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7906 Datasheet(PDF) 331 Page - Renesas Technology Corp

Part # 7906
Description  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  531 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7906 Datasheet(HTML) 331 Page - Renesas Technology Corp

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D-A CONVERTER
7906 Group User’s Manual Rev.2.0
13-4
13.3 D-A conversion method
13.3 D-A conversion method
The reference voltage VREF is divided according to the value loaded in D-A register i, and it is output as
an analog voltage from pin DAi.
Figure 13.3.1 shows the equivalent circuit diagram of the D-A converter.
2R
RR
R
R
R
RR
2R
2R
2R
2R
2R
2R
2R
2R
LSB
MSB
AVSS
VREF
D-A register i
D-Ai output enable bit
DAi
0
1
01
Note: In this case, the value of D-A register i is “2A16.”
Fig. 13.3.1 Equivalent circuit diagram of D-A converter



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