AD9832 Analog Devices, AD9832 Datasheet
AD9832
Manufacturer Part Number
AD9832
Description
CMOS Complete DDS
Manufacturer
Analog Devices
Datasheet
1.AD9832.pdf
(16 pages)
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a
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.
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
FSELECT
FREQ0 REG
FREQ1 REG
FSYNC
BIT
16-BIT DATA REGISTER
8 MSBs
SYNC
SERIAL REGISTER
DECODE LOGIC
SCLK
SELSRC
MUX
8 LSBs
FUNCTIONAL BLOCK DIAGRAM
DVDD
SDATA
SYNC
PHASE0 REG
PHASE1 REG
PHASE2 REG
PHASE3 REG
DGND
ACCUMULATOR
DEFER REGISTER
(32 BIT)
PHASE
FSELECT/PSEL REGISTER
CONTROL REGISTER
AVDD
MUX
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
AGND
12
SELSRC
REFERENCE
ON-BOARD
REFOUT
ROM
SIN
SYNC
SYNC
PSEL0
BIT
FS ADJUST
AD9832
World Wide Web Site: http://www.analog.com
PSEL0 PSEL1
FULL-SCALE
CONTROL
10-BIT DAC
PSEL1
REFIN
BIT
Complete DDS
© Analog Devices, Inc., 1999
COMP
IOUT
AD9832
CMOS
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