NTE NTE1242 Datasheet
NTE1242
Integrated Circuit
FM/AM IF Amp, AM Converter
Features:
D Separate AM and FM Circuitry
D Ceramic Filters Can be Used.
D Same AM and FM Detection Output Level
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V
Circuit Voltages, V
Supply Current, I
Power Dissipation (T
Operating Ambient Temperature Range, T
Storage Temperature Range, T
Electrical Characteristics: (VCC = 8V, TA = +25°C unless otherwise specified)
CC
, V
8–7
CC
= +75°C), P
A
15–6
D
opr
stg
9.6V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.4V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
40mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
400mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–20° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameter Symbol Test Conditions Min Typ Max Unit
Total Circuit Current I
Detector Output Voltage
AM–IF
FM–IF Vi = 33dBµV, fm = 400Hz, fd = 22.5kHz,
Circuit Voltages V
V
V
tot
V
O
3–2
7–6
12–4
Vi = 22dBµV, f = 1MHz, fm = 400Hz, 30% MOD 2.4 6.0 9.5 mV
f = 10.7MHz
V10 = 1.0V – – 30 mV
V10 = 1.4V – 66 – mV
V
4–8
V
4–9
V
15–4
15 24 34 mA
3.8 7.0 10.0 mV
– 3.0 – V
– 1.7 – V
– 120 – mV
– 240 – mV
– 62 – mV
Pin Connection Diagram
FM IF Output
GND
st
IF Output
1
V
2nd IF Input
GND
Bypass
nd
IF Output
2
1
2
3
4
CC
5
6
7
8 9
16 9
Bypass
16
OSC Feedback
15
OSC Tank
14
AM Input (Converter)
13
12
Converter Output
nd
11
2
IF (AM) Input
10
AGC Bypass
2nd IF (AM) Output
.245
(6.22)
Min
.260 (6.6) Max
18
.785 (19.9) Max
.300 (7.62)
.200 (5.08)
Max
.100 (2.54)
.700 (17.7)
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