NI PCI-5421

NI PCI-5421

Product Name: PCI-5421 Arbitrary Waveform Generator

Product Introduction: 16-bit 100 MS/s AWG based on Direct Digital Synthesis with deep onboard SDRAM, used to generate arbitrary user waveforms, standard functions and sequenced waveform sets.

Category: NI

Description

Technical Specifications:

Bus Interface: PCI
Analog Output: 1 channel, 16-bit DAC, 100 MS/s, ±6 V into 50 Ω
Bandwidth: 43 MHz (-3 dB)
Onboard Memory: 8 MB standard, 32 MB or 256 MB optional
SFDR: 91 dBc at 10 MHz
Output Filter: 7-pole elliptic anti-image filter
Jitter: <1 ps RMS
Generation Modes: Single, continuous, stepped, burst, arbitrary sequence with looping and markers
Optional Digital Output: 16-bit LVDS synchronous digital pattern mode
Triggering: External TTL, RTSI, internal
Operating Temperature: 0 °C to 55 °C
Power: from PCI slot +5 V and +12 V

Functional Features: DDS clock with VCXO, scripted sequence linking up to millions of segments, marker outputs aligned to sample, self-calibration using onboard precision reference.

Application Scenarios: Communication signal synthesis, radar/sonar waveform playback, semiconductor ATE stimulus, audio codec excitation, medical imaging pulse simulation.

Working Principle: Waveform samples stored in SDRAM are read by timing engine, interpolated if enabled, converted by 16-bit DAC, passed through reconstruction filter and amplifier.

Installation Requirements: PCI 2.x slot, adequate airflow due to memory option heat, matched 50 Ω cable to avoid reflections.

Usage Notes: Output is not short-circuit protected indefinitely; 43 MHz analog bandwidth means Nyquist images must be considered; use attenuation for >±6 V needs.

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