C8051F132 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

MFG CO.

C8051F132

Mixed Signal ISP Flash MCU Family

Silicon Laboratories 

C8051F120/1/2/3/4/5/6/7

C8051F130/1/2/3

1.10. 12-bit Digital to Analog Converters

The C8051F12x devices have two integrated 12-bit Digital to Analog Converters (DACs). The MCU data

and control interface to each DAC is via the Special Function Registers. The MCU can place either or both

of the DACs in a low power shutdown mode.

The DACs are voltage output mode and include a flexible output scheduling mechanism. This scheduling

mechanism allows DAC output updates to be forced by a software write or scheduled on a Timer 2, 3, or 4

overflow. The DAC voltage reference is supplied from the dedicated VREFD input pin on the 100-pin TQFP

devices or via the internal Voltage reference on the 64-pin TQFP devices. The DACs are especially useful

as references for the comparators or offsets for the differential inputs of the ADCs.

DAC0

DAC1

VREF

DAC0

VREF

DAC1

SFR's

(Data

and

Control)

Figure 1.15. DAC System Block Diagram

CIP-51

and

Interrupt

Handler

Rev. 1.3

37

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