Tektronix DPP125B Digital Pre-emphasis Processor

Overview

The Tektronix DPP125B is a Digital Pre-emphasis Processor designed to support high-speed serial testing and BER (Bit Error Rate) applications. It conditions single-ended data and clock signals by adding precision pre-emphasis and equalization, enabling engineers to compensate for channel loss, validate signal integrity, and analyze jitter in systems operating at speeds from 8 Gb/s to 32 Gb/s.

Key Features

• Operating speed range: 8 Gb/s to 32 Gb/s
• Standard 4-tap equalization (optional 9-tap)
• High-pass and low-pass filter designs
• Signal amplification with ±20 dB dynamic range
• Channel and backplane de-embed operations
• Variable gain: 0V to 2.7V with return-to-zero capability
• Standalone operation and BERTScope integration
• Fixed tap delay design
• Jitter pass-through for transparent jitter analysis
• User-configurable DDJ (Data Dependent Jitter)
• S-Parameter importer for channel modeling

Applications

• 100G Ethernet and emerging communication standards testing
• Signal pre-emphasis and CTLE (Continuous Time Linear Equalization) modeling
• High-speed backplane and cable emulation
• Jitter characterization and eye diagram analysis
• Channel loss compensation and signal integrity validation
• Bit Error Rate testing for serial interfaces