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Texas Instruments DS90UB940N-Q1 FPD-Link III to CSI-2 Deserializers

Texas Instruments DS90UB940N-Q1 1080p FPD-Link III to CSI-2 Deserializers combined with DS90UB949/947/929-Q1 serializers converts 1-lane or 2-lane FPD-Link III streams into a MIPI® CSI-2 format. The DS90UB940N-Q1 deserializer operates over cost-effective, 50Ω, single-ended coaxial or 100Ω, differential shielded twisted-pair (STP) cables. The device recovers the data from one or two FPD-Link III serial streams and translates the data into a Camera Serial Interface (CSI-2) format. This format can support video resolutions up to WUXGA and 1080p60 with 24-bit color depth.

The FPD-Link III interface supports video and audio data transmission and full-duplex control. This support includes I2C and SPI communication over the same differential link. Consolidating video data and control over two differential pairs decreases the interconnect size and weight while simplifying the system design.

The Texas Instruments DS90UB940N-Q1 1080p FPD-Link III to CSI-2 deserializers automatically sense the FPD-Link III channels, supplying a clock alignment and de-skew functionality without special training patterns. This feature ensures skew phase tolerance from mismatches in interconnect wires such as PCB trace routing, cable pair-to-pair length differences, and connector imbalances.

Features

  • AEC-Q100 qualified with the following results
    • Device temperature grade 2 (–40°C to +105°C ambient operating temperature)
  • Supports pixel clock frequency up to 170MHz for WUXGA (1920×1200) and 1080p60 resolutions with 24-bit color depth
  • 1-lane or 2-lane FPD-Link III interface with de-skew capability
  • MIPI® D-PHY / CSI-2 transmitter
    • CSI-2 output ports with selectable 2- or 4-lane operation, up to 1.3Gbps each lane
    • Video formats: RGB888/666/565, YUV422/420, RAW8/10/12
    • Programmable virtual channel identifier
  • Four high-speed GPIOs (up to 2Mbps each)
  • Adaptive receive equalization
    • Compensates for channel insertion loss of up to –15.3dB at 1.7GHz
    • Provides automatic temperature and cable aging compensation
  • SPI control interfaces up to 3.3Mbps
  • I2C (master/slave) with 1Mbps fast-mode plus
  • Supports 7.1 multiple I2S (4 data) channels

Applications

  • Automotive infotainment and clusters
    • Automotive center stack displays
    • Rear seat entertainment
    • Automotive cluster displays
    • Automotive smart displays

Typical Application

Application Circuit Diagram - Texas Instruments DS90UB940N-Q1 FPD-Link III to CSI-2 Deserializers

Videos

Published: 2019-10-08 | Updated: 2025-03-06