AD9483SLASHPCB datasheet(22/26 Pages) AD

tên linh kiện	AD9483/PCB

Giải thích chi tiết về linh kiện	Triple 8-Bit, 140 MSPS A/D Converter

PDF	26 Pages

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nhà sản xuất	AD [Analog Devices]

Trang chủ	http://www.analog.com

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22 / 26 page

AD9483

–22–

REV. A

PCB LAYOUT

The PCB is designed on a four layer (1 oz. Cu) board. Compo-

nents and routing are on the top layer with a ground flood for

additional isolation. Test and ground points were judiciously

placed to facilitate high speed probing. Each channel has a

separate 25-pin connector for it’s digital outputs. A common

ground plane exists on the second layer.

The third layer has the 3 split power planes:

1. 5 V analog for the ADC and preamps,

2. 3.3 V (or 5 V) ADC output supply, and

3. A separate 3.3 V supply for support logic. The fourth layer

contains the –5 V plane for the preamps and additional compo-

nents and routing. There is additional space for two extra com-

ponents on top of the board to allow for modification.

Table IV. 25-Pin Connector Pinout

Pin No.

Pin Name

DR (Data Ready)

GND

3A0

4A1

5A2

6A3

7A4

8A5

9A6

GND

NC (No Connect)

DRB (Data Ready Bar)

GND

NC (No Connect)

AD9483/PCB bảng dữ liệu(PDF) 22 Page - Analog Devices