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零件编号
产品描述 (功能)
YD7738 查看數據表(PDF) - Wuxi Youda electronics Co.,LTD
零件编号
产品描述 (功能)
生产厂家
YD7738
PREAMPLIFIER FOR PLAY OR RECORDER
Wuxi Youda electronics Co.,LTD
YD7738 Datasheet PDF : 4 Pages
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4
YOUDA INTEGRATED CIRCUIT
YD7738
Pre Amplifier + Buffer Amplifier
Pre-Amp: Gv=40dB
Closed Loop Voltage Gain
Gv2
60
dB
Buff-Amp: Gv=20dB
Max. Output Voltage
Vo2
THD=3.0%
1.5 1.7
V
Equivalent Output Noise
Voltage
ALC Effect
ALC Range
V
NO2
ALC1
ALC2
Rg=0, Gv2=60dB
V
IN
=
-60dBm
~
-20dBm
THD
<
1.0%
1.2 2.5 mV
2
dB
60
dB
Power Amplifier
Open Loop Voltage Gain
Gvo3
60
70
dB
Closed Loop Voltage Gain
Gv3
40
dB
R
L
=4
Ω
,THD=10%
0.8
0.96
Maximum Out Power
P
OM
Vcc=9V,R
L
=4
Ω
,
THD=10%
W
2.0
Output Noise voltage
V
NO3
Rg=0,Gv=40dB
0.3
mV
APPLICATION CIRCUIT
RADIO
ATT
+
22μ
MIC
TR
220Ω
S4
Vcc
12k
0.01μ
+
27k
0.01μ
220μ
S6
330k
RT
+S
0.47μ
S
S1
S2
560p
330μ 100μ
+
++
3.3μ
16 15 14 13 12 11 10 9
YD7738
10k
++
47μ 3.3μ
R/P
HEAD
S3
12345 67 8
390k
BIAS
REC
+
47μ
+
560p
1000p
1k 330Ω
51k
6.2k
Rf
680p
+ 1000μSPEAKER
RECORDING EQ
1μ 5.6k
S5
+
0.022μ
10μ
+
47μ
4Ω
0.082μ
WuXi YouDa Electronics Co., Ltd
3 of 4
Website: www.e-youda.com
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