DS90UH927Q
5MHz - 85MHz 24-bit Color FPD-Link III Serializer with HDCP
General Description
The DS90UH927Q serializer, in conjunction with a
DS90UH928Q or DS90UH926Q deserializer, provides a so-
lution for secure distribution of content-protected digital video
within automotive entertainment systems. This chipset trans-
lates a FPD-Link video interface into a single-pair high-speed
serialized interface. The digital video data is protected using
the industry standard High-Bandwidth Digital Content Protec-
tion (HDCP) copy protection scheme. The FPD-Link III serial
bus scheme supports full duplex, high speed forward channel
data transmission and low-speed back channel communica-
tion 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 DS90UH927Q serializer embeds the clock, content pro-
tects the data payload, 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 random-
ization, and dc-balancing.
The HDCP cipher engine is implemented in both the serializer
and deserializer. HDCP keys are stored in on-chip memory.
Features
●
Integrated HDCP cipher engine with on-chip key storage
●
Bidirectional control channel interface with I2C compatible
serial control bus
●
Low EMI FPD-Link video input
●
Supports high definition (720p) digital video format
●
5MHz – 85MHz PCLK supported
●
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 3.3V supply with 1.8V or 3.3V compatible LVCMOS
I/O interface
●
AC-coupled STP Interconnect up to 10 meters
●
DC-balanced & scrambled Data with Embedded Clock
●
Supports HDCP repeater application
●
Internal pattern generation
●
Low power modes minimize power dissipation
●
Automotive grade product: AEC-Q100 Grade 2 qualified
●
>8kV HBM and ISO 10605 ESD rating
●
Backward compatible modes
Applications
●
Automotive Display for Navigation
●
Rear Seat Entertainment Systems
Applications Diagram
30193027
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301930 SNLS433A
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