7906 datasheet(329/531 Pages) RENESAS

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7906 Datasheet(PDF) 329 Page - Renesas Technology Corp

Part #	7906

Description	16-BIT SINGLE-CHIP MICROCOMPUTER

PDF	531 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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329 / 531 page

D-A CONVERTER

7906 Group User’s Manual Rev.2.0

13-2

13.1 Overview, 13.2 Block description

13.1 Overview

The M37906 is provided with two independent D-A converters of the R-2R type with 8-bit resolution. These

D-A converters convert the values loaded in D-A register i (i = 0, 1) to analog voltages and output them from

pin DAi.

13.2 Block description

Figure 13.2.1 shows the block diagram of the D-A converter. The registers related to the D-A converter are

described below.

Data bus

AVSS

R-2R ladder network

D-A register i (i = 0, 1)

(Addresses 9816, 9916)

DAi

D-Ai output enable bit

VREF

Fig. 13.2.1 D-A converter block diagram

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