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Datasheet: YD8602 (No company)

LOW POWER AUDIO AMPLIFIER

 

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No company
YOUDA INTEGRATED CIRCUIT
YD8602
LOW POWER AUDIO AMPLIFIER--YD8602
DESCRIPTION
The YD8602 is the audio power amplifier available for low voltage. It supplies differential outputs for
maximizing output swing at low voltages.
FEATURES
*Wide operating supply voltage: Vcc=2~6V;
*Low quiescent supply current (Icc=2.7mA, typ.);
*Medium output power
Po=250mW at Vcc=6V, R
L
=32, THD=10%;
*Load impedance range (8to 100);
*Low distortion;
*Mute function (Icc=65A, typ.);
*Minimum number of external parts required.
BLOCK DIAGRAM
2
7
50k
4k
4k
50k
125k
+
_
+
_
1
3
4
5
6
8
BIAS
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 2006-07-30
YOUDA INTEGRATED CIRCUIT
YD8602
ABSOLUTE MAXIMUM RATINGS
(Tamb=25)
PARAMETER SYMBOL
VALUE
UNIT
Supply Voltage
Vcc
8 V
Output Current
Io
250 mA
Maximum Input Voltage
Vi
-1.0~Vcc+1.0 V
Junction Temperature
Tj
-55+150
RECOMMENDED OPERATION CONDITIONS
(Tamb=25)
PARAMETER SYMBOL
MIN
TYP
MAX
UNIT
Supply Voltage
Vcc
2.0
4.2
6
V
Load Impedance
R
L
8
32
100
Peak Load Current
Iop
100
200
mA
Differential Gain(5kHz Bandwidth)
Gv
0
30
46
dB
Voltage at Mute
Vi(mute)
0
Vcc
V
Ambient Temperature
Tamb
-20
+70
ELECTRICAL CHARACTERISTICS
(Tamb=25, Vcc=6V, Unless otherwise specified)
PARAMETER SYMBOL TEST
CONDITIONS MIN
TYP
MAX
UNIT
Vcc=3.0V, Mute=0.8V
2.7
4.0
mA
Vcc=16.0, Mute=0.8V
3.3
5.0
mA
Operating Current
Iccq
Vcc=3.0V, Mute=2.0V
65
100
A
Vcc=3.0V, R
L
=16, Rf=75k 1.0 1.15 1.25
Output DC Voltage
Vo
Vcc=6.0V, R
L
=16, Rf=75k 2.65
V
Output Offset Voltage
Vo Vcc=6.0V,
Rf=75k, R
L
=32
-30 0 +30
mV
Output High Level
V
OH
2.0VVcc6V,
Io=-75mA
Vcc
-1.0
V
Output Low Level
V
OL
2.0VVcc6V,
lout=75mA
0.16 V
Input Bias Current
I
IB
-100
-200
nA
Ri
Pin2
100 150 220 k
Equivalent Resistance
R
F
Pin8
18 25 40 k



WuXi YouDa Electronics Co., Ltd 2 of 5 Website: www.e-youda.com
YOUDA INTEGRATED CIRCUIT
YD8602

PARAMETER SYMBOL
TEST
CONDITIONS MIN
TYP
MAX
UNIT
Open Loop Gain of
Amp 1
Gvo
80
dB
Open Loop Gain of
Amp 2
Gv f=1.0kHz,
R
L
=32 -0.35
0
0.35
dB
Vcc=3.0V, R
L
=6, THD10% 55
Output Power
Po
Vcc=6.0V, R
L
=32, HD10% 250
mW
Vcc=6.0V, R
L
=32, Po=125mW
0.5
1.0
Total Harmonic
Distortion
THD
Vcc3.0V, R
L
=8, Po=20mW
0.5
%
Gain Bandwidth
BW
1.5
MHz
Power Supply
rejection
RR Vcc=6.0V,
Vcc=3.0V, fr=100Hz
50
dB
Muting G
MUT
Mute=2.0V, V
CD
=2.0V ,
1.0kHzf20kHz,
70 dB





















WuXi YouDa Electronics Co., Ltd 3 of 5 Website: www.e-youda.com
YOUDA INTEGRATED CIRCUIT
YD8602
APPLICATION CIRCUIT
125k
50k
4k
4k
BIAS
1
2
3.0k
+
10
+
10
+
4.7
5
2
1
4
3
6
7
8
75k
SPEAKER
AUDIO IN
Ci
Ri
Vin+
Vin-
FC
GND
CD
CD
Vo+
Vo-
Vcc
Rf
50k
Vcc
0.1
+
100



















WuXi YouDa Electronics Co., Ltd 4 of 5 Website: www.e-youda.com
YOUDA INTEGRATED CIRCUIT
YD8602


















WuXi YouDa Electronics Co., Ltd 5 of 5 Website: www.e-youda.com
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