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SNLU205 – March 2016
Copyright © 2016, Texas Instruments Incorporated
DS90UB921-Q1EVM User's Guide
Chapter 1
SNLU205 – March 2016
DS90UB921-Q1EVM User's Guide
1.1
General Description
The DS90UB921-Q1EVM (Evaluation Module) is 24-bit Color FPD-Link III Serializer with Bidirectional
Control Channel. This kit will demonstrate the functionality and operation of the DS90UB921-Q1. The
DS90UB921-Q1 is in conjunction with the DS90UB922-Q1, DS90UB926Q-Q1, DS90UB928Q-Q1,
DS90UB940-Q1, and DS90UB948-Q1 Deserializers, provides a complete digital interface for concurrent
transmission of high-speed video, audio, and control data for automotive display and image sensing
applications. The DS90UB921-Q1 supports Extended High Definition (1920 x 720p / 60Hz) Digital Video
Format with 24-bit color depth.
The DS90UB921-Q1 incorporates an embedded bidirectional control channel and low latency GPIO
controls. The device translates a parallel interface into a single pair high-speed serialized interface. The
serial bus scheme, FPD-Link III, supports full duplex of high-speed video data transmission and
bidirectional control communication over a single link.
The DS90UB921-Q1 supports clocks in the range of 5 MHz to 96 MHz.
WARNING
The demo board is not intended for EMI testing. The demo board was
designed for easy accessibility to device pins with tap points for
monitoring or applying signals, additional pads for termination, and
multiple connector options.
1.2
Features
•
Supports Extended High Definition (1920x720p/60Hz) Digital Video Format with 24-bit Color Depth
•
VS, HS, and DE
•
Parallel LVCMOS Video Inputs
•
Bidirectional Control Interface Channel Interface with I2C Compatible Serial Control Bus
•
Up to 10 meters over Differential Shielded Twisted-Pair (STP) cable or Single-Ended Coaxial (Coax)
–
STP mode: 5 - 96 MHz Pixel Clock
–
Coax mode: 15 - 96 MHz Pixel Clock
•
Backwards Compatible to DS90UB922-Q1, DS90UB926Q-Q1, DS90UB928-Q1, DS90UB940-Q1, and
DS90UB948-Q1 FPD-Link III Deserializers
•
4 Optional Bidirectional GPIO Channels
•
Spread Spectrum Tolerant Input
•
Single 3.3 V Operation with 1.8 V or 3.3 V Compatible LVCMOS I/O Interface
•
DC-Balanced and Scrambled Data with Embedded Clock
•
Internal pattern Generation
•
Automotive grade product: AEC-Q100 Grade 2 qualified
