C8051F020DK Silicon Laboratories Inc, C8051F020DK Datasheet - Page 83
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C8051F020DK
Manufacturer Part Number
C8051F020DK
Description
DEV KIT FOR F020/F021/F022/F023
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Datasheet
1.C8051F020DK.pdf
(272 pages)
Specifications of C8051F020DK
Contents
Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
Processor To Be Evaluated
C8051F02x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F020
Silicon Family Name
C8051F02x
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Silicon Laboratories C8051 F020/021/022/023
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1200
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F020DK
Manufacturer:
SiliconL
Quantity:
10
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8.
Each C8051F020/1/2/3 device includes two on-chip 12-bit voltage-mode Digital-to-Analog Converters (DACs).
Each DAC has an output swing of 0V to (VREF-1LSB) for a corresponding input code range of 0x000 to 0xFFF. The
DACs may be enabled/disabled via their corresponding control registers, DAC0CN and DAC1CN. While disabled,
the DAC output is maintained in a high-impedance state, and the DAC supply current falls to 1 µA or less. The volt-
age reference for each DAC is supplied at the VREFD pin (C8051F020/2 devices) or the VREF pin (C8051F021/3
devices). Note that the VREF pin on C8051F021/3 devices may be driven by the internal voltage reference or an
external source. If the internal voltage reference is used it must be enabled in order for the DAC outputs to be valid.
See
ENCE (C8051F021/3)” on page 93
8.1.
Each DAC features a flexible output update mechanism which allows for seamless full-scale changes and supports
jitter-free updates for waveform generation. The following examples are written in terms of DAC0, but DAC1 opera-
tion is identical. Note that reads from DAC0L return pre-latch data, meaning the value read is the same as the last
value written to this register, not the value at the DAC0L latch. Reads from DAC0H always return the value at the
DAC0H latch.
Section “9. VOLTAGE REFERENCE (C8051F020/2)” on page 91
DACS, 12-BIT VOLTAGE MODE
DAC Output Scheduling
DAC0MD1
DAC0MD0
DAC1MD1
DAC1MD0
DAC0DF2
DAC0DF1
DAC0DF0
DAC1DF2
DAC1DF1
DAC1DF0
DAC0EN
DAC1EN
Figure 8.1. DAC Functional Block Diagram
8
8
8
8
for more information on configuring the voltage reference for the DACs.
8
8
8
8
12
12
REF
REF
Rev. 1.4
DAC0
DAC1
or
Section “10. VOLTAGE REFER-
C8051F020/1/2/3
AGND
AGND
AV+
AV+
DAC0
DAC1
83
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