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AD9835的产品特征：
●5 V Power Supply
●50 MHz Speed
●On-Chip COS Look-Up Table
●On-Chip 10-Bit DAC
●Serial Loading
●Power-Down Option
●200 mW Power Consumption
●16-Lead TSSOP
AD9835的技术参数：
(TA = +25℃ 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 (B Version) . . . . . . . . . . . . . . . . –40℃ to +85℃
Storage Temperature Range . . . . . . . . . . .–65℃ to +150℃
Maximum Junction Temperature . . . . . . . . . . . . . . . .+150 ℃
TSSOP JA Thermal Impedance . . . . . . . . . . . . . . . 158 ℃/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . .+215℃
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . .+220℃
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 4500 V
AD9835的产品描述：
The AD9835 is a numerically controlled oscillator employing a phase accumulator, a COS 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 50 MHz are supported. Frequency accuracy can be controlled to one part in 4 billion. Modulation is ef-fected by loading registers through the serial interface. A power-down bit allows the user to power down the AD9835 when it is not in use, the power consumption being reduced to 1.75mW.The part is available in a 16-lead TSSOP package.