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CH7026B-TFI 数据手册 - CHRONTEL（昆泰）
制造商:
CHRONTEL（昆泰）
封装:
LFQFP
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CH7026B-TFI数据手册
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CH7026
Brief Datasheet
209-0000-088 Rev. 1.0, 3/5/2008 1
Chrontel
CH7026 TV/VGA Encoder
Features
General Description
• TV encoder targets for handheld device, surveillance camera
and automobile market.
• Supports multiple output formats such as analog TV (NTSC and
PAL), VGA and HDTV ( 480p,576p,720p, 1080i). Sync signals
can be provided in separated or composite manner.
• Three on-chip 10-bit high speed DACs providing flexible output
capabilities such as single, double or triple CVBS outputs,
YPbPr output, RGB output and simultaneous CVBS and S-
video output.
• 90/180/270 degree image rotation and vertical or horizontal flip.
• 16-Mbit SDRAM is used as a frame buffer for frame rate
conversion.
• Flexible up and down scaling.
• Programmable 24-bit/18-bit/16-bit/15-bit/12-bit/8-bit digital
input interface supports various RGB (RGB888, RGB666,
RGB565 and etc), YCbCr (4:4:4 YCbCr, ITU656) and 2x or 3x
multiplexed input. CPU interface is also supported.
• Supports flexible input resolution up to 800x800 and 1024x680.
• Pixel by pixel brightness, contrast, hue and saturation
adjustment for each output is supported. (For RGB output, only
brightness and contrast adjustment is supported).
• Pixel by pixel horizontal position adjustment and line by line
vertical position adjustment.
• Supports CGMS-A for analog TV and HDTV
• TV/Monitor connection detection capability. DAC can be
switched off based on detection result.
• Programmable power management.
• Flexible pixel clock frequency from graphics controller is
supported. (2.3MHz –120MHz)
• Flexible input clock from crystal or oscillator is supported.
(2.3MHz – 64MHz)
• Supports slave input clock mode only.
• Fully programmable through serial port.
•
IO and SPC/SPD voltage supported is from 1.2V to 3.3V.
•
Offered in BGA or QFP package.
The CH7026 is a semiconductor device targeting
for handheld market, surveillance camera and
automobile multimedia system. This device
accepts digital video signals through its 24-bit
input bus and generates NTSC, PAL, VGA or
HDTV (480p, 576p, 720p and 1080i) video signal
by its 10-bit DACs. In addition, CH7026 has an
embedded 16-Mbit SDRAM to support the CPU
interface.
CH7026 has incorporated an advanced technology
that can perform real-time video rotations and
frame rate conversions
for incoming video stream.
These complicated tasks are achieved by storing
video data to the internal SDRAM and applying
scaling process if required. CH7026 provides great
flexibility for accepting different video data
formats including RGB and YCbCr (e.g. RGB565,
RGB 666, RGB 888, ITU 656).
The CH702
6 is available in BGA or QFP
package.
Note: the above feature list is subject to change without notice. Please contact Chrontel for
more information and current updates.
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