20 Gbps Per Lane, 4-Lane DisplayPort Linear Redriver

PTN3816

PTN3816 is a high performance 20 Gbps per lane, 4 lane DisplayPort linear redriver for DisplayPort upstream (DP source side) and downstream (DP Sink side) applications. It is used to improve high-speed signal quality in DisplayPort interfaces in various platforms and applications.

The device provides pin programmable receive equalization, output linearity control to improve signal integrity and enable channel extension by reducing Inter-Symbol Interference (ISI). This IC also implements AUX snooping to monitor the AUX signals to optimally configure the link and achieve power saving and SI performance.

PTN3816 has control pins for application-specific configurability. These pins can either be strapped appropriately on the PCB or connected to a microcontroller’s GPIO pins.

PTN3816 is powered from 1.8 V supply. It is available in a small high performance HWFLGA36 package with 2.1 mm x 6.0 mm x 0.6 mm size and 0.4 mm pitch.

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Block Diagram

PTN3816 Block Diagram

PTN3816 Block Diagram
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Features

  • Implements DisplayPort linear redriver that can operate for various link rates -
  • 1.62 Gbps (RBR), 2.7 Gbps (HBR), 5.4 Gbps (HBR2), 8.1 Gbps (HBR3), 10, 13.5 and 20 Gbps
  • Supports configurable number of lanes: 1, 2 and 4
  • DP AUX monitoring for link configuration and power management
  • Implements Hot Plug Detect (HPD) for deep power saving
  • GPIO configurable output swing linearity control and Rx equalizer gain setting eliminates need for I2C register configuration
  • High-Speed redriver path supports DP++ mode that targets DP to HDMI interface use
  • Supports maximum voltage limit (Vvoltage_jump) to align to the latest system platform capabilities
  • Integrated termination resistors provide impedance matching on transmit and receive sides
  • Good linearity over the frequency band and voltage dynamic range
  • Excellent Differential return loss performance
  • Pin-out minimizes PCB crosstalk effects
  • Low active current consumption for output linearity control setting of 950 mVppd
    • 1-lane DP: 62 mA (typ)
    • 2-lane DP: 125 mA (typ)
    • 4-lane DP: 250 mA (typ)
  • Power–saving state:
  • DisplayPort sleep D3 mode: 3.2 mA (typ)
  • 10 μA (typ) when in deep power-saving state (when HPD is LOW)
  • Power Supply 1.7 V to 1.9 V
  • Small high performance HWFLGA36 package
    • 2.1 mm x 6.0 mm x 0.6 mm with 0.4 mm pitch
  • ESD HBM 1.5 kV CDM 1 kV
  • Operating temperature range -20 °C to +85 °C

USB Redriver Products

PTN38007 New PTN3944 New PTN38003A New PTN3816 New PTN36502 PTN36043A PTN36241G PTN36001
Features Combo USB4 20 Gbps TBT3, DP 2.0, USB3 Linear redriver PCIe Gen4 16 Gbps 4-channel Linear equalizer Combo USB3/DP 1.4 10 Gbps Linear redriver DP 1.4/DP 2.0 4-lane 20 Gbps Linear redriver Combo USB 5 Gbps DP 1.2 Limiting redriver USB 5 Gbps Limiting redriver USB 5 Gbps Limiting redriver USB 5 Gbps Limiting redriver
Port Configuration 4 : 4 4-Channel 4 : 4 4-lane 4 : 4 1 x 2 Single Port Single Port
Power Supply 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V
Rx equalizer TX De-Emphasis Control I2C I2C I2C GPIO I2C and GPIO GPIO GPIO GPIO
Power Consumption (all lanes active at highest data rate) 450 mW 450 mW 450 mW 450 mW 405 mW 203 mW 189 mW 200 mW
Package HWFLGA36
2.1 x 6.0 x 0.6 mm,
0.4 mm pitch		 HWFLGA36
2.1 x 6.0 x 0.6 mm,
0.4 mm pitch		 HWFLGA36
2.1 x 6.0 x 0.6 mm,
0.4 mm pitch		 HWFLGA36
2.1 x 6.0 x 0.6 mm,
0.4 mm pitch		 DXHQFN24
2.4 x 2.0 x 0.35 mm,
0.4 pitch		 DXHQFN18
2.4 x 2.0 x 0.35 mm,
0.4 pitch		 X2QFN12
2.4 x 2.0 x 0.35 mm,
0.4 pitch		 X2QFN12
2.4 x 2.0 x 0.35 mm,
0.4 pitch
Target Application Computing Enterprise Server Mobile / computing Computing Mobile Mobile Mobile Computing

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