Datasheet > EVAL-AD5930EB

EVAL-AD5930EB

更新时间： 2024-11-30 05:20:43

品牌	Logo	应用领域
亚德诺 - ADI		脉冲
页数	文件大小	规格书
28页	856K
描述
Programmable Frequency Sweep and Output Burst Waveform Generator

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数据手册

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EVAL-AD5930EB 数据手册

Programmable Frequency Sweep and

Output Burst Waveform Generator

AD5930

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/µcontroller writes

Sinusoidal/triangular/square wave outputs

Automatic or single pin control of frequency stepping

Waveform starts at known phase

Increments at 0° phase or phase continuously

Power-down mode: 20 µA

The AD5930 is a waveform generator with programmable

frequency sweep and output burst capability. 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

and thereby free up valuable DSP/µcontroller resources.

Waveforms start from a known phase and are incremented

phase continuously, which allows phase shifts to be easily

determined. Consuming only 8 mA, the AD5930 provides a

convenient low power solution to waveform generation.

Power supply: 2.3 V to 5.5 V

The AD5930 can be operated in a variety of modes. In

continuous output mode, the device outputs the required

frequency for a defined length of time and then steps to the

next frequency. The length of time the device outputs a

particular frequency is either preprogrammed and the device

increments the frequency automatically, or, alternatively, is

incremented externally via the CTRL pin. In burst mode, the

device outputs its frequency for a length of time and then

returns to midscale for a further predefined length of time

before stepping to the next frequency. When the MSBOUT pin

is enabled, a digital output is generated.

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

20-lead pb-free TSSOP

APPLICATIONS

Frequency sweeping/radar

Network/impedance measurements

Incremental frequency stimulus

Sensory applications

Proximity and motion

BFSK

Frequency bursting/pulse trains

(continued on Page 3)

FUNCTIONAL BLOCK DIAGRAM

INTERRUPT STANDBY

DVDD CAP/2.5V

DGND

AGND AVDD

AD5930

REGULATOR

VCC

2.5V

SYNC

SYNCOUT

MCLK

CTRL

BUFFER

OUTPUT BURST

CONTROLLER

DGND O/P

MSBOUT

DATA

SYNC

INCREMENT

CONTROLLER

24-BIT

PIPELINED

DDS CORE

IOUTB

IOUT

DATA

INCR

10-BIT

DAC

FREQUENCY

CONTROLLER

DATA

AND CONTROL

ON-BOARD

REFERENCE

FULL-SCALE

CONTROL

COMP

CONTROL

SERIAL INTERFACE

REF

FSADJUST

FSYNC SCLK SDATA

Figure 1.

¹Protected by US 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 registered trademarks are theproperty 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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