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| 型号： | AD9983AKCPZ-140 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 35/44页 |
| 文件大小： | 0K |
| 描述： | IC INTRFACE 8BIT 140MSPS 64LFCSP |
| 标准包装： | 1 |
| 应用： | 视频 |
| 接口： | 模拟 |
| 电源电压： | 1.7 V ~ 3.47 V |
| 封装/外壳： | 64-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 64-LFCSP-VQ（9x9） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
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AD9983A
Rev. 0 | Page 40 of 44
OUTPUTS (BOTH DATA AND CLOCKS)
Try to minimize the trace length that the digital outputs have to
drive. Longer traces have higher capacitance and require more
instantaneous current to drive, which creates more internal
digital noise. Shorter traces reduce the possibility of reflections.
Adding a series resistor of value 50 Ω to 200 Ω can suppress
reflections, reduce EMI, and reduce the current spikes inside of
the AD9983A. If series resistors are used, place them as close to
the AD9983A pins as possible, but 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 AD9983A and creates more
digital noise on its power supplies.
DIGITAL INPUTS
Digital inputs on the AD9983A (HSYNC0, HSYNC1, VSYNC0,
VSYNC1, SOGIN0, SOGIN1, SDA, SCL, and CLAMP) are
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 AD9983A 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 μF capacitor.
These references are used by the input PGA circuitry to assure
the greatest stability. Place them as close to the AD9983A pin as
possible. Make the ground connection as short as possible.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9983AKCPZ-1401 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Performance 8-Bit Display Interface |
| AD9983AKCPZ-170 | 功能描述:IC INTRFACE 8BIT 170MSPS 64LFCSP RoHS:是 类别:集成电路 (IC) >> 接口 - 专用 系列:- 特色产品:NXP - I2C Interface 标准包装:1 系列:- 应用:2 通道 I²C 多路复用器 接口:I²C，SM 总线 电源电压:2.3 V ~ 5.5 V 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:剪切带 (CT) 安装类型:表面贴装 产品目录页面:825 (CN2011-ZH PDF) 其它名称:568-1854-1 |
| AD9983AKCPZ-1701 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Performance 8-Bit Display Interface |
| AD9983AKSTZ-140 | 功能描述:IC DISPLAY 8BIT 140MSPS 80LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 专用 系列:- 特色产品:NXP - I2C Interface 标准包装:1 系列:- 应用:2 通道 I²C 多路复用器 接口:I²C，SM 总线 电源电压:2.3 V ~ 5.5 V 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:剪切带 (CT) 安装类型:表面贴装 产品目录页面:825 (CN2011-ZH PDF) 其它名称:568-1854-1 |
| AD9983AKSTZ-1401 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Performance 8-Bit Display Interface |
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