HP N4875A-ATO-22895

Functions

High-speed parallel bit error rate testing and analysis for digital communication systems operating up to 7 Gb/s data rates. Generates pseudo-random bit sequences and performs real-time error detection, measurement, and statistical analysis of transmitted data streams. Provides eye diagram analysis, jitter measurement, and signal integrity characterization for serial and parallel digital interfaces. Supports multiple data formats and triggering modes for comprehensive testing of high-speed digital circuits, optical transceivers, and communication link performance verification.

Platforms

A modular instrument designed to operate within a ParBERT mainframe system. Functions as a multi-channel 7 Gb/s data analyzer for parallel bit error ratio testing (BERT) and high-speed digital system characterization. Interfaces with a device under test (DUT) via coaxial cable inputs and synchronizes with pattern generator modules within the same chassis. Controlled via an external PC over LAN/GPIB. Applications include semiconductor validation (ASIC/FPGA), compliance testing (SATA, PCIe), and characterization of high-speed backplanes and interconnects.

Applications

High-speed parallel bit error rate testing for characterizing digital communication systems, semiconductor devices, and optical transceivers operating up to 7 Gb/s. Validates signal integrity in backplane designs, chip-to-chip interconnects, and serial data links. Performs pattern generation and error detection for compliance testing of high-speed serial standards including PCIe, SATA, SAS, and Fibre Channel. Enables jitter tolerance testing, receiver sensitivity measurements, and eye diagram analysis. Supports stressed signal generation for margin testing. Used in R&D labs for device characterization, manufacturing test environments for production validation, and field service applications for troubleshooting high-speed digital interfaces.

Accessories

* N4875A-001: Clock input module * N4875A-002: Data input module * N4875A-003: Clock output module * N4875A-004: Data output module * N4875A-010: Trigger input/output module * N4875A-011: Pattern sequencing module * N4875A-020: PRBS and Custom Pattern module * N4875A-200: 12.5 Gb/s upgrade * External clock input: SMA female * Data input/output: SMA female * Trigger I/O: SMA female * GPIB interface: 24-pin D-sub female * LAN interface: RJ45 * USB interface: USB Type A and B

Interfaces

Required associated equipment includes an Agilent/Keysight 86100 series mainframe for power and module backplane interfacing. Control interfaces include GPIB (IEEE 488, 24-pin connector) and LAN (RJ-45, 8P8C connector) for remote PC operation. High-speed data input/output utilizes multiple 2.92mm coaxial connectors for 7 Gb/s differential signals. Auxiliary inputs/outputs feature SMA coaxial connectors for trigger and clock synchronization.

Specifications

A high-speed digital signal analyzer capable of generating and analyzing data patterns for physical layer characterization, conformance testing, and receiver evaluation in high-speed serial communications. Performs bit error rate testing (BERT), jitter generation, stress pattern injection, and signal quality assessment at rates up to 7 Gb/s. Features multiple channels for parallel data testing, automated compliance testing capabilities, and detailed eye diagram analysis. Compatible with various standards including PCIe, SATA, SAS, USB, and Ethernet. Interfaces with oscilloscopes and signal generators for comprehensive signal integrity testing in research, design validation, and manufacturing environments.

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