Astronics / EADS / Racal 3152B Precision PLL Waveform Generator

The Astronics/EADS/Racal 3152B is a precision PLL waveform generator housed in a single-slot C-sized VXIbus module. It combines function generator and arbitrary waveform generation capabilities, delivering standard waveforms (sine, square, triangle, ramp, pulse, DC, exponential, Gaussian pulse, sinc) and user-defined arbitrary waveforms with exceptional frequency stability through phase-locked loop architecture.

## Technical Specifications

**Waveform Generation**
• Standard waveforms: 100 µHz to 50 MHz
• Arbitrary waveforms: 100 mHz to 100 MHz clock rate
• Sampling rate: 250 MS/s continuous mode
• Vertical resolution: 12 bits
• Frequency sweep: Linear or logarithmic, sine/square to 100 MHz, triangle to 16 MHz

**Phase-Locked Loop**
• External lock range (standard): 500 Hz to 10 MHz
• External lock range (arbitrary): 500 Hz to 100 MHz
• Input voltage: 100 mV to 30 Vrms
• Phase offset: ±180° coarse, ±36° fine (0.01° resolution)
• Phase accuracy: 2% ± sample clock period
• Frequency readback: 4-digit counter (0-10 MHz, ≤30 Vrms input)

**Frequency Synthesis**
• Standard reference: CLK10 at 100 ppm accuracy
• Optional TCXO: 1 ppm accuracy and stability
• Frequency resolution: 7-digit standard, 11-digit synthesis
• Synthesis accuracy: Up to 1 ppm

**Modulation**
• Amplitude modulation: 10 Hz to 500 Hz rate, 1% to 200% depth
• Phase modulation: PLL mode operation

**Advanced Sequencing**
• Waveform linking: Up to 4096 segments and/or bursts

## Key Features

• Dual-mode operation merges arbitrary and function generation in one module
• PLL synchronization enables phase-coherent multi-waveform synthesis
• Programmable phase offset with 0.01° fine resolution
• Integrated frequency counter functionality
• Temperature-stabilized clock option for long-term accuracy

## Typical Applications

• Stimulus generation for analog and mixed-signal test benches
• Frequency sweep testing and characterization
• Phase-coherent multi-channel stimulus generation
• Arbitrary waveform synthesis for complex signal simulation

## Compatibility & Integration

VXIbus single-slot C-size form factor enables direct integration into VXI chassis systems.