Генератор сигналов схема генератора ic ad9850 модуль

Описание и отзывы

Трекер стоимости

Характеристики

waveform generator ic signal generator circuit ad9850 dds signal generator module

This baby is an improved and upgraded version of the previous AD9851/AD9850, using TFT liquid crystal display, with buttons to make the interface more humane, support for sine wave square wave output, square wave adjustable duty cycle, with a filter circuit and after Magnify the output port.

Hightlights

1,125 MHz clock rate
2, On-chip high-performance DAC and high-speed comparator
3, DAC SFDR > 50 dB (40 MHz AQUT)
4,32-bit frequency tuning word
5, simplified control interface: parallel byte or serial load format
6, phase modulation capability
7,3.3 V or 5V Single Supply Operation
8, low power consumption: 380 mw (125 MHz, 5V)
9,155 mW (100 MHz, 3.3 V)
10, power-saving features

11, ultra-small 28-pin SSOP package

 

Main feature

The AD9850 is a highly integrated device that uses advanced DDS technology and incorporates a high-speed, high-performance digital-to-analog converter and comparator to form a complete digital programmable frequency synthesizer and clock generator. When using a precision clock source as a reference, the AD9850 can produce a spectrally pure frequency/phase programmable analog output sine wave. This sine wave can be used directly as a frequency source or converted into a square wave suitable for agile clock generator applications. The AD9850's innovative high-speed DDS core provides a 32-bit frequency tuning word; for a 125 MHz reference clock input, output tuning resolution The circuit architecture, which can reach 0.0291 Hz. The AD9850 allows an output frequency up to half the reference clock frequency (or 62.5 MHz) to be generated, and the output frequency can be changed digitally (asynchronously) at a rate of up to 23 million new frequencies per second. The device also provides five-bit digitally controlled phase modulation to enable the output to be processed in increments of 180"90", 45", 22.5", 11.25 and any combination thereof. The AD9850 also includes a high-speed comparator that is configured The (external) filtered output of the DAC can be accepted to generate a low-jitter square wave output so that the device can be used as a clock generator. The frequency tuning, control and phase modulation words are all loaded in parallel byte or serial load format. Into the AD9850. The parallel load format consists of five iterative loads of an 8-bit control word (byte). The first byte controls the phase modulation, power saving enable, and the loading format. The second to fifth bytes form the 32 Bit Frequency Tuning Word • Serial loading is accomplished through a 40-bit serial data pit on a single pin. The AD9850 complete DDS utilizes advanced CMOS technology to provide this breakthrough functionality and performance while consuming only 155 mW (+3.3V power supply) .
The AD9850 is available in a space-saving 28-pin SSOP surface mount package and operates over the extended industrial temperature range of -40°C to +85°C.

1. Reset button 2. Control chip 3. Serial chip 4. Buzzer
5, gain adjustment 6, output after amplification 7, sine output (without filtering)
8 · Square wave duty cycle adjustment 9. Square wave output 10. Digital encoder
11, button 12, power supply (6V "9V. Recommended 6V)
13, Power switch 14.TFT LCD 15. USB to serial input