PTN3944EWY

PTN3944EWY is a high-performance multi-channel (x4) linear equalizer that is optimized for PCIe 4.0, UPI, and similar high-speed interfaces. PTN3944 addresses high-speed signal quality enhancement requirements for implementation of PCIe and UPI interfaces. The device provides programmable linear equalization, output swing linearity control by pin strapping or I2C control to improve signal integrity and enable channel extension by reducing Inter-Symbol Interference (ISI). The equalizer supports use across a variety of channel conditions. PTN3944 is powered from a 1.8 V supply. It is available in a small high performance HWFLGA36 package.

• Supports PCIe Gen1 (2.5 Gbps) x4, Gen2 (5 Gbps) x4, Gen3 (8 Gbps) x4, and Gen4 (16 Gbps) x4
• Configurable via I2C interface
• Supports maximum voltage limit (Vvoltage-jump) to align to the latest system platform capabilities
• Integrated termination resistors provide impedance matching on both transmit and receive sides
• RX equalizers on all high-speed channels to compensate for signal attenuation
• Good linearity over the frequency band (DC to Nyquist Frequency) and input voltage dynamic range
• Differential I/P/O/P return loss performance <lt/> -15 dB up to 8 GHz
• Flow-through pin-out to ease PCB layout and minimize crosstalk effects
• Low active current consumption for output swing linearity control of 950mVppd
• ESD HBM 1.5kV, CDM 1kV, operating temperature range -20°C to +85°C