The Keysight M8047A is a PCI Express re-driver that extends backchannel reach by approximately 17 dB in high-speed digital testing applications. It employs a two-stage continuous-time linear equalizer (CTLE) and linear output driver to condition signals across multiple advanced communication standards. The instrument supports NRZ signals up to 28 Gb/s and operates in conjunction with M8000 Series BERT modules or M8100 Series AWG modules under control of M8070B software (v7.2+).
Technical Specifications
• Signal Conditioning: Two-stage CTLE and linear output driver
• Backchannel Reach Extension: Approximately 17 dB
• Data Rate: NRZ signals up to 28 Gb/s (operation beyond 28 Gb/s possible, performance )
• Output Amplitude (Differential): Minimum 360 mVpp; maximum 705 mVpp to 1260 mVpp
• Power Consumption: Maximum 2.5 W
• Operating Temperature: 5 °C to 40 °C
• Storage Temperature: -40 °C to 70 °C
• Physical Dimensions (W × H × D): 110 mm × 80 mm × 170 mm
• Net Weight: 0.28 kg
– Key Features
• AC-coupled differential outputs (2.4 mm connectors)
• USB Type-C control interface
• LED status indicators for output enable and instrument health
• Support for PCI Express (PCIe 4.0 and PCIe 5.0 with appropriate software), CCIX, SAS-4, OIF CEI-56G, and IEEE 802.3 standards
– Typical Applications
• Extended-reach backchannel testing for high-speed digital links
• PCI Express compliance and performance validation
• Serial Attached SCSI (SAS) transmitter characterization
• OIF-CEI electrical performance testing
• Signal equalization and conditioning in receiver compliance verification
– Compatibility & Integration
Works with error detectors M8041A, M8051A, and M8046A. Integrates with M8000 Series BERT and M8100 Series AWG modules (M8195A, M8196A, M8194A). Software ecosystem includes M8070B, N5991 receiver compliance platform, N5939G (PCIe 4.0), D9050PCIC (PCIe 5.0), N5412E (SAS-4), and N6473A (OIF-CEI 4.0) applications.
