JAJSH10B November 2014 – August 2019 DS90UH949-Q1
PRODUCTION DATA.
The DS90UH949-Q1 converts an HDMI interface (3 TMDS data channels + 1 TMDS Clock) to an FPD-Link III interface. This device transmits a 35-bit symbol over a single serial pair operating up to 3.36-Gbps line rate, or two serial pairs operating up to 2.975-Gbps line rate. The serial stream contains an embedded clock, video control signals, RGB video data, and audio data. The payload is DC-balanced to enhance signal quality and support AC coupling.
The DS90UH949-Q1 serializer is intended for use with a DS90UH926Q-Q1, DS90UH928Q-Q1, DS90UH940-Q1, DS90UH948-Q1 deserializer.
The DS90UH949-Q1 serializer and companion deserializer incorporate an I2C-compatible interface. The I2C-compatible interface allows programming of serializer or deserializer devices from a local host controller. In addition, the device incorporates a bidirectional control channel (BCC) that allows communication between serializer and deserializer, as well as remote I2C slave devices.
The bidirectional control channel (BCC) is implemented through embedded signaling in the high-speed forward channel (serializer to deserializer) combined with lower speed signaling in the reverse channel (deserializer to serializer). Through this interface, the BCC provides a mechanism to bridge I2C transactions across the serial link from one I2C bus to another. The implementation allows for arbitration with other I2C-compatible masters at either side of the serial link.