1 Features

? DisplayPort (DP) / Embedded DisplayPort (eDP)

Transmitter

– VESA DP v1.4a/eDP v1.4b transmitter

– HBR3/HBR2/HBR/RBR Link Bit Rates

– Main link: 1, 2, or 4 lanes

– Each lane up to 8.1Gbps

– AUX CH 1Mbps

– Hot Plug Detect (HPD)

– Extracts aggregated video streams to local eDP

display

– Designed for 4 K @ 60 Hz video resolution

– Stream synchronization and splitting

? V3Link enhanced video interface

– 13.5/12.528/10.8/6.75/3.375 Gbps per Channel;

Up to 27 Gbps over dual channels

– Coax/STP interconnect support

– Selectable 1, 2 channels

– Daisy-chain and splitting

– Adaptive equalization

? Ultra-low latency control channel

– Two fast-mode plus I2C up to 1 MHz (up to 3.4

MHz local bus access)

– High-speed GPIOs

– Supports SPI and UART pass through GPIOs

? Compatibility

– Integrated HDCP v1.4 with on-chip keys

– V3Link video and V3Link enhanced video

product families

? Image enhancement (white balance and dithering)

? Security and diagnostics

– Voltage and temperature monitoring

– BIST and pattern generation

– CRC and error diagnostics

– ECC on control bits

– Unique ID for counterfeit protection

? Advanced link robustness and EMC control

– Spread spectrum clocking generation (SSCG)

? Low power operation

– 1.8V and 1.15V dual power supply

? Qualifications

– ISO 10605 and IEC 61000-4-2 ESD compliant

– Temperature: -20°C to +85°C

2 Applications

? High resolution display:

– Operating room displays

– Seat back entertainment displays

– High resolution HMI

3 Description

The TDES4940 is a V3Link Enhanced Video to

DisplayPort (DP) / Embedded DisplayPort (eDP)

bridge device. In conjunction with a V3Link Enhanced

Video serializer, the chipset receives a high-speed

serialized interface over low-cost 50 Ω coax or

STP/STQ cables. The TDES4940 is a VESA DP

v1.4a/eDP v1.4b compatible device that supports

advanced features such as HBR3, and SuperFrame

formats. The device supports video resolutions of

4K 30-bit color and higher. The V3Link Enhanced

Video supports video and audio data transmission

and full duplex control, including I2C, and GPIO data

over the same link. Consolidation of video data and

control over V3Link Enhanced Video lanes reduces

the interconnect size and weight and simplifies

system design. EMI is minimized by the use of low

voltage differential signaling, data scrambling, and

randomization. In compatible V3Link mode, the device

supports up to 2K resolutions with 24-bit color depth

over a single/dual link as well as HDCP v1.4 support

when paired with an HDCP capable serializer.