1. Description
LT7912 is a high performance Type-C/DP1.4a or HDMI2.1 to MIPI or LVDS chip for VR/Display application.HDCP RX as the upstream of HDCP repeater, can cooperate with HDCP TX of other chips to realize the repeater function.
For Type-C/DP1.4a input, LT7912 can be configured as 1/2/4 lanes. Adaptive equalization makes it suitable for long cable application and the maximum bandwidth up to 32.4Gbps.
For HDMI2.1 input, LT7912 can be configured as 3/4 lanes. Adaptive equalization makes it suitable for long cable application and the maximum bandwidth up to 40Gbps.
For MIPI output, LT7912 features configurable single-port or dual-port or quad-port MIPI®DSI/CSI with 1 high-speed clock lane and 1~4 high-speed data lanes operating at maximum 2.5Gbps/lane with D-PHY, which can support a total bandwidth of up to 40Gbps for four port. LT7912 also support 5.7Gbps/lane with C-PHY, which can support a total bandwidth of up to 68.4Gbps for four port.
For LVDS output, LT7912 can be configured as single, dual or quad-port LVDS with 1 high-speed clock lane, and 3~5 high-speed data lanes, operating at maximum 1.2Gbps per lane, which can support a total bandwidth of up to 24Gbps. LT7912 supports flexible video data mapping path for 2D and 3D applications.
Two digital audio interfaces are available I2S and SPDIF. The I2S interface supports 8-ch LPCM and the SPDIF interface supports 2-ch LPCM or compressed audio, both at maximum 192 KHz sample rate.
The device is capable of automatic operation which is enabled by an integrated microprocessor that uses an embedded SPI flash for firmware storage. System control is also available through the configuration I2C slave interface.
2. Features
• Type-C
• DP1.4a/eDP1.5 Receiver
• HDMI2.1/ Receiver
• DP1.4a/eDP1.5 Transmitter
• HDMI2.1 Transemitter
• Four-Port MIPI® DSI/CSI Transmitter
• Digital Audio Input and Output
• Four-Port LVDS Transmitter
• DSC Decoder and Encoder
3. Applications
• Mobile system
• Display
• VR
• Video conferencing
