CH7028B-TFI Chrontel, CH7028B-TFI Datasheet
![no-image](/images/no-image-200.jpg)
CH7028B-TFI
Manufacturer Part Number
CH7028B-TFI
Description
Manufacturer
Chrontel
Datasheet
1.CH7028B.pdf
(22 pages)
Specifications of CH7028B-TFI
Case
QFP64
Date_code
08+
Chrontel
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Note: the above feature list is subject to change without notice. Please contact Chrontel for
more information and current updates.
209-1000-001
Features
TV encoder targets the handheld devices and other
appropriate display devices used in consumer products.
(i.e. automobile).
Support TV output format (NTSC, PAL).
Two on-chip 10-bit high speed DACs providing flexible
output capabilities. Such as single, double CVBS outputs,
and S-video output.
Internal embedded 16Mbits SDRAM is used as frame
buffer supporting for frame rate conversion.
Flexible up and down scaling engine is embedded
including de-flickering capability.
Programmable 18-bit/16-bit/15-bit/12-bit/8-bit digital
input interface supports various RGB (RGB666, RGB565
and etc), YCbCr (4:2:2 YCbCr, ITU656) and 2x or 3x
multiplexed input. CPU/MEMORY interface is also
supported.
Support for flexible input resolution up to 800x800 and
1024x680. (i.e. 220x176, 320x240, 640x480 720x480,
720x576, 800x480, 800x600 480x800, 600x800 and etc)
Pixel by pixel brightness, contrast, hue and saturation
adjustment for each output is supported.
Pixel by pixel horizontal position adjustment and line by
line vertical position adjustment are supported.
90/180/270 degree image rotation and vertical or
horizontal flip functions are supported.
TV connection detection capability. DAC can be switched
off based on detection result. (Driver support is required)
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).
Only slave mode supported.
Offered in LQFP package and BGA package.
Fully programmable through serial port.
IO and SPC/SPD voltage supported is from 1.2V to 3.3V.
Rev. 1.1,
Chrontel CH7028B SDTV Encoder
08/21/2008
General Description
The CH7028B is a device targeting handheld
and similar systems which accept digital input
signal, and encodes and transmits data through
10-bit DACs. The device is able to encode the
video signals and generate synchronization
signals for NTSC and PAL standards. The
device accepts different data formats including
RGB and YCbCr (e.g. RGB565, RGB666,
ITU656 like YCbCr, etc.). 16Mbit SDRAM is
embedded in package. Frame rate conversion
and Image rotation are possible.
Advance Information
CH7028B
1