Features
Integrated HDCP cipher engine with on-chip key storage
Bidirectional control interface channel interface with I2C compatible serial control bus
Supports high definition (720p) digital video format
RGB888 + VS, HS, DE and I2S audio supported
5 – 85MHz PCLK supported
Single 3.3V Operation with 1.8V or 3.3V compatible LVCMOS I/O interface
AC-coupled STP Interconnect up to 10 meters
Parallel LVCMOS video inputs
DC-balanced & scrambled Data w/ Embedded Clock
HDCP Content protected
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
Description The DS90UH925Q serializer, in conjunction with the DS90UH926Q deserializer, provides a solution for secure distribution of
content-protected digital video within automotive entertainment systems. This chipset translates a parallel RGB Video Interface
into a single pair high-speed serialized interface. The digital video data is protected using the industry standard HDCP copy
protection scheme. The serial bus scheme, FPD-Link III, supports video and audio data transmission and full duplex control
including I2C communication over a single differential link. Consolidation of video data and control over a single differential
pair reduces the interconnect size and weight, while also eliminating skew issues and simplifying system design.
The DS90UH925Q serializer embeds the clock, content protects the data payload, and level shifts the signals to high-speed
low voltage differential signaling. Up to 24 RGB data bits are serialized along with three video control signals and up to
two I2S data inputs.
The DS90UH925Q serializer has a 31-bit parallel LVCMOS input interface to accommodate the RGB, video control, and I2S audio
data.
EMI is minimized by the use of low voltage differential signaling, data scrambling and randomization and spread spectrum clocking
compatibility.
The HDCP cipher engine is implemented in the serializer and deserializer. HDCP keys are stored in on-chip memory.
Applications
Automotive Display for Navigation
Rear Seat Entertainment Systems
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DS90UH925Q Application Diagram
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DS90UH926Q
