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LA7425中文资料三洋数据手册PDF规格书

PDF无图
厂商型号

LA7425

功能描述

NTSC Format Single-Chip Processing IC for VHS VCR Products

文件大小

225.63 Kbytes

页面数量

7

生产厂商

SANYO

中文名称

三洋

网址

网址

数据手册

下载地址一下载地址二

更新时间

2026-2-10 13:28:00

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LA7425规格书详情

Overview

The LA7425 is a single-chip video signal processing IC for use in VHS format VCR products. The number of required adjustments has been reduced to a single adjustment by IC chip internal trimming. The incorporation of a playback equalizer and other circuits on chip provides a significant reduction in external components and thus significantly reduces the cost of manufacturing the signal processing printed circuit board. This product can also support simplified S-VHS playback, which is becoming a standard feature in VCR products in the Japanese market.

特性 Features

• Only one adjustment point (comb filter phase adjustment) (The AGC, carrier, deviation and PB-Y level are adjustment free.) (If an LA7411/16 is used as the head amplifier, the Y/C record current will also be adjustment free.)

• Simplified S-VHS playback support

— Built-in S-VHS discrimination circuit

— Built-in equalizer switch

— Automatic demodulator gain switching

— Internal automatic de-emphasis characteristics switching

• Only a minimal number of external components required (85 components: This corresponds to a 38 reduction over previous Sanyo products ... CNR and SQPB not handled, and REC EQ not included.) Components newly incorporated on chip:

— Playback equalizer (include chroma trap), limiter balance filter, capacitor and resistor for detail enhancer, record chroma 7.8 MHz trap, playback chroma LPF, ACC filter

• High performance/multifunctionality

Linear phase type picture controller Double high-pass noise canceller, high-speed AFC, DCC New built-in functions

— FM AGC, synchronization detection circuit, linear control circuit for high-pass noise canceller, playback mode Y/C separator output, chroma noise canceller

• Single CCD system

The LA7425 supports the following functions with the addition of only a single CCD (1H delay) device: comb filter, YNR, DOC and chroma crosstalk cancellation.

Thus the cost of external components is lowered.

• Full HQ support (YNR, CNR, detail enhancer and WCL up)

产品属性

  • 型号:

    LA7425

  • 制造商:

    SANYO

  • 制造商全称:

    Sanyo Semicon Device

  • 功能描述:

    NTSC Format Single-Chip Processing IC for VHS VCR Products

供应商 型号 品牌 批号 封装 库存 备注 价格
SANYO/三洋
24+
DIP
9600
原装现货,优势供应,支持实单!
询价
SANYO/三洋
2402+
QFN5*5
8324
原装正品!实单价优!
询价
SANYO/三洋
2026+
DIP
30063
全新原装现货,可出样品,可开增值税发票
询价
SANYO/三洋
23+
13000
原厂授权一级代理,专业海外优势订货,价格优势、品种
询价
25+23+
QFN
9802
绝对原装正品全新进口深圳现货
询价
SANYO/三洋
2447
DIP
100500
一级代理专营品牌!原装正品,优势现货,长期排单到货
询价
SANYO/三洋
23+
QFN
50000
全新原装正品现货,支持订货
询价
SANYO/三洋
2026+
QFN
54658
百分百原装现货 实单必成
询价
SANYO
NA
8560
一级代理 原装正品假一罚十价格优势长期供货
询价
SAY
05+
原厂原装
2266
只做全新原装真实现货供应
询价