GN2504中文资料Low-Power Quad-CDR 25-28Gbps Reference-Free Repeater数据手册Semtech规格书

描述 Description

The GN2504 is a uni-directional quad-CDR retimer designed for reference-free 25-28Gbps signal conditioning on linecards interfacing next-generation modules such as CFP2, CFP4 and QSFP28 and to interface next-generation 25-28Gbps backplanes.

特性 Features

• 4x 25-28Gbps reference-free Clock and Data Recovery with adjustable equalization
• Supports channel loss > 30dB
• Input jitter tolerance after equalization: 0.75UIpp
• Less than 7pspp output jitter
• High-performance serial data inputs
• Sensitivity better than 50mVppd
• Adjustable continuous-time linear equalization

• Flexible serial data output drivers
• Wide programmable swing range
• 200mVppd to 1100mVppd
• Programmable output de-emphasis

• 3D eye monitor
• Programmable lane polarity inversion
• Per-lane loss of signal detection
• Per-lane loss of CDR lock indication
• Optional synchronous monitor clock output
• PRBS 9, 15, 31 generator/checker
• Integrated voltage and temperature sensor
• Integrated I2C Host Interface
• Single 1.8V power supply
• Power dissipation: 525mW
• 5mm x 7mm 54-pin QFN package
• 0.4mm pin pitch

• -20°C to +100°C case operation
• Pb-free/RoHS-compliant

应用 Application

·CEI-28G-VSR 4x25G retimed interfaces

·CAUI-4 4x25G retimed interfaces

·25G to 28G backplanes