Lm3189 Fm If System - National Semiconductor

The LM3189N is a monolithic integrated circuit that provides all the functions of a comprehensive FM IF system. The block diagram of the LM3189N includes a three stage FM IF Amplifier limiter configuration with level detectors for each stage, a doubly balanced quadrature FM detector and an Audio Amplifier that features the optional use of a muting (squelch) circuit. The advanced circuit design of the IF system includes desir- able deluxe features such as programmable delayed AGC for the RF Tuner an AFC drive circuit, and an output signal to drive a tuning meter and/or provide stereo switching log- ic. In addition, internal power supply Regulators maintain a nearly constant current drain over the voltage supply range of a8.5V to a16V. The LM3189N is ideal for high fidelity operation. Distortion in an LM3189N FM IF system is primarily a function of the phase linearity characteristic of the outboard detector coil. The LM3189N has all the features of the LM3089N plus additions. By National Semiconductor Corporation
LM3189 's PackagesLM3189 's pdf datasheet
LM3189N




LM3189 Pinout, Pinouts
LM3189 pinout,Pin out
This is one package pinout of LM3189,If you need more pinouts please download LM3189's pdf datasheet.

LM3189 Application circuits
LM3189 circuits
This is one application circuit of LM3189,If you need more circuits,please download LM3189's pdf datasheet.


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