Diodes Incorporated has recently unveiled the PI3DPX8121A, a 2-to-1 active mux switch for a 4-lane DisplayPort link with data rate support up to 13.5Gbps for eDP1.5/DP1.4 and the new DP2.1 standards. The maximum equalizer gain controls are +10.2dB (DP2.1@6.75GHz) and +7.6dB (eDP1.5/DP1.4@4.05GHz) to compensate for the insertion loss along the channel connection.
The Link Training tunable linear ReDriver design supports the LTTPR (Link Training Transparent PHY Repeater) ReDriver data path type. It ensures the differential signals conveying pre-shoot and de-emphasis equalization waveforms are transmitted from the source side to the receiver side to optimize the overall channel link adjustment conducted by the system transmitter and receiver. The CTLE equalizers are implemented at the inputs of the ReDriver to reduce the ISI jitters and compensate channel loss. The programmable flat gain and linearity adjustments support the eye diagram opening.
With the combinational logic control design, users can use the pin strap method to select various EQ gains, flat gains and output swing linearity for flexible design tuning.
Key features
- 2:1 Active Mux Configuration for 4-Lane DisplayPort Operation
- Data Rate Support Up to 13.5 Gbps to Cover 8.1 Gbps eDP1.5/DP1.4 and 13.5 Gbps DP2.1 Speed per Lane (RBR/HBR/HBR2/HBR3/UHBR10/UHBR13.5)
- LT-Tunable Capability for LTTPR ReDriver Data Path Support
- Quad-Level Pin Strap Control Through Combinational Logic Table for Equalizer Gain Value Selection
- Quad-Level Pin Strap Control for Flat Gain and Output Swing Linearity Selection
- Single Power Supply: 3.3 V
- Industry Temperature Support: −40°C to +85°C
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. “Green” Device (Note 3)
- Packaging (Pb-free & Green):
- 60-pin 5 x 9 mm TQFN, (ZL)
Key applications
- Laptop and Desktop PCs
- Workstation and Server Systems
- Docking, KVM and PC Peripherals
- Display Monitors
