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AD9831的产品特征:
●3 V/5 V Power Supply
●25 MHz Speed
●On-Chip SINE Look-Up Table
●On-Chip 10-Bit DAC
●Parallel Loading
●Powerdown Option
●72 dB SFDR
●125 mW (5 V) Power Consumption
●40 mW (3 V) Power Consumption
●48-Pin TQFP
AD9831的技术参数:
(TA = +25°C unless otherwise noted)
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
AVDD to DVDD . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +0.3 V
AGND to DGND. . . . . . . . . . . . . . . . . . . . . .–0.3 V to +0.3 V
Digital I/O Voltage to DGND . . . . . –0.3 V to DVDD + 0.3 V
Analog I/O Voltage to AGND . . . . . –0.3 V to AVDD + 0.3 V
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . –65°C to +150°C
Maximum Junction Temperature . . . . . . . . . . . . . .+150°C
TQFP θJA Thermal Impedance . . . . . . . . . . . . . . . 75°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . .+215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . +220°C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 4500 V
AD9831的产品描述:
This DDS device is a numerically controlled oscillator employ-ing 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 parallel microprocessor
interface.
A powerdown pin allows external control of a powerdown mode. The part is available in a 48-pin TQFP package.