CH7034B Fulll Datasheet Rev1.25
CH7034B HDTV/VGA/LVDS Encoder
Supports multiple output display formats – including
Component YPrPb(HDTV), LVDS and analog RGB
(VGA)
• Three 10-bit high speed DACs
• HDTV output support up to 1080p
• Analog RGB (VGA) support up to 1920x1080
resolution
• Single channel LVDS 18-bit transmitter supports
input resolution up to 1366x768
• Support scaled and bypassed video streams output
from VGA/HDTV and LVDS interfaces
simultaneously
• Supports panel protection, power sequencing and
backlight on/off. PWM is available for controlling
LCD brightness
• TV/Monitor connection detect capability. DACs can
be switched off through programming internal
registers
• On-chip SDRAM frame buffer to support frame rate
conversion.
• Programmable adaptive de-flickering filter
• Supports 8/12/16/18/24-bit parallel interface inputs
for either RGB format or YCbCr format (ITU-R 656
or ITU-R 601). 80/86 MPU interface and DE only
mode are also supported.
• Wide range of input resolutions support for up to
1366x768 (i.e. 640x480 720x480, 720x576, 800x600,
1024x600, 1024x768, 1280x800, and etc.)
• Image display rotation support at 90/180/270 degree
or flipped in horizontal/vertical position
• Pixel-level color enhancement for brightness,
contrast, hue and saturation adjustment for HDTV
• Horizontal/vertical position adjusted through serial
port programming
• Pixel clock input frequency support for up to 165
MHz
• Flexible crystal or oscillator clock input frequency
(2.3MHz – 64MHz)
• IO Supply Voltages from 1.2V to 3.3V and SPC/SPD
Supply Voltages from 1.8V to 3.3V.
• Programmable power management
• Device fully programmable through serial port or can
automatically load firmware from Chrontel Boot
ROM (9904AMF)
• Offered in a 88-pin QFN package
Chrontel CH7034B is specifically designed for a portable
system that requires connections to LCD display, High
Definition Television (HDTV) or RGB (VGA) monitor.
With its advanced video encoder, flexible scaling engine
and easy-to-configure video interface, the CH7034B
satisfies manufactures’ product display requirements and
reduces their costs of development and time-to-market.
