The GC2502 is a dual-channel linear equalizer optimized for high-performance data center interconnects running at 25–28Gbaud line rates. It is designed to support protocols such as 100Gbps Ethernet and InfiniBand EDR, with compatibility for both NRZ (25Gbps) and PAM-4 (56Gbps) signaling. The GC2502 provides up to 15dB of equalization at 14GHz and supports a peak frequency response beyond 14GHz, preserving high signal fidelity while extending the reach of copper cables.

With a compact 2.7mm x 4.2mm package, low power consumption, and linear operation, the GC2502 is well-suited for active copper cables and backplane applications. It enhances signal quality by boosting received signals prior to crossing noisy interconnects, and maintains transparency to link training algorithms and adaptive receiver equalization.

Key Features

  • Versatile EQ
  • Dual channel equalization
  • Supports line rates up to 28Gbaud
  • Equalizes channel response beyond 14GHz
  • Handles 64b/66b and 128b/130b encoded data
  • Highly linear
  • Supports NRZ (25Gbps) and PAM-4 (56Gbps)
  • Preserves transmit pre-emphasis and adaptive receiver EQ
  • Compatible with FEC and dynamic rate changes
  • Instantly tracks muted line periods
  • Compact Package
  • 2.7mm x 4.2mm, 38-ball CSP, 0.5mm pitch, RoHS compliant package
  • Ideal for SFP+, SFP28, SFP-DD, DSFP, QSFP+, QSFP28, QSFP-DD, OSFP modules
  • Low Operation Power and Low Standby Power
  • Operates from a single 3.3V power supply
  • Independent per-channel EQ and standby control
  • Typical <150mW per active channel
  • Typical <3.5mW when both channels in standby

Applications

  • Active optical or copper cables
  • High-speed PCB traces and backplanes
  • 100/200/400GbE Ethernet systems
  • InfiniBand EDR and HDR infrastructure
  • Data center interconnect architectures