1 Features
1• 10-MHz to 100-MHz Input Pixel Clock Support
• Single Differential Pair Interconnect
• Programmable Data Payload:
– 10-bit Payload up to 100 MHz
– 12-bit Payload up to 75 MHz
• Continuous Low Latency Bidirectional Control
Interface Channel With I2C Support at 400 kHz
• 2:1 Multiplexer to Choose Between Two Input
Imagers
• Embedded Clock With DC-Balanced Coding to
Support AC-Coupled Interconnects
• Capable of Driving up to 25 Meters Shielded
Twisted-Pair
• Receive Equalizer Automatically Adapts for
Changes in Cable Loss
• Four Dedicated General-Purpose Input/Output
Pins (GPIO) Available on Both Serializer and
Deserializer
• LOCK Output Reporting Pin and AT-SPEED BIST
Diagnosis Feature to Validate Link Integrity
• 1.8-V, 2.8-V or 3.3-V Compatible Parallel Inputs
on Serializer
• Single Power Supply at 1.8 V
• ISO 10605 and IEC 61000-4-2 ESD Compliant
• Automotive-Grade Product: AEC-Q100 Grade 2
Qualified
• Temperature Range −40°C to +105°C
• Small Serializer Footprint (5 mm × 5 mm)
• EMI/EMC Mitigation on Deserializer
– Programmable Spread Spectrum (SSCG)
Outputs
– Receiver Staggered Outputs

2 Applications
• Front- or Rear-View Camera for Collision
Mitigation
• Surround View for Parking Assistance

3 Description
The DS90UB91xQ-Q1 chipset offers an FPD-Link III
interface with a high-speed forward channel and a
bidirectional control channel for data transmission
over a single differential pair. The DS90UB91xQ-Q1
chipsets incorporate differential signaling on both the
high-speed forward channel and bidirectional control
channel data paths. The serializer and deserializer pair is targeted for connections between imagers and
video processors in an electronic control unit (ECU).
This chipset is ideally suited for driving video data
that requires up to 12-bit pixel depth plus two
synchronization signals along with bidirectional
control channel bus.
There is a multiplexer at the deserializer to choose
between two input imagers. The deserializer can
have only one active input imager. The primary video transport converts 10- and 12-bit data over a single
high-speed serial stream, along with a separate low
latency bidirectional control channel transport that
accepts control information from an I2C port and is
independent of video blanking period.