DS90UR905Q-Q1 Datasheet, PDF (23/58 Pages) Texas Instruments – 5- to 65-MHz, 24-bit Color FPD-Link II Serializer and Deserializer

www.ti.com
8 Detailed Description
DS90UR905Q-Q1, DS90UR906Q-Q1
SNLS313H – SEPTEMBER 2009 – REVISED JULY 2015
8.1 Overview
The DS90UR90xQ-Q1 chipset transmits and receives 27-bits of data (24-high speed color bits and 3 low speed
video control signals) over a single serial FPD-Link II pair operating at 140Mbps to 1.82Gbps. The serial stream
also contains an embedded clock, video control signals and the DC-balance information which enhances signal
quality and supports AC coupling. The pair is intended for use with each other but is backward-compatible with
previous generations of FPD-Link II as well.
The deserializer can attain lock to a data stream without the use of a separate reference clock source, which
greatly simplifies system complexity and overall cost. The deserializer also synchronizes to the serializer
regardless of the data pattern, delivering true automatic plug and lock performance. It can lock to the incoming
serial stream without the need of special training patterns or sync characters. The deserializer recovers the clock
and data by extracting the embedded clock information, validating and then deserializing the incoming data
stream providing a parallel LVCMOS video bus to the display.
The DS90UR90xQ-Q1 chipset can operate in 24-bit color depth (with VS,HS,DE encoded in the DCA bit) or in
18-bit color depth (with VS, HS, DE encoded in DCA or mapped into the high-speed data bits). In 18–bit color
applications, the three video signals maybe sent encoded via the DCA bit (restrictions apply) or sent as data bits
along with three additional general-purpose signals.
Functional Block Diagrams shows the diagrams for the chipsets.
8.2 Functional Block Diagrams
VODSEL
De-Emph
24
RGB[7:0]
HS
VS
DE
RFB
DOUT+
DOUT-
PCLK
PLL
Pattern
Generator
CONFIG[1:0]
PDB
SCL
SCA
ID[x]
BISTEN
Timing and
Control
Figure 21. DS90UR905Q-Q1 – Serializer
Copyright © 2009–2015, Texas Instruments Incorporated
Submit Documentation Feedback
23
Product Folder Links: DS90UR905Q-Q1 DS90UR906Q-Q1