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NTE709 Datasheet(PDF) 2 Page - NTE Electronics

Part No. NTE709
Description  Integrated Circuit TV/FM Sound IF Amplifier
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Maker  NTE [NTE Electronics]
Homepage  http://www.nteinc.com
Logo NTE - NTE Electronics

NTE709 Datasheet(HTML) 2 Page - NTE Electronics

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Static Electrical Characteristics (Cont’d): (VCC = 12V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Detector Output Resistance
R1
200
IF Input Resistance
R4
5.0
k
IF Output Resistance
R10
60
Detector Input Resistance
R12
70
k
De–Emphasis Resistance
R14
6
9
12
k
IF Input Capacitance
C4
11
pF
Detector Input Capacitance
C12
2.7
pF
Dynamic Characteristics: (VCC = 12V, TA = +25°C, fo = 10.7MHz, fm = 400Hz, ∆f = ±75kHz,
Peak Separation = 550kHz unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Amplifier Voltage Gain
Ae
Vin ≤ 300µVrms
53
dB
Amplifier Output Voltage
Vout
Vin = 10mVrms
1.45
VP–P
Input Limiting Threshold
VTH
Note 1
400
800
µVrms
Recovered Audio Output
Vout
V12 = 60mVrms
500
mVrms
Total Harmonic Distortion
THD
100% FM Modulation
1.0
%
AM Rejection
AMR
Vin = 10mVrms, Note 2
40
dB
Note 1. The input limiting threshold is the FM input voltage for a recovered audio output which is 3dB
less than the recovered audio for an FM input voltage of 200mVrms.
Note 2. The amplitude modulation rejection is determined by:
AMRdB = 20 log Vout for 100% FM Vin / Vout for 30% AM Vin
VCC
1
2
3
4
Detector Output
Reference
N.C.
IF Input
5
Decoupling
6
IF Input Ref
7
GND
14
13
12
11
De–Emphasis
Det Input
Test Point
10 Amplifier Output
9
Amplifier Low Output
8
N.C.
Pin Connection Diagram


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