Taidacent AD9850 compatible with 9851 media converter fiber to ethernet wireless video transmitter signal generator small

AD9850 compatible with 9851 media converter fiber to ethernet wireless video transmitter  signal generator small

This DDS module uses ADI's AD9850 chip, supports up to 125M sine wave, using low-pass filter circuit, support for adjustable signal frequency, can be used as DDS, function generator, etc., is an essential tool for electronic competition, project development.

Feature

1,125 MHz clock rate with optional 6x reference clock multiplier (125MHz active crystal)
2. On-chip high-performance DAC and high-speed comparator
3, DAC SFDR >50 dB (40 MHz AOUT)
4 32-bit frequency tuning words
5, simplified control interface: parallel byte or serial load format
6, phase modulation capability
7, 3.3V or 5V single power supply
8, low power consumption: 380 mW (125 MHz, 5V) 155mW (100MHz, 3.3V)
9, power saving function
10, ultra-small 28-pin SSOP package

Introduction

1. Combine the AD985119850 and the 51 MCU directly, and synthesize the CH340USB to serial download program, which is not only convenient, but also stable and reliable. Users can select the parallel mode or serial mode to configure the DDS internal registers according to specific requirements.
2, support nokia5110 liquid crystal display.
3, you can press the button to control the output frequency.
4, dual complementary sine wave output.
5, 51 single-chip / 0 leads to facilitate the user to add other modules.
6. The power supply design of this module is independent of the single-chip microcomputer and DDS, and adds tantalum and electrolytic capacitors as well as large and decoupled capacitors to ensure the stable output of the module.

Note

The module's DDS chip is compatible with the AD9851 and the AD9850, but the choice of the crystal oscillator is different. The 9851 uses a 30 MHz active crystal oscillator, and the 9850 requires 125 MHz.