Description:

This module described here is based on ADS9850, a CMOS, 125MHz, and Complete DDS Synthesizer. The AD9850 is a highly integrated device that uses advanced DDS technology coupled with an internal high speed, high performance, D/A converter and comparator, to form a complete digitally programmable frequency synthesizer and clock generator function. All the external components which are needed are integrated on the board and the designer don’t need to care more about the detailed design of ADS9850. The designer only needs to add the power and control signals to driver this module.

Specifications:

  • Signal Frequency output range: 0-40MHz
  • 4 Signal outputs: sine wave outputs and 2 square wave outputs
  • DAC SFDR > 50 dB @ 40 MHz AOUT
  • 32-Bit Frequency Tuning Word
  • Simplified Control Interface: Parallel Byte or Serial Loading Format
  • Phase Modulation Capability
  • +3.3 V or +5 V Single Supply Operation (ADS9850 Module)
  • Low Power: 380 mW @ 125 MHz (+5 V)
  • Low Power: 155 mW @ 110 MHz (+3.3 V)
  • Power-Down Function

Extra Additionals:

  • Reset button
  • ICSP, UART headers (Programming interface)
  • Power input jack connector (DC 9V-12V (500mAh))
  • Power switch
  • Sine and Square BNC output connectors
  • Atmega328P chip based
  • 1,8" TFT Display (ST7735)
  • 2x rotary encoders (to Sine and Square)

Applications:

  • Frequency/Phase–Agile Sine-Wave Synthesis
  • Clock Recovery and Locking Circuitry for Digital
  •  Communications
  •  Digitally Controlled ADC Encode Generator
  •  Agile Local Oscillator Applications


Samples:

Schematic: Download

Firmware:


How to flash:

Manual: Download

BOM (Bill Of Materials): Download or View

PCB Gerber file: Download

3D Models:

Thingiverse: Link

If you want to support me: Donate

Have a nice day!