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Sanyo - IF Signal Processing Circuit (A2C PLL VIF + SIF) for TVs and VCRs

Numéro de référence LA7583
Description IF Signal Processing Circuit (A2C PLL VIF + SIF) for TVs and VCRs
Fabricant Sanyo 
Logo Sanyo 





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LA7583 fiche technique
Ordering number: EN5177
Monolithic Linear IC
LA7583
IF Signal Processing Circuit
(A2C PLL VIF + SIF) for TVs and VCRs
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
for adjustments.
. A variety of built-in filters.
. Built-in buzz canceller results in excellent audio
characteristics.
Note: A2C Automatic Adjustment Control
AQT Automatic Quadrature Tuning
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
SANYO : DIP24S
. 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

PagesPages 15
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