Liquid Instruments SW-Pro-DFB Digital Filter Box

Overview

The SW-Pro-DFB digital filter box upgrade for Moku:Pro enables interactive design and deployment of infinite impulse response filters with two sampling rate options (305.18 kHz or 39.063 MHz). Supporting seven filter types including Butterworth, Chebyshev, Elliptic, Bessel, Gaussian, and Legendre, with four filter shapes (lowpass, highpass, bandpass, bandstop), this module delivers sub-microsecond latency and can be deployed independently or as part of a Multi-instrument Mode configuration.

Key Features

• Sampling rates: 305.18 kHz or 39.063 MHz
• Filter types: Butterworth, Chebyshev I & II, Elliptic, Bessel, Gaussian, Legendre
• Filter shapes: lowpass, highpass, bandpass, bandstop
• Configurable filter order: 2, 4, 6, or 8
• Input-output latency: sub-microsecond
• Input range: ±20 V; output range: ±5 V into 50 Ω
• 4 input and 4 output channels with optional blending
• Built-in 4-channel oscilloscope for signal-processing chain monitoring
• Interactive frequency and phase response design tools
• Support for custom filter designs
• API support: Python, MATLAB, LabVIEW

Applications

• Custom phase-locked loop design
• Gravitational wave detection
• Closed-loop control systems
• Pound-Drever-Hall technique
• Precision spectroscopy