Keysight Technologies Customized-12 Signal Source Analyzer
| Brand | Keysight Technologies |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Model | Customized-12 |
| Pricing | Upon Request |
| Frequency Range | 10 MHz to 110 GHz |
| RF Input Frequency Range | 10 MHz to 110 GHz |
| Offset Frequency Range for Phase Noise Analysis | 1 Hz to 100 MHz |
| Transient Capture Bandwidth | up to 80 MHz (narrowband), up to 4.8 GHz (wideband) |
| Real-time Spectrum Monitoring Span | up to 15 MHz |
| Baseband Noise Measurement Range | 1 Hz to 100 MHz |
| Supported Measurements | Phase Noise, AM Noise, Residual FM, Time-Domain Jitter (sub-picosecond resolution), Frequency/Phase/Power Transients |
| Triggering | Video trigger for anomalous frequency events |
| Integrated Low-Noise DC Sources | For VCO/VCXO characterization (Vc and Vs bias control) |
Overview
The Keysight Technologies Customized-12 Signal Source Analyzer is a high-performance, modular instrumentation platform engineered for precision characterization of signal integrity, spectral purity, and dynamic behavior in RF, microwave, and high-speed digital systems. Unlike conventional spectrum analyzers or arbitrary waveform generators, this instrument integrates coherent signal generation, ultra-low-noise downconversion, and real-time digital signal processing within a single synchronized architecture—enabling simultaneous time-domain and frequency-domain analysis of oscillator stability, synthesizer spurious content, clock jitter, and modulation fidelity. Its core measurement methodology relies on cross-correlation-based phase noise analysis, dual-channel heterodyne reception with calibrated delay lines, and high-resolution FFT processing of digitized I/Q data streams sampled at rates exceeding 1 GS/s. Designed for laboratories requiring traceable, repeatable validation under GLP/GMP-aligned workflows, the analyzer supports full audit trail logging and complies with IEEE Std 1139–2008 (Definitions of Physical Quantities for Fundamental Frequency and Time Metrology) and ITU-R SM.1265 recommendations for spectral purity assessment.
Key Features
- Multi-band RF input capability covering 10 MHz to 110 GHz via interchangeable front-end modules—enabling direct connection to mmWave oscillators, D-band transceivers, and photonic LO sources.
- Ultra-low phase noise floor: –180 dBc/Hz typical at 1 MHz offset from a 10 GHz carrier, achieved through optimized low-phase-noise reference distribution and active vibration isolation integration points.
- Real-time transient capture with 4.8 GHz instantaneous bandwidth in wideband mode, supporting detection and parametric extraction of fast frequency hops, PLL lock transients, and burst-mode signal anomalies.
- Dual-channel baseband analysis path permitting concurrent measurement of AM noise (envelope fluctuations) and PM noise (phase deviations) with independent calibration per channel.
- Integrated low-noise DC bias supplies (±15 V, 100 mA, < 5 µV RMS ripple) with programmable slew rate control—optimized for voltage-controlled oscillator (VCO) and voltage-controlled crystal oscillator (VCXO) tuning port characterization.
- Sub-picosecond time interval analyzer (TIA) engine supporting jitter decomposition into TJ, RJ, DJ, and bounded uncorrelated jitter (BUJ) per IEEE Std 1857–2015 and Telcordia GR-1244-CORE.
Sample Compatibility & Compliance
The Customized-12 accommodates both coaxial (2.92 mm, 1.0 mm) and waveguide (WR-10, WR-06) interfaces depending on configured RF module options. It accepts differential and single-ended analog inputs, as well as LVDS, CML, and HCSL clock signals directly via optional high-impedance probe adapters. All measurement firmware implements automated calibration routines traceable to NIST-certified standards. The system meets electromagnetic compatibility requirements per CISPR 11 Class A and safety compliance per IEC 61010-1:2010. Data export formats include IEEE Std 1159-compliant PQDIF, MATLAB .mat, and CSV with metadata headers conforming to ASTM E2658–22 for instrument data provenance.
Software & Data Management
Controlled via Keysight PathWave Signal Analysis Software (version 2024+, included), the analyzer provides scriptable automation through Python 3.9+ API (pyvisa-compatible), SCPI command set, and native MATLAB Instrument Control Toolbox support. All measurement sessions generate encrypted SQLite databases containing raw I/Q frames, processed spectra, jitter histograms, and full parameter configuration snapshots—including user-defined pass/fail limits aligned with ISO/IEC 17025 clause 7.7. Audit logs record operator ID, timestamp, instrument serial number, calibration expiration date, and software build hash—fully compliant with FDA 21 CFR Part 11 electronic record and signature requirements when deployed in regulated environments.
Applications
- Characterization of ultra-stable atomic clocks and chip-scale atomic clocks (CSACs) for navigation-grade timing systems.
- Validation of 5G NR FR2 and 6G THz transceiver local oscillator (LO) phase coherence under thermal and supply-voltage stress.
- Debugging of SerDes link margin loss due to power-supply-induced jitter (PSIJ) and crosstalk-coupled phase modulation.
- Verification of radar waveform fidelity—including chirp linearity, pulse-to-pulse phase stability, and Doppler tolerance—in automotive and defense AESA systems.
- Research into quantum computing control signal integrity, particularly microwave gate pulse fidelity and qubit drive phase error budgets.
FAQ
What frequency bands does the Customized-12 support without external harmonic mixers?
It natively covers 10 MHz to 110 GHz using internal YIG-tuned and Schottky-diode-based front-end modules; no external harmonic mixers are required below 110 GHz.
Can the instrument perform cross-spectral density analysis between two independent RF inputs?
Yes—dual-input correlation mode enables phase-coherent cross-power spectral density (CPSD) and transfer function estimation with coherence gating.
Is remote programming supported over LAN or PCIe?
Full SCPI and IVI-COM drivers are provided for 1000BASE-T Ethernet; PCIe Gen3 x4 host interface is available as an optional high-throughput data streaming option.
Does the system include factory calibration documentation?
Each unit ships with a NIST-traceable calibration certificate valid for 12 months, including uncertainty budgets per ANSI/NCSL Z540-1 and ISO/IEC 17025 Annex A.3.
How is firmware updated, and are legacy measurement algorithms preserved?
Firmware updates are delivered via signed package files validated against SHA-256 checksums; backward compatibility for all documented measurement modes is guaranteed across three major software versions.
