Po1W
0.4
%
Closed Loop Gain
Gv
Vol Ctrl>4.5V
28.5
30
31.5
dB
Attenuation
at Minimum Volume
Gmin Vol
Ctrl<0.5V -80
dB
Monitor Out Gain
Gvc
Vol Ctrl>4.5V
-1.5
0
1.5
dB
Frequency
Response
BW
0.6 MHz
Input Resistance
Rin
22.5
30
k
F=20Hz22kHz,
max volume
500
800
V
F=20Hz22kHz,
max attenuation
100
250
V
Total Output Noise
EN
F=20Hz22kHz,mute 60 150 V
Max volume,
Csvr=470,Vr=1V
35 39 dB
Supply Voltage Rejection
SVR
Max attenuation,
Csvr=470,Vr=1V
55 65 dB
Thermal Muting
T
M
150
Thermal Shut-down
Ts
160
MUTE STAND-BY & INPUT SELECTION FUNCTIONS
Stand-by ON Threshold
V
ST
ON
3.5
V
Stand-by OFF Threshold
V
ST
OFF
1.5
V
Mute ON Threshold
V
M
ON
3.5
V
Mute OFF Threshold
V
M
OFF
1.5
V
Quiescent Current @ Stand-by
Iccqstby
0.6
1
mA
Mute Attenuation
Gmute
-50
-65
dB
Stand by on V
ST-BY
=5V
V
MUTE
=5V
80
Stand-by bias current
Istby
Play or Mute
-20
-5
A
Mute
1
5
Mute bias current
Imute
Play
0.2
2
A
WuXi YouDa Electronics Co., Ltd 3 of 5 Website: www.e-youda.com
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