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參數(shù)資料
型號: AD9981KSTZ-80
廠商: Analog Devices Inc
文件頁數(shù): 2/44頁
文件大小: 0K
描述: IC INTERFACE 10BIT ANALOG 80LQFP
標(biāo)準包裝: 90
應(yīng)用: 視頻
接口: 模擬
電源電壓: 3.13 V ~ 3.47 V
封裝/外殼: 80-LQFP
供應(yīng)商設(shè)備封裝: 80-LQFP(14x14)
包裝: 管件
安裝類型: 表面貼裝
AD9981
Rev. 0 | Page 10 of 44
Pin
Description
POWER SUPPLY
VD (3.3 V)
Main Power Supply.
These pins supply power to the main elements of the circuit. They should be as quiet and filtered as possible.
VDD (1.8 V–3.3 V)
Digital Output Power Supply.
A large number of output pins (up to 35) switching at high speed (up to 95 MHz) generate a lot of power supply
transients (noise). These supply pins are identified separately from the VD pins, so special care can be taken to
minimize output noise transferred into the sensitive analog circuitry. If the AD9981 is interfacing with lower voltage
logic, VDD may be connected to a lower supply voltage (as low as 1.8 V) for compatibility.
PVD (1.8 V)
Clock Generator Power Supply.
The most sensitive portion of the AD9981 is the clock generation circuitry. These pins provide power to the clock PLL
and help the user design for optimal performance. The designer should provide quiet, noise-free power to these pins.
DAVDD (1.8 V)
Digital Input Power Supply. This supplies power to the digital logic.
GND
Ground.
The ground return for all circuitry on-chip. It is recommended that the AD9981 be assembled on a single solid ground
plane, with careful attention to ground current paths.
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