参数资料
型号: AD9981KSTZ-80
厂商: Analog Devices Inc
文件页数: 2/44页
文件大小: 0K
描述: IC INTERFACE 10BIT ANALOG 80LQFP
标准包装: 90
应用: 视频
接口: 模拟
电源电压: 3.13 V ~ 3.47 V
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(14x14)
包装: 管件
安装类型: 表面贴装
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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