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AD5930 bảng dữ liệu(PDF) 1 Page - Analog Devices |
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AD5930 bảng dữ liệu(HTML) 1 Page - Analog Devices |
1 / 28 page Programmable Frequency Sweep and Output Burst Waveform Generator AD5930 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements 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.Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved. FEATURES 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 Power supply: 2.3 V to 5.5 V 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 GENERAL DESCRIPTION The AD59301 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. 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. (continued on Page 3) FUNCTIONAL BLOCK DIAGRAM CONTROL REGISTER DATA 24 INCR SYNC AND CONTROL SYNCOUT DGND O/P MSBOUT IOUTB IOUT COMP MCLK CTRL INCREMENT CONTROLLER FREQUENCY CONTROLLER SERIAL INTERFACE OUTPUT BURST CONTROLLER INTERRUPT AD5930 STANDBY DVDD CAP/2.5V DGND AGND AVDD REF FSADJUST 24-BIT PIPELINED DDS CORE DATA DATA SYNC BUFFER BUFFER 10-BIT DAC FSYNC SCLK SDATA FULL-SCALE CONTROL ON-BOARD REFERENCE REGULATOR VCC 2.5V Figure 1. 1 Protected by US Patent Number 6747583, other patents pending. |
Số phần tương tự - AD5930 |
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Mô tả tương tự - AD5930 |
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