101-0570 Rabbit Semiconductor, 101-0570 Datasheet - Page 36

• Manufacturer Part Number: 101-0570
• Description: COMPUTER SNGLBD BL2120 FRCTNLOCK
• Manufacturer: Rabbit Semiconductor

Specifications of 101-0570

• Module/board Type: Single Board Computer Module
• Product: Modules
• Data Bus Width: 12 bit
• Processor Type: Rabbit 2000
• Sram: 128 KB
• Flash: 256 KB
• Timers: 8 bit
• Number Of I/os: 40
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 36 V
• Power Consumption: 1.5 W
• Board Size: 105 mm x 87 mm x 24 mm
• Description/function: Computer Module
• Ram: 512 KB
• For Use With/related Products: BL2120
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3.6 D/A Converter Outputs
Only the BL2100 and the BL2120 models are stuffed with D/A converters. The D/A con-
verter outputs are buffered and scaled to provide an output from 0 V to +10 V.
NOTE: The D/A converter output voltage depends on the original power-supply voltage,
+RAW, so if +RAW < 13 V, the maximum D/A converter output will be +RAW – 3 V.
Figure 19 shows the D/A converter outputs.
W
W
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Figure 19. D/A Converter Outputs
To stay within the maximum power dissipation of the D/A converter circuit, the maximum
D/A converter output current is 10 mA per channel for a power-supply voltage, +RAW, up
to 15 V, and drops to 2 mA per channel for a power-supply voltage of 36 V.
Figure 20. Maximum D/A Converter Output
Current vs. Power-Supply Voltage
The D/A converter inputs are factory-calibrated and the calibration constants are stored in
flash memory. You may calibrate the A/D converter inputs at a later time using the software
functions described in Section 4.4.5, “D/A Converter Outputs.” The GETCALIB.C and
the SAVECALIB.C sample programs in the Dynamic C SAMPLES\BL2100\
Calib_Save_Retrieve folder illustrate how to retrieve and save calibration data.
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Smartcat (BL2100)