YD7738 Datasheet, PDF (2/4 Pages) Wuxi Youda electronics Co.,LTD – PREAMPLIFIER FOR PLAY OR RECORDER

YOUDA INTEGRATED CIRCUIT
YD7738
PIN DESCRIPTION
PIN
Name
Description
PIN
1
INALC
ALC input
9
2
OUTBUF
Buffer amplifierinput
10
Negative feed back of
3
NFBUF
11
Buffer amplifier
4
NC
NC
12
5
INP
Power amplifier input
13
Negative feed back of
6
NFP
14
Power amplifier
7
GNDP
Power GND
15
8
OUTP
Power amplifier output
16
Name
BS
Vcc
FIL
FIL
OUTPRE
NFPRE
INPRE
GNDPRE
Description
BS
Supply voltage
Filter input
Filter input
Pre-amplifier output
Negative feed back of
Pre-amplifier
Pre-amplifier input
Pre-GND
ABSOLUTE MAXIMUM RATINGS (Tamb=25℃)
PARAMETER
Supply Voltage
Output Current
Power Dissipation
Operating Temperature
Storage Temperature
SYMBOL
Vcc
Iop
PD
Tamb
Tstg
VALUE
14
1.5
1.2
-20 to+75
-55 to 150
UNIT
V
A
W
℃
℃
ELECTRICAL CHARACTERISTICS
（Unless otherwise specified, Vcc=6V, f=1kHz, Tamb=25℃）
PARAMETER
SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Total
Quiescent Current
Iccq
Pre-Amplifier
Vcc=3.5V
7.5
Vcc=6V
11
mA
35
mA
Open Loop Voltage Gain
Closed Loop Voltage Gain
Max. Output Voltage
Input Impedance
Equivalent Input Noise
Voltage
Gvo1
Gv1
VOM1
Zi
VNO1
THD≤1.0%
Vo=0.5Vrms
Rg=0
55
70
dB
40
dB
0.7
V
30
kΩ
1.4
2.5 μV
WuXi YouDa Electronics Co., Ltd
2 of 4
Website: www.e-youda.com