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DS90UB927Q-Q1
SNLS416D – JUNE 2012 – REVISED JANUARY 2015
DS90UB927Q-Q1 5-MHz to 85-MHz 24-bit Color FPD-Link III Serializer
With Bidirectional Control Channel
1 Features
•1 Bidirectional Control Channel Interface with I2C-
compatible Serial Control Bus
• Low EMI FPD-Link Video Input
• Supports High Definition (720p) Digital Video
Format
• 5-MHz to 85-MHz PCLK Supported
• RGB888 + VS, HS, DE and I2S Audio Supported
• Up to 4 I2S Digital Audio Inputs for Surround
Sound Applications
• 4 Bidirectional GPIO Channels with 2 Dedicated
Pins
• Single 3.3-V Supply with 1.8-V or 3.3-V
Compatible LVCMOS I/O Interface
• AC-Coupled STP Interconnect Up to 10 Meters
• DC-Balanced and Scrambled Data With
Embedded Clock
• Supports Repeater Application
• Internal Pattern Generation
• Low Power Modes Minimize Power Dissipation
• Automotive Grade Product: AEC-Q100 Grade 2
Qualified
• >8-kV HBM and ISO 10605 ESD Rating
• Backward Compatible Modes
2 Applications
• Automotive Displays for Navigation
• Rear Seat Entertainment Systems
• Automotive Driver Assistance
• Automotive Megapixel Camera Systems
3 Description
The DS90UB927Q-Q1 serializer, in conjunction with a
DS90UB928Q-Q1 or DS90UB926Q-Q1 deserializer,
provides a complete digital interface for concurrent
transmission of high-speed video, audio, and control
data for automotive display and image sensing
applications.
The chipset is ideally suited for automotive video
display systens with HD formats and automotive
vision systems with megapixel resolutions. The
DS90UB927Q-Q1 incorporates an embedded
bidirectional control channel and low latency GPIO
controls. This device translates a FPD-Link video
interface into a single-pair high-speed serialized
interface. The FPD-Link III serial bus scheme
supports full duplex, high speed forward channel data
transmission and low-speed back channel
communication over a single differential link.
Consolidation of audio, video, and control data over a
single differential pair reduces the interconnect size
and weight, while also eliminating skew issues and
simplifying system design.
The DS90UB927Q-Q1 serializer embeds the clock
and level shifts the signals to high-speed differential
signaling. Up to 24 RGB data bits are serialized along
with three video control signals, and up to four I2S
data inputs.
The FPD-Link data interface allows for easy
interfacing with data sources while also minimizing
EMI and bus width. EMI on the high-speed FPD-Link
III bus is minimized using low voltage differential
signaling, data scrambling and randomization, and
DC-balancing.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DS90UB927Q-Q1 WQFN (40)
6.00 mm x 6.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
HOST
Graphics
Processor
Application Diagram
FPD-Link
FPD-Link
VDDIO
VDD33
(1.8V or 3.3V) (3.3V)
VDD33
VDDIO
(3.3V) (1.8V or 3.3V)
RxIN3+/-
RxIN2+/-
RxIN1+/-
RxIN0+/-
RxCLKIN+/-
PDB
INTB
I2S
6
SCL
SDA
IDx
DOUT+
DOUT-
DS90UB927Q-Q1
Serializer
FPD-Link III
1 Pair/AC Coupled
1003 STP Cable
MAPSEL
LFMODE
REPEAT
BKWD
OEN
OSS_SEL
PDB
MAPSEL
LFMODE
BISTEN
MODE_SEL
RIN+
RIN-
DS90UB928Q-Q1
Deserializer
TxOUT3+/-
TxOUT2+/-
TxOUT1+/-
TxOUT0+/-
TxCLKOUT+/-
INTB_IN
LOCK
6
PASS
I2S
MCLK
SCL
SDA
IDx
RGB Display
720p
24-bit Color Depth
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
