LA7583 Datasheet (Sanyo) - IF Signal Processing Circuit

LA7583, IF Signal Processing Circuit

Pin 1 is an audio FM output pin.

A 100 Ω resistor is connected in series with the emitter follower.

(1) Monaural applications CR are used to form a de-emphasis cicuit externally.

t = CR1 (2) Audio multiplexing applications Depending on the audio multiplexing decoder application, the input impedance

Ordering number: EN5177 Monolithic Linear IC LA7583 IF Signal Processing Circuit (A C PLL VIF + SIF) for TVs and VCRs 2 Overview The LA7583 is a VIF + SIF IC that requires no adjustments.

In order to eliminate the need for adjustments in the VIF block, a multi-network PLL has been developed and adopted for video detection.

In the SIF block, adjustments were eliminated by using gyrator technology in the FM quadrature detector.

In addition to eliminating the need for adjustments, a buzz cancell

LA7583 Features

* . Elimination of VCO, AFT, and SIF coils eliminates the need adjustments. . for A variety of built-in filters. . Built-in buzz canceller results in excellent audio characteristics. Note: A2C Automatic Adjustment Control AQT Automatic Quadrature Tuning SANYO : DIP24S Functions [VIF] VIF amplifier