FEATURES GENERAL DESCRIPTION
 DVI Transmitter support up to 1080p
 DVI hot plug detection
 Supports Component YPrPb (HDTV) up to 1080p
and analog RGB (VGA) monitor up to 1920x1080
resolution
 Supports DVI and VGA/HDTV output
simultaneously
 Three 10-bit high speed DACs
 SPDIF audio interface supports either 16-bit or 20-
bit stereo data for up to 192kHz/2ch
 Support 2 channel I2S digital audio input for up to
24-bit data stream (32kHz, 44.1kHz, 48kHz,
88.2kHz, 96kHz, 176.4kHzand 192kHz)
 TV/Monitor connection detect capability. DACs can
be switched off through programming internal
registers
 Pixel-level color enhancement for brightness,
contrast, hue and saturation adjustment for HDTV
output
 Supports 8/12/16/18/24-bit parallel interface input
for either RGB format (RGB-565, RGB-666 or
RGB-888 and etc.) or YCrCb format (ITU-R 656 or
ITU-R 601). 80/86 MPU interface and DE only
mode are also supported.
 Pixel clock input frequency support for up to 165
MHz
 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
 Offered in a 88-pin QFN package
APPLICATION
 Media Internet Devices
 Media Storage Boxes
 Smart-books
 Digital Video Players
 Digital Video Recorders
 Portable Media Players
The Chrontel CH7053A is specifically designed for
consumer electronics device and PC markets which
multiple high definition content display formats are
required. With its advanced video encoder, flexible
scaling engine and easy-to-configure audio interface, the
CH7053A satisfies manufactures’ products display
requirements and reduce their costs of development and
time-to-market.
High quality high-bandwidth uncompressed video like
DVI and YPrPb components or legacy VGA analog
display are supported by the device’s color format
converter. The 3 high-performance, 10-bit DACs can be
used for either HDTV display or VGA output depending
on manufactures’ products specification. The device is
compliant with EIA770-3 and SMPTE
274M/293M/296M standards and supports HDTV
resolution for up to 1080p. The CH7053A has the ability
to generate composite syncs if required by the RGB
monitor.
The CH7053A’s 24-bit parallel bus accepts a wide range
of input data formats from the graphic controller. The
built-in video port supports 8/12/16/18/24-bit data
interface as well as 80/86 MPU interface. The video
format conversion module is capable of translating digital
RGB-565, RGB-666, RGB-888 or YCrCb (ITU-R 656,
ITU-R 601) signal to the DVI signal, combining with the
audio stream. The input digital signal also can be
transformed by the DACs for HDTV or VGA analog
outputs.
The CH7053A supports both SPDIF and 2-channel I²S
digital audio input. Its high fidelity audio decoder engine
has the capability of sampling audio frequency for up to
192k/2ch. The SPIDF supports PCM encoded data and
compressed audio including Dolby Digital and DTS.
The CH7053A has an image enhancement function that
can fine tune brightness, contrast, hue and saturation
down to the pixel-level.