
NTE1441
Integrated Circuit
FM IF Amplifier, Detector
Function:
IF Amplification, Limiter
Quadrature Detector
AF Preamplifier
Muting at Weak Input
Muting at the Detuning
Signal Meter Drive Output
AFC Tuning Meter Drive Output
Delay AGC Output
Inverting Circuit for Muting Drive Voltage
IF Amplifier Stop Circuit
Features:
High Limiting Sensitivity: 18
μ
V Typ.
Low Distortion: 0.05% Typ Determined by the Linearity of Phase Characteristics in Phase
Shifting Circuit
High Demodulation Output: 330mV
rms
Typ
High S/N Ratio: 78.5dB Typ
Muting at Detuning with Little Shock Noise
Single Meter Drive Output Proportional with the Input Signal Level dB
Detuning Muting Band having Good Symmetrics
Tuning Meter Driving Output having Wide Swing Width
Delay AGC Drive Output for Front End
Constant Voltage Circuit is Built–In: Operating Voltage Range = 9V to 14V
Muting Characteristics Between Adjacent Stations are Distinguished
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Maximum Supply Voltage (Pin11), V
CC
max
Maximum Input Voltage (Pin1–2), V
I
Maximum Supply Current (Pin11), I
CC
Maximum Flow–In Current
Pin15, I
15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin16, I
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Flow–Out Current
Pin10, I
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin12, I
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin13, I
13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin15, I
15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Power Dissipation, P
D
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
1V
P–P
40mA
1mA
1mA
2mA
2mA
2mA
2mA
650mW
–20
°
to +70
°
C
–40
°
to +125
°
C
Recommended Operating Condition:
(T
A
= +25
°
C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12V