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DS345 Function / Arbitrary Waveform Generator

DS345 Function / Arbitrary Waveform Generator
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DS345 Function / Arbitrary Waveform Generator - 1

Synthesized Function Generators DS345 — 30 MHz function and arbitrary waveform generator DS345 Function/Arb Generator · 1 µHz to 30.2 MHz frequency range · 1 µHz frequency resolution · Sine, square, ramp, triangle & noise · Phase-continuous frequency sweeps · AM, FM, burst and phase modulation · 16,300 point arbitrary waveforms · 10 MHz reference input · RS-232 and GPIB interfaces (opt.) Stanford Research Systems The DS345 is a full-featured 30 MHz synthesized function generator that uses an innovative Direct Digital Synthesis (DDS) architecture. It generates many standard waveforms with excellent frequency resolution (1 µHz), and has versatile modulation capabilities including AM, FM, Burst, PM and frequency sweeps. It also generates arbitrary waveforms with a fast 40 Msamples/s update rate. Functions and Outputs The DS345 generates sine waves and square waves at frequencies up to 30.2 MHz, and triangle and ramp waveforms up to 100 kHz. The frequency resolution for all functions is 1 µHz. In addition to the standard waveforms, the unit also provides a wideband (10 MHz) white noise source. Both the function output and a TTL SYNC output are available through floating, front-panel BNC connectors. Both outputs have 50 Ω output impedances and may be floated up to ±40 V relative to earth ground. The amplitude of all function outputs is adjustable from 10 mVpp to 10 Vpp with 3-digit resolution, and can be displayed in Vp, Vpp, Vrms or dBm. In addition, standard TTL and ECL output levels can be selected. Additional useful connectors are provided on the rear panel. A trigger input is used to trigger arbitrary waveforms, modulation patterns, sweeps and bursts, while a TTL trigger output is provided to allow synchronization of external

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DS345 Function / Arbitrary Waveform Generator - 2

DS345 Function/Arbitrary Waveform Generator devices to sweeps and bursts. A sweep output generates a 0 to 10 V ramp synchronous with frequency sweeps. The sweep marker outputs allow specified portions of a frequency sweep to be highlighted on an oscilloscope. A 10 MHz rear-panel input allows the DS345 to be synchronized to an external timebase. A 10 MHz rear-panel output allows multiple DS345s to be phase locked together. Phase modulation selected with 1 % resolution. Negative values of modulation correspond to Double Sideband Suppressed Carrier (DSBSC) modulation. FM spans can be selected...

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DS345 Function / Arbitrary Waveform Generator - 3

DS345 Function/Arbitrary Waveform Generator Arbitrary Waveform Capability The DS345 isn’t just a function generator. It’s also a fullfeatured arbitrary waveform generator. Output waveforms have 12-bit vertical resolution, and can be played back at rates up to 40 Msamples/s. Since composing complex arbitrary waveforms at the keyboard can be a tedious task, Arbitrary Waveform Composer (AWC) software is provided at no charge. AWC is a menu-based program which lets you create and edit arbitrary waveforms on the screen, store them, and download them to the DS345. Burst modulation frequency for...

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DS345 Function / Arbitrary Waveform Generator - 4

Frequency Range Max. Freq. Resolution Sine 30.2 MHz 1 µHz Square 30.2 MHz 1 µHz Ramp 100 kHz 1 µHz Triangle 100 kHz 1 µHz Noise 10 MHz (Gaussian weighting) Arbitrary 10 MHz 40 MHz/N (sample rate) Output Source impedance Grounding 50 Ω Output may float up to ±40 V (AC + DC) relative to earth ground. Amplitude Range 0.01 to 10 Vpp (50 Ω), 20 Vpp (Hi-Z) Resolution 3 digits (DC offset: 0 V) Sine wave accuracy (0 VDC offset) 5 to 10 Vpp ±0.2 dB (1 µHz to 20 MHz) ±0.3 dB (20 MHz to 30.2 MHz) 0.01 to 5 Vpp ±0.4 dB (1 µHz to 20 MHz) ±0.5 dB (20 MHz to 30.2 MHz) Square wave accuracy 5 to 10 Vpp ±3 %...

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DS345 Function / Arbitrary Waveform Generator - 5

Phase Modulation Source Internal (sine, square, triangle, ramp) Rate 0.001 Hz to 10 kHz Span ±7199.999° Interfaces Opt. RS-232 (300 to 19.2 kbaud, DCE) and GPIB with DOS based arbitrary waveform software (AWC). All instrument functions are controllable over the interfaces. Non-volatile memory Nine sets of instrument settings can be saved and recalled. Dimensions 8.5" × 3.5" × 13" (WHD) Weight 10 lbs. Power 50 W, 100/120/220/240 VAC, 50/60 Hz Warranty One year parts and labor on defects in materials and workmanship Frequency Sweep Type Linear or log, phase continuous Waveform Up, down,...

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