IF Signal Processing Circuit
Ordering number: EN5177
Monolithic Linear IC
LA7583 IF Signal Processing Circuit (A C PLL VIF + SIF) for TVs and VCRs
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Description
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 canceller that suppresses Nyquist buzz has been built into the LA7583 in order to provide excellent sound quality.
Package Dimensions
unit : mm
3067-DIP24S
[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 Equalizer amplifier AGC lag lead filter [1st SIF] Preamplifier [SIF] Limiter amplifier [mute] Audio mute
. . . . . .
. Multinetwork PLL . AFT . Video driver . 1st SIF detector . AQT detector (gyrator) . AV mute
. BNC . IFAGC . AGC detector . J/U switch
. FAGC . Buzz canceller . Built-in AGC filter
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
83095HA(II) No.5177-1/15
LA7583
Specifications
Maximum Ratings at Ta = 25 °C
Parameter Ma...
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