AD9832

Manufacturer Part NumberAD9832
DescriptionCMOS Complete DDS
ManufacturerAnalog Devices
AD9832 datasheet
 
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FEATURES
3 V/5 V Power Supply
25 MHz Speed
On-Chip SINE Look-Up Table
On-Chip 10-Bit DAC
Serial Loading
Power-Down Option
45 mW Power Consumption
16-Lead TSSOP
APPLICATIONS
DDS Tuning
Digital Demodulation
FSELECT
MCLK
BIT
FSELECT
FREQ0 REG
FREQ1 REG
16-BIT DATA REGISTER
FSYNC
REV. A
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
GENERAL DESCRIPTION
The AD9832 is a numerically controlled oscillator employing
a phase accumulator, a sine look-up table and a 10-bit D/A
converter integrated on a single CMOS chip. Modulation
capabilities are provided for phase modulation and frequency
modulation.
Clock rates up to 25 MHz are supported. Frequency accuracy
can be controlled to one part in 4 billion. Modulation is effected
by loading registers through the serial interface.
A power-down bit allows the user to power down the AD9832
when it is not in use, the power consumption being reduced to
5 mW (5 V) or 3 mW (3 V). The part is available in a 16-lead
TSSOP package.
FUNCTIONAL BLOCK DIAGRAM
DVDD
DGND
AVDD
AGND
SELSRC
SYNC
PHASE
MUX
ACCUMULATOR
(32 BIT)
PHASE0 REG
PHASE1 REG
MUX
PHASE2 REG
SYNC
PHASE3 REG
8 MSBs
8 LSBs
DEFER REGISTER
CONTROL REGISTER
DECODE LOGIC
FSELECT/PSEL REGISTER
SERIAL REGISTER
SCLK
SDATA
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Complete DDS
REFOUT
FS ADJUST
REFIN
ON-BOARD
REFERENCE
FULL-SCALE
COMP
CONTROL
12
SIN
IOUT
10-BIT DAC
ROM
AD9832
SYNC
SYNC
SELSRC
PSEL0
PSEL1
BIT
BIT
PSEL0 PSEL1
World Wide Web Site: http://www.analog.com
© Analog Devices, Inc., 1999
CMOS
AD9832