Datasheet > EVAL-AD5932EB

EVAL-AD5932EB

更新时间： 2024-01-20 23:05:20

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	470K
描述
Programmable Frequency Scan Waveform Generator

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数据手册

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EVAL-AD5932EB 数据手册

Programmable Frequency Scan

Waveform Generator

AD5932

FEATURES

GENERAL DESCRIPTION

Programmable frequency profile

No external components necessary

Output frequency up to 25 MHz

Burst-and-listen capability

Preprogrammable frequency profile minimizes number of

DSP/microcontroller writes

Sinusoidal/triangular/square wave outputs

Automatic or single pin control of frequency stepping

Power-down mode: 20 μA

The AD5932¹is a waveform generator offering a programmable

frequency scan. Utilizing embedded digital processing that

allows enhanced frequency control, the device generates

synthesized analog or digital frequency-stepped waveforms.

Because frequency profiles are preprogrammed, continuous

write cycles are eliminated, thereby freeing up valuable

DSP/microcontroller resources. Waveforms start from a known

phase and are incremented phase-continuously, which allows

phase shifts to be easily determined. Consuming only 6.7 mA,

the AD5932 provides a convenient low power solution to

waveform generation.

Power supply: 2.3 V to 5.5 V

Automotive temperature range: −40°C to +125°C

16-lead, Pb-free TSSOP

The AD5932 outputs each frequency in the range of interest for

a defined length of time and then steps to the next frequency in

the scan range. The length of time the device outputs a particular

frequency is preprogrammed, and the device increments the

frequency automatically; or, alternatively, the frequency is

incremented externally via the CTRL pin. At the end of the

range, the AD5932 continues to output the last frequency until

the device is reset. The AD5932 also offers a digital output via

the MSBOUT pin.

APPLICATIONS

Frequency scanning/radar

Network/impedance measurements

Incremental frequency stimulus

Sensory applications

Proximity and motion

(continued on Page 3)

FUNCTIONAL BLOCK DIAGRAM

DVDD

CAP/2.5V

DGND

INTERRUPT

STANDBY

AGND

AVDD

AD5932

REGULATOR

VCC

2.5V

BUFFER

SYNCOUT

MCLK

CTRL

SYNC

BUFFER

MSBOUT

VOUT

INCREMENT

CONTROLLER

24-BIT

PIPELINED

DDS CORE

DATA

INCR

10-BIT

DAC

FREQUENCY

CONTROLLER

DATA AND CONTROL

CONTROL

ON-BOARD

REFERENCE

FULL-SCALE

CONTROL

SERIAL INTERFACE

COMP

FSYNC

SCLK

SDATA

Figure 1.

¹Protected by U.S. patent number 6747583; other patents pending.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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