Liquid Instruments SW-Lab-DFB Digital Filter Box

Overview

The Liquid Instruments SW-Lab-DFB Digital Filter Box is a 2-channel infinite impulse response (IIR) filter module for the Moku:Lab series. It enables interactive design and deployment of lowpass, highpass, bandpass, and bandstop filters with sampling rates up to 15.625 MHz. The module supports seven filter types including Butterworth, Chebyshev, and Elliptic, with fully configurable filter orders from 2 to 8.

Key Features

• Sampling rates: 122.07 kHz, 1.953 MHz, and 15.625 MHz
• Filter orders: 2, 4, 6, 8
• Sub-microsecond input-output latency
• Input ranges: ±0.5 V or ±5 V
• Output range: ±1 V into 50 Ω
• Interactive frequency and phase response visualization
• Built-in 2-channel oscilloscope for signal monitoring
• Seven filter types: Butterworth, Chebyshev I, Chebyshev II, Elliptic, Bessel, Gaussian, Legendre
• Custom filter design support
• API support: Python, MATLAB, LabVIEW

Applications

• System design and optimization
• Closed-loop control systems
• Noise filtering and signal conditioning
• Signal amplification