Product Summary

The CH7026B-GF is an TV/VGA encoder. The CH7026B-GF is a device targeting handheld and similar systems which accept digital input signal, and encodes and transmits data through 10-bit DACs. The CH7026B-GF is able to encode the video signals and generate synchronization signals SDTV format for NTSC and PAL standards and HDTV format for 480p,576p,720p and 1080i. Analog RGB output and composite SYNC signal are also supported. The device accepts different data formats including RGB and YCbCr (e.g. RGB565, RGB666, RGB888, ITU656 like YCbCr, etc.). 16Mbit SDRAM is embedded in package. Frame rate conversion and Image rotation are possible.

Parametrics

CH7026B-GF absolute maximum ratings: (1)Operating Temperature Range: -20 to 70℃; (2)IO supply voltage: 1.2-3.3V; (3)Analog supply voltage: 2.5 - 3.3V; (4)DAC power supply: 2.5 - 3.3V.

Features

CH7026B-GF features: (1)Pixel by pixel horizontal position adjustment and line by line vertical position adjustment are supported; (2)90/180/270 degree image rotation and vertical or horizontal flip functions are supported; (3)Macrovision 7.1.L1 for SDTV is supported in CH7025(CH7026 is Non-Macrovision part); (4)MacrovisionTM copy protection support for progressive scan TV (480p, 576p CH7025 only); (5)CGMS-A support for SDTV and HDTV; (6)TV/Monitor connection detect capability. DAC can be switched off based on detection result (Driver support is required); (7)Programmable power management; (8)Flexible pixel clock frequency from graphics controller is supported. (2.3MHz -120MHz)Flexible input clock from crystal or oscillator is supported; (9)Only slave mode supported; (10)Offered in BGA or QFP package; (11)Fully programmable through serial port; (12)IO and SPC/SPD voltage supported is from 1.2V to 3.3V.

Diagrams

CH7026B-GF pin connection

CH7001C
CH7001C

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CH7002D
CH7002D

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CH7003B
CH7003B

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CH7004C
CH7004C

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Negotiable 
CH7005C
CH7005C

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CH7006C
CH7006C

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Negotiable