Moku:Delta
Precision meets speed and adaptability in one reconfigurable platform.
Product Overview
Moku:Delta is a versatile, high-performance, software-defined test and measurement platform, purpose-built for precision, flexibility, and real-time performance. It features eight 2 GHz 14-bit and 20-bit analog inputs, eight 2 GHz 14-bit analog outputs, and 32 bidirectional digital I/O channels. Powered by a Xilinx® UltraScale+™ RFSoC FPGA, Moku:Delta supports integrated signal processing, control, analysis, and waveform synthesis in a single cohesive platform. The ultra-stable, ± 1 ppb, onboard reference clock and advanced timing options, including 10 MHz, 100 MHz, and GPS-disciplined references, ensure accurate synchronization. Moku:Delta enables engineers and scientists to develop test systems that combine high-performance instrumentation with user-defined, hardware-accelerated algorithms.
The Moku:Delta front panel features eight analog input channels (1-8) and eight analog output channels (1-8), along with indicators for 'Input', 'Output', 'Test', and 'Host' status. Connectivity options include Ethernet, SFP, QSFP, and USB-C, with clock reference options of 10 MHz, 100 MHz, and GPS.
Specifications
Analog Inputs
- 8 channels, 5 GSa/s
- 14-bit and 20-bit ADCs with frequency-dependent blending
- Input noise: < 10 nW/√Hz
- AC and DC coupling, 50 Ω and 1 MΩ input impedance
- Input ranges: 100 mVpp, 1 Vpp, 10 Vpp, and 40 Vpp
Analog Outputs
- 8 channels, 10 GSa/s
- 14-bit DACs
- Output range (into 50 Ω): ± 500 mV up to 2 GHz, ± 5 V up to 100 MHz
Additional I/O
- 2 sets of 16 bidirectional DIO pins
- TTL trigger input
- External clock reference input and output
- High-speed connectivity: 100 Gb/s QSFP, two 10 Gb/s SFP, 1 Gb/s Ethernet
- GPS timing reference module
- Optional WiFi connectivity via an external adapter
Hardware Highlights
- Exceptional low-frequency noise performance: 500 µV RMS noise at full input bandwidth
- ± 1 ppb onboard clock stability
- Internal 1 TB SSD for data logging and deep memory captures
- Input-output delay: 127 ns
A Suite of Powerful Instruments
- Arbitrary Waveform Generator
- Data Logger
- Digital Filter Box
- FIR Filter Builder
- Frequency Response Analyzer
- Laser Lock Box
- Lock-in Amplifier
- Logic Analyzer
- Neural Network
- Oscilloscope
- Phasemeter
- PID Controller
- Spectrum Analyzer
- Time & Frequency Analyzer
- Waveform Generator
Programming Environments
- Integrated system: MokuOS 4
- Intuitive Windows, macOS, iPadOS, and visionOS apps
- Full API support for Python and MATLAB
- Program the onboard FPGA in VHDL or Verilog for custom, real-time signal processing
Applications
- Optical metrology and spectroscopy
- Quantum computing
- Cold-atom and quantum optics experiments
- Multi-harmonic or multi-system detection
- System prototyping and simulation
- Automated test sequencing
- Closed-loop control design
- Synchronized Waveform Generators and receivers for phased-array, MIMO applications
- High-bandwidth data streaming to network storage
- High-frequency mixed domain analysis
- Implementing real-time Neural Networks
Key Features Highlighted
Multi-Instrument Mode
Deploy up to eight instruments simultaneously. Create custom test sequences and complex measurement workflows. Each instrument has full access to all analog inputs, outputs, and adjacent instrument slots. A low-latency, real-time up to 80 Gb/s signal path connects the slots, enabling independent operation or tightly integrated signal processing pipelines. Swap instruments dynamically or deploy custom algorithms using Moku Cloud Compile for advanced, application-specific functionality.
The Moku:Delta software interface (MokuOS) enables multi-instrument operation, allowing users to configure and run instruments like Oscilloscope, Spectrum Analyzer, Waveform Generator, Lock-in Amplifier, and PID Controller. These instruments can be interconnected via signal buses, managed through input/output controls, and enhanced with cloud compilation for custom algorithms.
High-Bit-Depth 2 GHz Oscilloscope
With eight analog inputs sampled simultaneously at 14 bits and 5 GSa/s, Moku:Delta delivers a new performance benchmark for precision signal acquisition. A dedicated 20-bit, 40 MSa/s path with advanced frequency-dependent ADC blending achieves a noise floor below 10 nW/√Hz, unlocking exceptional dynamic range and low-noise performance across the entire device bandwidth. With four 10 GSa/s DACs and 32 digital I/O channels, Moku:Delta supports precise signal synthesis and complex mixed-signal test scenarios.
2 GHz Lock-in Amplifier
The Moku:Delta digital Lock-in Amplifier performs dual-phase demodulation (X/Y or R/θ) from DC up to 2 GHz, with over 120 dB of dynamic reserve. Demodulate using the onboard Waveform Generator or phase-lock to an external reference at the fundamental, harmonic, or subharmonic. Blended ADC technology delivers a consistently low noise floor across the full 2 GHz input bandwidth. Built-in probe points make it easy to monitor and log signals at key stages of processing. A built-in PID Controller supports closed-loop control and phase-locked loop applications.
The Lock-in Amplifier's signal processing chain involves a low-pass filter, gain control, and demodulation using a local oscillator, with options for auxiliary oscillators and phase adjustments.
A graph illustrates the Linear Power Spectral Density (V²/Hz) versus Frequency (Hz), showing a typical noise floor that decreases significantly with increasing frequency, reaching approximately 10⁻⁹ V²/Hz at 2 GHz.
