NTE1557
Integrated Circuit
FM/AM IF System
Description:
The NTE1557 is a monolithic integrated circuit in a 16鈥揕ead DIP type package developed for the radio
cassette tape recorder included AM/FM IF amplifier and detector.
Functions:
D
AM Section:
IF Amplifier with AGC Detector
D
Voltage Regulator for RF External Circuit
D
FM Section:
IF Amplifier
Quadrature Detector
Post Amplifier
Signal Meter Driver Circuit
Features:
D
Suitable for Radio Cassette and Home Stereo
D
Wide Operating Supply Voltage Range (3.0V to 14V)
D
Low Quiescent Circuit Current
D
AM Section
D
Simplified Input Circuit IFT (Ceramic Filter Type)
RF AGC Available
D
FM Section:
High Limiting Sensitivity (33dB碌, Typ)
Low Residual Noise (45dB at V
i
= 鈥?0dB碌)
Small Side Peak of Detuned Output Voltage
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600mW
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +70擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
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2
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