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DS90UB914A データシート

部品番号コンポーネント説明メーカー
DS90UB914A 25-MHz to 100-MHz 10/12-Bit FPD-Link III Deserializer TI
Texas Instruments TI
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Description
The DS90UB914A-Q1 device offers an FPD-Link III interface with a high-speed forward channel and a bidirectional control channel for data transmission over a single coaxial cable or differential pair. The DS90UB914A-Q1 device incorporates differential signaling on both the high-speed forward channel and bidirectional control channel data paths. The deserializer is targeted for connections between imagers and video processors in an ECU (Electronic Control Unit). This device is ideally suited for driving video data requiring up to 12-bit pixel depth plus two synchronization signals along with bidirectional control channel bus.
The deserializer features a multiplexer to allow selection between two input imagers, one active at a time. The primary video transport converts 10-bit or 12-bit data to 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.
Using TI’s embedded clock technology allows transparent full-duplex communication over a single differential pair, carrying asymmetrical-bidirectional control channel information. This single serial stream simplifies transferring a wide data bus over PCB traces and cable by eliminating the skew problems between parallel data and clock paths. This significantly saves system cost by narrowing data paths that in turn reduce PCB layers, cable width, and connector size and pins. In addition, the Deserializer inputs provide adaptive equalization to compensate for loss from the media over longer distances. Internal DC-balanced encoding/decoding is used to support AC-coupled interconnects.

Features
• Qualified for Automotive Applications AEC-Q100
   – Device Temperature Grade 2: –40℃ to +105℃
      Ambient Operating Temperature Range
   – Device HBM ESD Classification Level ±8kV
   – Device CDM ESD Classification Level C6
• 25-MHz to 100-MHz Input Pixel Clock Support
• 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
   images
• Capable of Receiving over 15m Coaxial or 20m
   Shielded Twisted-pair Cables
• Robust Power-Over-Coaxial (PoC) Operation
• Receive Equalizer Automatically Adapts for
   Changes in Cable Loss
• LOCK Output Reporting Pin and @SPEED BIST
   Diagnosis Feature to Validate Link Integrity
• Single Power Supply at 1.8 V
• ISO 10605 and IEC 61000-4-2 ESD Compliant
• EMI/EMC Mitigation with Programmable Spread
   Spectrum (SSCG) and Receiver Staggered
   Outputs

Applications
• Automotive
   – Surround View Systems (SVS)
   – Rear and Front View Cameras
   – Driver Monitor Cameras (DMS)
   – Remote Satellite RADAR Sensors
• Security and Surveillance
• Industrial Machine Vision

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