Tektronix DSA72004C 4 Ch 20 GHz Digital Signal Analyzer

The Tektronix DSA72004C is a 4-channel digital signal analyzer delivering 20 GHz bandwidth across all channels for high-speed serial data analysis, RF signal characterization, and complex waveform measurement. Built for communications, aerospace, and defense applications, it combines a 9 ps rise time with advanced triggering and real-time serial decode capabilities to capture and analyze the latest high-speed standards.

Technical Specifications

• 20 GHz bandwidth on all 4 channels (hardware analog: 16 GHz typical; user-selectable DSP enhancement: 20 GHz and 18 GHz)


• 100 GS/s sample rate on 1 or 2 channels; 50 GS/s on all 4 channels


• 9 ps rise time typical, enabling measurement on latest high-speed serial standards


• >300,000 waveforms/second capture rate per channel Memory & Resolution


• 31 MS record length per channel (standard); up to 250 MS per channel with 20XL option


• 8-bit vertical resolution (11-bit with averaging)


• Low internal noise floor with superior signal-to-noise ratio Input Specifications


• 50 Ω ± 3% input impedance; 1 MΩ available with TCA-1MEG adapter


• DC coupling; GND option


• Maximum input: 5.0 VRMS for ≥100 mV/div; 1.0 VRMS for <100 mV/div


• ±5 div position range

Key Features

• Pinpoint® and Visual Triggering for rapid event qualification and troubleshooting


• 6.25 Gb/s real-time serial trigger for NRZ and 8b/10b pattern matching


• Advanced Event Search & Mark (ASM) for waveform and serial bus pattern detection


• Multi-channel triggering and automated serial decode for 8b/10b, I2C, SPI, RS-232/422/485/UART, USB 2.0, and MIPI® D-PHY protocols


• Multi-channel operation with simultaneous 4-channel acquisition

Interfaces & Power

• Four USB 2.0 rear ports; one front USB 2.0 port


• 100–240 VRMS ±10%, 50/60 Hz; 115 VRMS ±10% @ 400 Hz (<870 W)


• CAT II, <1100 VA typical

Typical Applications Serial protocol validation, high-speed transceiver characterization, RF signal analysis, and aerospace/defense signal integrity testing.