The GC1122 is a high-performance, dual-channel linear equalizer optimized for next-generation data center and AI infrastructure interconnects operating at 112Gbps PAM-4 (56Gbaud). It is ideal for copper cable and PCB trace applications requiring low latency, high linearity, and robust signal integrity—enabling longer, thinner, and more energy-efficient connections in systems such as QSFP, QSFP-DD, OSFP, OSFP-XD, and FPIO.

The device supports both NRZ (56Gbps) and PAM-4 signaling, with transparent handling of dynamic link training and signal adaptation schemes. Its compact 2.68mm x 4.18mm WLCSP footprint fits within standard connector shells, thereby eliminating the need for additional heat dissipation structures in active copper cables.

GC1122 equalization achieves peak response beyond 35GHz, preserving the fidelity of complex high-speed signal environments. Whether for on-board traces or direct-attach copper links, GC1122 ensures compliant transmission with minimal power consumption and footprint.

Key Features

  • High-speed signal support
  • Dual-channel equalization, upto112Gbps PAM-4 (56Gbaud) and 56Gbps NRZ
  • Wideband EQ for 64b/66b, 128b/130b, 256b/257b encoding
  • Low Inter-channel skew and low Latency (<42ps)
  • Robust Linear performance
  • Preserves signal integrity across silence and dynamic changes
  • Adaptive Receiver EQ
  • Compatible with FEC and pre-emphasis
  • Seamless adaptation for dynamic link rate changes
  • Compact and scalable
  • 2.68mm x 4.18mm, 41-ball WLCSP (0.4mm pitch) halogen-free RoHS Package
  • Ideal for QSFP, QSFP-DD, OSFP, OSFP-XD, FPIO modules
  • Low power operation
  • Single 3.3V supply
  • Low active and standby power
  • Per-channel EQ tuning and standby control

Applications

  • Active copper cables (DAC and ACC)
  • High-speed backplane and PCB trace extension
  • PCIe Gen6/7 systems
  • 800Gbps Ethernet using 8-lane PAM-4
  • Data center and AI interconnect architectures