TI DS90UB948TNKDTQ1

DS90UB948-Q1 is an FPD-Link III deserializer that, when used with the DS90UB949A/949/947-Q1 serializer, converts single- or dual-channel FPD-Link III streams to FPD-Link (OpenLDI) interface format. The deserializer operates over cost-effective 50Ω single-ended coaxial or 100Ω differential shielded twisted pair (STP) cable. It recovers data from single- or dual-channel FPD-Link III serial streams and converts them to dual-pixel FPD-Link (8 LVDS data lanes + clock), supporting video resolutions up to 2K (2048×1080) at 24-bit color depth. This provides a bridge between HDMI-capable sources (e.g., CPUs) for connection to existing LVDS displays or application processors. The FPD-Link III interface supports video and audio data transmission along with full-duplex control (including I2C and SPI communication) over the same differential link. Consolidating video data and control over two differential pairs reduces interconnect size and weight while simplifying system design. EMI is minimized through the use of low-voltage differential signaling, data scrambling, and spread-spectrum clocking. In backward-compatible mode, the device supports up to WXGA and 720p resolutions (24-bit color depth) over a single differential link. The device automatically detects FPD-Link III channels and provides clock alignment and skew compensation without requiring any special training modes. This ensures phase skew remains within tolerance in the presence of interconnect mismatches (e.g., PCB routing), cable pair length differences, and connector imbalances.

• Automotive-qualified
• AEC-Q100 compliant with the following characteristics: Device Temperature Grade 2: -40°C to +105°C ambient operating temperature range
• Supports pixel clock frequencies up to 192MHz for 2K (2048x1080) resolution at 24-bit color depth
• Single- or dual-channel FPD-Link III interface with skew correction
• Single- or dual-channel OpenLDI (LVDS) transmitter: single-channel up to 96MHz pixel clock; dual-channel up to 192MHz pixel clock, configurable 18-bit RGB or 24-bit RGB
• Functional safety support: documentation to facilitate ISO 26262 system design
• Four-channel high-speed GPIO (up to 2Mbps per channel)
• Adaptive receive equalization: channel insertion loss compensation up to –15.5dB at 1.48GHz and up to -9dB at 1.68GHz; automatic temperature and cable aging compensation
• SPI control interface rate up to 3.3Mbps
• I2C (controller/target) with 1Mbps Fast Mode Plus
• Image enhancement features (white balance and dithering)
• Supports 7.1 multi-lane I2S (4 data) channels

• Automotive infotainment systems: central information display, rear-seat entertainment system, digital instrument cluster