PMODR2R [ETC]
The PmodR2R board provides digital-to-analog conversion using a circuit that has been a staple in engineering design for decades.; 使用已在工程设计的钉了几十年的电路的PmodR2R板提供数字 - 模拟转换。
| 型号： | PMODR2R |
| 厂家： | 
ETC |
| 描述： | The PmodR2R board provides digital-to-analog conversion using a circuit that has been a staple in engineering design for decades. |
| 文件： | 总1页 (文件大小：234K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
PmodR2R™
Reference Manual
www.digilentinc.com
Revision: February 6, 2009
215 E Main Suite D | Pullman, WA 99163
(509) 334 6306 Voice and Fax
Note: This document applies to REV B of the board.
Overview
The PmodR2R board provides digital-to-analog
conversion using a circuit that has been a
staple in engineering design for decades. The
board provides an easy way to gain insight and
experience with R2R circuits.
Features include:
•
•
•
8-bit digital to analog conversion at up
to 25MHz
easy attachment of oscilloscopes to
illustrate the data conversion process
rugged construction
J2 Pin
Signal
20K
Output
D7
D6
D5
P10
10K
10K
10K
20K
20K
20K
P9
P8
Functional Description
The PmodR2R board provides an R2R
resistor divider network that can convert an
8-bit digital input signal to an analog value.
The board uses 20K and 10K resistors, so
very little current is drawn from input source
pins. Separate GND and analog signal-out
connections are provided. The output
analog signal is also connected to a 2-pin
header at J1. J3 provides a 2-pin test point
for easy measurement of analog signals.
P7 D4
P4 D3
10K
10K
10K
10K
20K
20K
20K
20K
D2
P3
P2 D1
P1 D0
20K
GND
Signals and Connector Pinouts
Doc: 502-165
page 1 of 1
Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.
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