RadioLocman.com Electronics ru
Advanced Search +
  

Datasheet Analog Devices AD9834CRUZ-REEL7

Analog Devices AD9834CRUZ-REEL7

Manufacturer:Analog Devices
Series:AD9834
Part Number:AD9834CRUZ-REEL7

20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS

Datasheets

  • Download » Datasheet, PDF, 558 Kb
    Docket ↓
    Data Sheet
    FEATURES
    Narrow-band SFDR >72 dB 2.3 V to 5.5 V power supply Output frequency up to 37.5 MHz Sine output/triangular output On-board comparator 3-wire SPI interface Extended temperature range: -40C to +105C Power-down option 20 mW power consumption at 3 V 20-lead TSSOP 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS AD9834
    Capability for phase modulation and frequency modulation is provided. The frequency registers are 28 bits; with a 75 MHz clock rate, resolution of 0.28 Hz can be achieved. Similarly, with a 1 MHz clock rate, the AD9834 can be tuned to 0.004 Hz resolution. Frequency and phase modulation are affected by loading registers through the serial interface and toggling the registers using software or the FSELECT pin and PSELECT pin, respectively. The AD9834 is written to using a 3-wire serial interface. This serial interface operates at clock rates up to 40 MHz and is compatible with DSP and microcontroller standards. The device operates with a power supply from 2.3 V to 5.5 V. The analog and digital sections are independent and can be run from different power supplies, for example, AVDD can equal 5 V with DVDD equal to 3 V. The AD9834 has a power-down pin (SLEEP) that allows external control of the power-down mode. Sections of the device that are not being used can be powered down to minimize the current consumption. For example, the DAC can be powered down when a clock output is being generated. The part is available in a 20-lead TSSOP. APPLICATIONS
    Frequency stimulus/waveform generation Frequency phase tuning and modulation Low power RF/communications systems Liquid and gas flow measurement Sensory applications: proximity, motion, and defect detection Test and medical equipment GENERAL DESCRIPTION
    The AD9834 is a 75 MHz low power DDS device capable of producing high performance sine and triangular outputs. It also has an on-board comparator that allows a square wave to be produced for clock generation. Consuming only 20 mW of power at 3 V makes the AD9834 an ideal candidate for power-sensitive applications.
    AVDD AGND DGND DVDD CAP/2.5V FUNCTIONAL BLOCK DIAGRAM
    REFOUT FS ADJUST REGULATOR MCLK FSELECT 28-BIT FREQ0 REG MUX 28-BIT FREQ1 REG PHASE ACCUMULATOR (28-BIT) 12 VCC 2.5V ON-BOARD REFERENCE FULL-SCALE CONTROL COMP SIN ROM MUX 10-BIT DAC IOUT IOUTB MSB 12-BIT PHASE0 REG 12-BIT PHASE1 REG MUX MUX DIVIDED BY 2 16-BIT CONTROL REGISTER SERIAL INTERFACE AND CONTROL LOGIC MUX SIGN BIT OUT COMPARATOR VIN AD9834
    FSYNC SCLK SDATA PSELECT SLEEP RESET
    02705-001 Figure 1.
    Rev. D
    Information furnished by Analog Devices is believed to be a ...

Prices

Other Names: AD9834CRUZREEL7, AD9834CRUZ REEL7

Docket:
Data Sheet
FEATURES
Narrow-band SFDR >72 dB 2.3 V to 5.5 V power supply Output frequency up to 37.5 MHz Sine output/triangular output On-board comparator 3-wire SPI interface Extended temperature range: -40C to +105C Power-down option 20 mW power consumption at 3 V 20-lead TSSOP 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS AD9834
Capability for phase modulation and frequency modulation is provided. The frequency registers are 28 bits; with a 75 MHz clock rate, resolution of 0.28 Hz can be achieved. Similarly, with a 1 MHz clock rate, the AD9834 can be tuned to 0.004 Hz resolution. Frequency and phase modulation are affected by loading registers through the serial interface and toggling the registers using software or the FSELECT pin and PSELECT pin, respectively. The AD9834 is written to using a 3-wire serial interface. This serial interface operates at clock rates up to 40 MHz and is compatible with DSP and microcontroller standards. The device operates with a power supply from 2.3 V to 5.5 V. The analog and digital sections are ind...

Slices ↓
Radiolocman facebook Radiolocman twitter Radiolocman google plus