The Part Number is HA1137W.
The function of this semiconductor is FM IF System.
Package: DIP 16 Pin Type
Manufacturer: Hitachi
Preview images :
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Description
The Hitachi HA1137W is a monolithic integrated circuit developed for the FM IF system in a Hi-Fi stereo tuner set. It includes all those functions necessary for a FM IF housed in a 16-lead, dual-in-line plastic package. The block diagram shows that the input signal is fed to a three-stage FM IF amplifier/limiter configuration and to a three-stage detector for a tuning meter driver. […]
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Features
1. IF Amplifier
2. Quadrature Detector
3. Low-noise AF Preamplifier
3. Tuning Meter Circuit
