參數(shù)資料
型號: UPD784218YGC
廠商: NEC Corp.
英文描述: Cable; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No
中文描述: 16-/8-bit的單晶片微控制器
文件頁數(shù): 38/92頁
文件大小: 617K
代理商: UPD784218YGC
μ
PD784218, 784218Y
Data Sheet U12304EJ2V0DS00
38
8.6 D/A Converter
A D/A converter converts an input digital signal into an analog voltage. This microcontroller is provided with a
voltage output type D/A converter with a resolution of 8 bits and two channels.
The conversion method is of R-2R resistor ladder type.
D/A conversion is started by setting DACE0 of D/A converter mode register 0 (DAM0) and DACE1 of D/A converter
mode register 1 (DAM1).
The D/A converter operates in the following two modes:
Normal mode
The converter outputs an analog voltage immediately after it has completed D/A conversion.
Real-time output mode
The converter outputs an analog voltage in synchronization with an output trigger after it has completed D/A
conversion.
Figure 8-8. D/A Converter Block Diagram
AV
REF1
AV
SS
DACS0
8
2R
2R
R
R
2R
2R
Selector
ANO0
DACS1
8
2R
2R
R
R
2R
2R
Selector
ANO1
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