The Rigol DG5251 is a single-channel Function/Arbitrary Waveform Generator delivering 250 MHz sine output capability with Direct Digital Synthesizer (DDS) technology for stable, low-distortion signal generation. Operating as a multifunctional instrument, it functions as a standard function generator, arbitrary waveform generator, IQ baseband/IF source, and optional frequency hopping or pattern generator platform.
Technical Specifications
Frequency and Bandwidth
• Maximum sine output frequency: 250 MHz
• Maximum square wave output frequency: 120 MHz
• Pulse output frequency: Up to 50 MHz
• Frequency resolution: 1 µHz
Arbitrary Waveform Generation
• Sample rate: 1 GSa/s
• Vertical resolution: 14 bits
• Waveform edit length (on instrument): Up to 512 kpts
• Output waveform length: Up to 128 Mpts
• On-board flash memory: 1 GBytes
Waveform Functions
Includes sine, square, ramp, pulse, noise, sinc, exponential rise/fall, ECG, Gauss, haversine, Lorentz, dual tones, and DC. Pulse rise and fall times are independently adjustable.
Modulation Capabilities
Supports AM, FM, PM, ASK, FSK, PSK, and PWM modulation, plus user-defined IQ vector signal modulation. Frequency hopping (optional) provides intervals as low as 80 ns with arbitrary pattern editing. Sweep modes include linear, logarithmic, and step configurations with burst output support.
– Key Features
• 4.3-inch 16M true color TFT LCD display (480 × 272 pixels) for intuitive parameter control
• IQ baseband/IF source capability with IQ modulation support
• Dual USB host ports for external storage and PictBridge printer connectivity
• USB device port for direct PC connection
• LAN interface (10/100M Ethernet) with web-based remote control
• GPIB (IEEE-488.2) and RS-232 connectivity
• Synchronous signal output, modulation input, and 10 MHz clock I/O
• Trigger input/output with TTL-compatible synchronized pulse output
• Optional 16 + 2 channel digital output module
• FAT file system support for internal and external USB storage
– Typical Applications
RF circuit testing, signal integrity analysis, IQ signal generation, frequency hopping source simulation, and baseband/IF signal synthesis for communications and radar applications.
– Compatibility & Integration
Remote operation via GPIB, LAN, or serial interfaces. Supports waveform and state file storage/recall. Accepts external modulation inputs and trigger signals. USB connectivity enables direct integration with PC-based test environments and printer output.
