AD9850 DDS Synthesizer: Pinout, Schematic and Datasheet

The AD9850 is a highly integrated device, using advanced DDS technology plus internal high-speed, high-speed performance D/A converter and comparator form a complete, digital programmable frequency synthesizer and Clock generator function. 

When referring to an accurate as a clock source, AD9850 generates an analog output sine wave with pure spectrum and programmable frequency/phase. 

The sine wave can be used directly as a frequency source, or convert to a square wave for use in agile clock generator applications. 

AD9850's innovative high-speed DDS core provides A 32-bit frequency tuning word produces an output the 125 MHz reference clock has a tuning resolution of 0.0291 Hz enter. 

The circuit architecture of AD9850 allows to generate Up to one-half of the output frequency of the reference clock frequency (or 62.5 MHz), and the output frequency can be digitally changed (asynchronous) at a rate of up to 23 million new Frequency per second. 

The device also provides five Digitally controlled phase modulation, so that the phase Move its output in increments of 180°, 90°, 45°, 22.5°, 11.25° and any combination thereof. 

AD9850 also contains A high-speed comparator that can be configured to accept The (external) filtered output of the DAC to generate low jitter Square wave output. 

This helps to use the device as Flexible clock generator function. Frequency tuning, control and phase modulation words are Load to AD9850 via parallel byte or serial load format. 

The parallel loading format consists of five iterative loadings 8-bit control word (byte). The first byte control stage Modulation, power-down enable and load format; byte 2 to 5 Contains 32-bit frequency tuning word. 

Serial loading is This is done through a 40-bit serial data stream on a single pin. This AD9850 complete DDS uses advanced CMOS technology

Provide this groundbreaking level of functionality and performance the power consumption is only 155 mW (3.3 V power supply). AD9850 uses a space-saving 28-pin SSOP, Surface mount package. It is designated in Extended industrial temperature range from –40°C to +85°C.

Pin Number: 28

Symbol

Footprint

★25 MHz clock frequency

★ On-chip high-performance DAC and high-speed comparators

★ DAC SFDR> 50 dB @ 40 MHz AOUT

★ 32-bit frequency tuning word

★ Simplified control interface: parallel byte or serial

★ Loading format

★ Phase modulation capability

★ 3.3V or 5V single power supply operation

★ Low power consumption: 380 mW @ 125 MHz (5 V)

★ Low power consumption: 155 mW @ 110 MHz (3.3 V)

★ Power down function

★ Ultra-small 28-pin SSOP package

Analog Devices Inc. AD9850BRS technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. AD9850BRS.

★ Frequency/Phase-Agile Sine Wave Synthesis

★ Digital Clock Recovery and Lock Circuit

★ Communication

★ Digitally Controlled ADC Code Generator

★ Agile Local Oscillator Application

ADI (NASDAQ: ADI) is the world leader in the design, manufacture and marketing of a broad portfolio of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (IC) electronic devices. 

Since our establishment in 1965, we have been focusing on solving engineering challenges related to signal processing in electronic equipment.

 Our signal processing products are used by more than 100,000 customers around the world, and play an important role in converting, regulating and processing real-world phenomena such as temperature, pressure, sound, light, speed and motion into electrical signals for use in a wide array of Electronic equipment.

Download datasheets and manufacturer documentation for Analog Devices Inc. AD9850BRS.