參數(shù)資料
型號(hào)： AD9980KSTZ-95
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 36/44頁(yè)
文件大?。?/td> 0K
描述： IC INTERFACE 8BIT ANALOG 80LQFP
標(biāo)準(zhǔn)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
配用： AD9980/PCBZ-ND - KIT EVALUATION AD9980
AD9980
Rev. 0 | Page 41 of 44
Adding a series resistor of value 50 to 200 can suppress
reflections, reduce EMI, and reduce the current spikes inside the
AD9980. If series resistors are used, place them as close to the
AD9980 pins as possible, (although try not to add vias or extra
length to the output trace to get the resistors closer).
If possible, limit the capacitance that each digital output drives
to less than 10 pF. This is easily accomplished by keeping traces
short and by connecting the outputs to only one device. Loading
the outputs with excessive capacitance increases the current
transients inside of the AD9980 and creates more digital noise
on its power supplies.
Digital Inputs
Digital inputs on the AD9980 (HSYNC0, HSYNC1, VSYNC0,
VSYNC1, SOGIN0, SOGIN1, SDA, SCL and CLAMP) were
designed to work with 3.3 V signals, but are tolerant of 5.0 V
signals. Therefore, no extra components need to be added if
using 5.0 V logic.
Any noise that gets onto the Hsync input trace adds jitter to the
system. Therefore, minimize the trace length and do not run
any digital or other high frequency traces near it.
Reference Bypass
The AD9980 has three reference voltages that must be bypassed
for proper operation of the input PGA. REFLO and REFHI are
connected to each other through a 10 F capacitor. REFCM is
connected to ground through a 10 F capacitor. These refer-
ences are used by the input PGA circuitry to assure the greatest
stability. Place them as close to the AD9980 pin as possible.
Make the ground connection as short as possible.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9980KSTZ-RL95 制造商:Analog Devices 功能描述:
AD9980PCB 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance 8-Bit Display Interface
AD9981 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance 10-Bit Display Interface
AD9981/PCB 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance 10-Bit Display Interface
AD9981/PCBZ 制造商:Analog Devices 功能描述:Evaluation Board For The High Performance 10-Bit Display Interface 制造商:Analog Devices 功能描述:EVAL BD FOR THE HI-PERF 10-BIT DISPLAY INTRFC - Bulk
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