C8051F352 Datasheet, PDF (25/234 Pages) Silicon Laboratories – 8 k ISP Flash MCU Family

C8051F350/1/2/3
1.5. Two 8-bit Current-Mode DACs
The C8051F350/1/2/3 devices include two 8-bit current-mode Digital-to-Analog Converters (IDACs). The
maximum current output of the IDACs can be adjusted for four different current settings; 0.25 mA, 0.5 mA,
1 mA, and 2 mA. A flexible output update mechanism allows for seamless full-scale changes, and supports
jitter-free updates for waveform generation. IDAC updates can be performed on-demand, scheduled on a
Timer overflow, or synchronized with an external signal. Figure 1.8 shows a block diagram of the IDAC cir-
cuitry.
Data Write
Timer 0
Timer 1
Timer 2
Timer 3
CNVSTR
8-bit Digital ⁸
Input
8
IDA0
Current
Output
8-bit Digital ⁸
Input
Data Write
Timer 0
Timer 1
Timer 2
Timer 3
CNVSTR
8
IDA1
Current
Output
Figure 1.8. IDAC Block Diagram
Rev. 1.1
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