Texas Instruments TDP2044 DisplayPort 2.1 Redriver
Texas Instruments TDP2044 DisplayPort 2.1 Redriver is a four-channel low-power, high-performance linear repeater or redriver with integrated cross-point to support VESA USB Type-C™ Alt Mode applications designed to support DisplayPort 2.1 up to 20Gbps.
The TDP2044 receivers provide a programmable high-frequency boost by deploying continuous time linear equalizers (CTLE). The equalizer can open an input eye that is completely closed due to inter-symbol interference (ISI) induced by an interconnect medium, such as PCB traces or cables. The linear data paths of TDP2044 preserve a transmit preset signal characteristics. High bandwidth, low channel-to-channel crosstalk, low additive jitter, and excellent return loss make the device almost a passive element in the link, but with helpful equalization. The DisplayPort link training is effective through the linear redriver that becomes part of the passive channel between source Tx and sink Rx. This transparency in the link training protocol results in an optimum electrical link and the lowest possible latency. The data path provides high immunity to any supply noise on the board by using an internally regulated power rail.
The Texas Instruments TDP2044 also has low DC and AC gain variation, providing consistent equalization in high-volume platform deployment.
Features
- Supports DisplayPort 2.1 up to 20Gbps (UHBR20)
- Designed for USB-C™ DP only (no USB 3.x) source or sink with integrated cross-point mux
- Protocol agnostic linear equalizer supporting most AC coupled interfaces up to 20Gbps
- Excellent electrical performance at 20Gbps (10GHz Nyquist)
- 19dB equalization
- 1.8V DC linearity, 1.08V AC linearity
- -15 / -16dB Rx / Tx return loss
- -60dB NEXT, -43dB FEXT crosstalk
- 70fs low additive RJ with PRBS data
- Transparent to DisplayPort 1.4 and 2.1 link training
- Single 3.3V supply with 160mW/chan active power
- The internal voltage regulator provides immunity to supply noise
- High linearity easing DP compliance ratio tests
- High BW resulting in excellent linear EQ curves
- Pin-strap, I2C, or EEPROM programming
- 18 EQ boost and five flat gain settings
- TDP2044 has a 0°C to 70°C commercial temperature rating
- TDP2044I has a -40°C to 85°C industrial temperature rating
- 4mm × 6mm, 40-pin WQFN package
Applications
- Desktop PC or motherboard
- PC, notebooks, and tablets
- Docking stations
- TV, gaming, home theater, and entertainment
- Pro audio, video, and signage
- Test and measurement
- Medical
- Flat panel monitors
Typical Application
Related Development Tool
Texas Instruments TDP2004EVM Evaluation Module
Evaluates the TDP2004 linear redriver for video applications with Display Port (DP) interfaces.