(China (Mainland))
Product Summary
The AD9851BRSZ is a highly integrated device that uses advanced DDS technology, coupled with an internal high speed, high performance D/A converter, and comparator, to form a digitally programmable frequency synthesizer and clock generator function. When referenced to an accurate clock source, the AD9851BRSZ generates a stable frequency and phase-programmable digitized analog output sine wave. This sine wave can be used directly as a frequency source, or internally converted to a square wave for agile-clock generator applications. TheAD9851BRSZ’s innovative high speed DDS core accepts a 32-bit frequency tuning word, which results in an output tuning res o lu tion of approximately 0.04 Hz with a 180 MHz system clock. The AD9851BRSZ con tains a unique 6 REFCLK Multiplier circuit that eliminates the need for a high speed reference oscillator.
Parametrics
AD9851BRSZ absolute maximum ratings: (1)Maximum Junction Temperature: 150℃; (2)Storage Tem per a tur: –65 to +150℃; (3)VS: 6 V; (4)Operating Temperature: –40 to +85℃; (5)Digital Inputs: –0.7 V to +VS + 0.7 V; (6)Lead Temperature (10 sec) Soldering: 300℃; (7)Digital Output Current: 30 mA; (8)SSOP JA Thermal Impedance: 82℃/W; (9)DAC Output Current: 30 mA.
Features
AD9851BRSZ features: (1)180 MHz Clock Rate with Selectable 6 Reference Clock Multiplier; (2)On-Chip High Performance 10-Bit DAC and High Speed Comparator with Hysteresis; (3)SFDR >43 dB @ 70 MHz AOUT; (4)32-Bit Frequency Tuning Word; (5)Simplifi ed Control Interface: Parallel or Serial Asynchronous Loading Format; (6)5-Bit Phase Modulation and Offset Capability; (7)Comparator Jitter <80 ps p-p @ 20 MHz 2.7 V to 5.25 V Single-Supply Operation; (8)Low Power: 555 mW @ 180 MHz; (9)Power -Down Function, 4 mW @ 2.7 V; (10)Ultrasmall 28-Lead SSOP Packaging.
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 AD9851BRSZ |
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IC SYNTHESIZER DDS/DAC 28-SSOP |
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AD9851BRSZRL |
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IC SYNTHESR DDS/DAC 28SSOP TR |
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