If you have questions about the product, or encounter any, you can register the site account,
Then go to the technical support forum to ask for help.


  • Digital Visual Interface (DVI 1.0) Transmitter up to 165M pixels/second

  • Supports switched DVI encoding two outputs port A and B one at the time

  • DVI low jitter PLL

  • DVI hot plug detection

  • High-speed SDVO* (1G~2Gbps) AC-coupled serial differential RGB inputs

  • Programmable power management

  • Fully programmable through a serial port

  • Configuration through Intel® Opcodes*

  • Windows XP and Vista support (including MCE and 64-bit variations)

  • Offered in a 64-pin LQFP package



* Intel ® Proprietary


The CH7320 is a Chrontel flat panel display product targeted at PC industry. This transmitter accepts a digital RGB graphics input signal stream from the Intel's Serial Digital Video Output (SDVO) interface, performs digital processing on both data and timing and then transmits DVI signals through a DVI link.

The DVI processor includes a low jitter PLL for generation of the high frequency serialized clock, and all circuitry required to encode, serialize and transmit the data. The CH7320 is able to drive a DFP display at a pixel rate of up to 165MHz, supporting UXGA (1600x1200) resolution displays.

The CH7320 has two DVI output ports that allow two DVI monitors to be switched from a single source. Its connection detection circuitry will automatically route the DVI data stream to a correct DVI port that a monitor is attached to.

CH7320 is pin to pin compatible with CH7315 DVI/HDMI transmitter and CH7319 DVI/HDCP transmitter.

Structure diagram

Data sheet

 View the CH7320A Datasheet

Application Desc


Technical Report



Input Interface  SDVO

Output Interface  DVI

Audio Interface  No

Other features  No

Package Type  LQFP64


Part Number Package Type Number of Pins Voltage Supply Temperature Grade
CH7320A-TEF Lead Free - LQFP with exposed pad642.5V & 3.3VCommercial / Automotive Grade 4

CH7320A-TEF-I Lead Free - LQFP with exposed pad642.5V & 3.3VIndustrial / Automotive Grade 3

CH7320A-TEF-TR Lead Free - LQFP with exposed pad in Tape & Reel642.5V & 3.3VCommercial / Automotive Grade 4

CH7320A-TEF-I-TR Lead Free - LQFP with exposed pad in Tape & Reel642.5V & 3.3VIndustrial / Automotive Grade 3




About Chrontel Overview Chrontel, headquartered in San Jose, California, is a privately-held company with over 130 employees worldwide. Incorporated in 1986, the company develops and markets mixed-signal integrated circuits for the PC, display and consumer mark...


Address:2210 O’Toole Ave. Suite 100, San Jose, CA 95131-1326

TEL: (408) 383-9328

FAX: (408) 383-9338

Copyright © 1998-2017 Chrontel, Inc. All Rights Reserved.          Privacy protection Legal statement