Agilent/Keysight 35654A

The Agilent/Keysight 35654A is a signal processing module for data acquisition systems within modular measurement platforms. It executes advanced digital signal processing operations and real-time analysis through dual Motorola 56002 DSP architecture, with a 20 MHz MC68020 processor and MC68882 floating-point coprocessor. The module integrates via high-speed system bus for synchronized multi-module operation and communicates to host systems through HP-IB interface.

Technical Specifications

• Processor: Motorola MC68020 at 20 MHz with Motorola MC68882 floating-point coprocessor


• Signal Processing: Motorola 56002 DSP chips; dual-chip variant (35654B) available for enhanced throughput


• Memory: 4 Mbytes standard RAM; expandable to 16 Mbytes with option 116


• FFT Performance: 3.5 ms for 1K complex block size (including windowing and bit reversal)


• Real-time Bandwidth: 102.4 kHz


• Data Transfer Rates:

Module-to-module system bus: 2.5 Msamples/sec maximum

Signal processing module to host: 329 kbytes/sec

Module-to-module memory: 1.7 Msamples/sec

Maximum throughput: >1.3 Msamples/sec (with HP 35659A and option AT3)

HP-IB Compliance: IEEE Std 488-1978 (SH1, AH1, T6, TE0, L4, LE0, SR1, RL0, PP0, DC1, DT1, C4, 11)

Key Features

• Downloadable program execution from application software


• Direct data throughput control to disk storage


• Multi-system synchronization via external SMB connectors


• Simultaneous triggering capability across linked systems

Interfaces

• High-speed internal system bus for inter-module communication


• HP-IB for host computer and external controller connectivity


• RS-232 port for hardware diagnostics


• SMB connectors for synchronization and triggering

Typical Applications Engineering and research environments requiring complex mathematical signal analysis, real-time measurement data processing, and coordinated multi-system acquisition operations.