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PDF TC90A92AFG Data sheet ( Hoja de datos )
| Número de pieza | TC90A92AFG | |
| Descripción | 3D comb & Video Decoder | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TC90A 92AFG
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC90A92AFG
3D comb & Video Decoder
TC90A92AFG is a 1chip LSI of 3 dimensional Y/C separation and color decoder.
TC90A92AFG has 10bit A/D converter and 8bit A/D converter for analog Video signal and 1H component signal.
and it also has 4Mbit DRAM for NTSC 3D comb. In case of PAL system, 3 line comb is available.
The internal color decoder is adaptive to multi color system.
Feature
• Multi color system
• Input I/F CVBS / S / YCbCr
• 3DYCS NTSC system
• 3lineYCS+3D YNR/CNR : Multi color system
SECAM BPF YCS
• Output I/F 656 / 601
• Picture improvement
Y Vertical enhance / LTI / Contrast / Set up adjust
C TOF / ACC / Color decode /
Color gain /CTI / offset adjust
• S/N detection / ID1 data slice / CCD data slice
• I2C bus control
• Package QFP 100
• Power supply 1.5V 2.5V 3.3 V
QFP100-P-1420-0.65Q
Mass : 1.6g (TYP)
Version 1.5
TOSHIBA is continually working to improve the quality and the reliability of its product. Nevertheless,
semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and
vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to
observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA
product could cause loss of human life, bodily injury or damage to property. In developing your
designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth
in the most recent products specifications. Also, please keep in mind the precautions and conditions
set forth in the TOSHIBA Semiconductor Reliability Handbook.
1 page  
TC90A 92AFG
4.1 Introduction
TC90A92AFG is a signal processor for normal scan (525i, 625i) signal.
1. TC90A92AFG has input interface for CVBS, S and component video signals.
2. TC90A92AFG has a 3D YCS function for M-NTSC signal with internal 4Mbit DRAM.
And in case of 3line YCS mode it is available to use 3D YNR & CNR function.
3. TC90A92AFG has a 3D YNR & CNR for S terminal input and 1H component signal.
4. TC90A92AFG has a digital input interface for Ghost reduction LSI.
5. TC90A92AGF has color decoder circuit for multi video system and cync separation circuit.
6. Selectable automatic color system detection mode and forced color system mode.
7. TC90A92AFG has picture quality improve function.
8. TC90A92AFG has ITUR-656 and 601 output interface.
9. TC90A92AFG has S/N detection, ID-1 data slice and CCD data slice function for M-NTSC and
it is available to read via IIC read mode.
4.2 Function
(1) Input stage
The input video signal (CVBS/S / YCbCr) is converted to digital video signal by internal A/D converter
of TC90A92AFG. TC90A92AFG generates the fH synchronous clock (27MHz) from the digital video signal by
using
PLL circuit, H sync separation circuit and H sync regeneration circuit.
This clock is generated by internal digital VCO circuit which has 42MHz X’tal oscillation circuit as a reference
clock.
(2) Input interface
a) Setting for input mode
Input signal can be set via INSEL at sub address 00 hex.
INSEL : 00: CVBS 01: S input 10: YCbCr 11: GR digital input
b) Dynamic range of the internal ADC
TC90A92AFG has a 10bit ADC for analog CVBS, Y signal of S input and Y signal of component.
For color signal (chroma & CbCr), TC90A92AFG has a another 8bit ADC.
Dynamic range of the internal ADC is designed by AVDD 0.4(Reference level : 1Vp-p).
Recommend amplitude of analog video signal input is 0.7Vp-p (140IRE).
5 Page 
a) Vertical output timing
a-1 ) 525 /60Hz input
(first field)
Sync
through
Mode
/
656
Mode
/
FIELD 1
FIELD 1
(2n’d field)
TC90A 92AFG
Sync
through
Mode
656
Mode
/
/
FIELD 2
FIELD 2
11 Page | ||
| Páginas | Total 34 Páginas | |
| PDF Descargar | [ Datasheet TC90A92AFG.PDF ] | |
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