Datenblatt-Suchmaschine für elektronische Bauteile |
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TDA9725 Datenblatt(PDF) 5 Page - NXP Semiconductors |
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TDA9725 Datenblatt(HTML) 5 Page - NXP Semiconductors |
5 / 44 page 1996 Oct 14 5 Philips Semiconductors Product specification Y/C automatic adjustment processor (VHS standard) TDA9725 Table 1 Explanation of symbols in Figs 1 and 2 PINNING SYMBOL DESCRIPTION AGCKP1 mode with shortened key pulse for AGC BGP burst gate pulse DOP dropout pulse fH line frequency fsc subcarrier frequency (4.433619 MHz) HDL CCD charged coupled device with 1H delay NLDE non-linear de-emphasis NLEDTE non-linear emphasis/detail enhancer ROT rotary pulse VXO voltage controlled XTAL oscillator YNR vertical noise reduction YLPF luminance low-pass filter SYMBOL PIN DESCRIPTION PCTL 1 picture control/edit switch input CDEV 2 deviation/playback AGC detector input TP2 3 test pin 2/correlation detector output NFB 4 negative feedback input of main emphasis MEO 5 main emphasis output/white clip/modulator input/SQPB selector CCLP3 6 capacitor for clamp 3 CF0E 7 storage capacitor for f0 processor (record)/envelope detector (playback) MDEC 8 main de-emphasis output MDEB 9 main de-emphasis and peaking output VCC(FM) 10 FM supply voltage FMO 11 FM output PTR 12 switch (PB/TRICK/REC) FMI 13 playback FM input CFMA 14 storage capacitor for FM AGC ELS 15 PAL: switch (LP C*/LP/SP); NTSC: switch (EP/LP/SP) CK 16 colour killer terminal FCO 17 frequency correction output BGP 18 burst gate pulse output Note 1. It is recommended that this pin should be connected to ground. ROT 19 rotary pulse input LFVXO 20 loop filter VXO LFVCO 21 loop filter VCO n.c. 22 not connected; note 1 fsc 23 fsc output XTALI 24 VXO input from crystal XTALO 25 VXO output to crystal 2fsc 26 2fsc output fH/2 27 fH/2 output CTT 28 chrominance output to tape VCC(C) 29 chrominance supply voltage CFT 30 playback chrominance input from tape GND(C) 31 chrominance ground ACCO 32 automatic chrominance control output BMI 33 balanced mixer input SNP 34 switch (SECAM/NTSC/PAL) CDO 35 comb driver output CFI 36 chrominance input from comb filter TP1 37 test pin 1; note 1 PBCO 38 playback chrominance output PBCI 39 playback chrominance input VCC(Y) 40 luminance supply voltage CVBSO 41 CVBS output CHI 42 character insertion input (artificial sync/black/white/through) CVBSI 43 CVBS input CAGC 44 AGC detector capacitor SYNC 45 sync separator push-pull output CSS 46 sync separator detector capacitor YNR 47 YNR switch VFC 48 video input from 1HDL CCD VTC 49 video output to 1HDL CCD CCCD 50 storage capacitor for CCD AGC level GND(Y) 51 luminance ground LPNC 52 low-pass filter noise canceller SYMBOL PIN DESCRIPTION |
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Ähnliche Beschreibung - TDA9725 |
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