101-1006 Rabbit Semiconductor, 101-1006 Datasheet - Page 142

• Manufacturer Part Number: 101-1006
• Description: MODULE POWERCORE FLEX 3800
• Manufacturer: Rabbit Semiconductor

Specifications of 101-1006

• Module/board Type: MPU Core Module
• For Use With/related Products: RCM3800
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

B.4.5.2 D/A Converter Circuits
The Prototyping Board has three D/A converter circuits, each with a different settling time:
• DAC0—settling time 0.4 ms
• DAC1—settling time 0.9 ms
• DAC2—settling time 2.5 ms
Figure B-9 shows a schematic for the D/A converter circuits used for DAC1 and DAC2.
The three D/A converters differ in the number and kind of RC filtering stages.
• DAC0 has a faster response filter that is still able to filter out PWM noise. It uses a
• DAC1 has a less expensive 5-pole passive filter that has a slower response, but still
• DAC2 has the least expensive filter, a 3-pole passive filter. The trade-off is a slower
Each D/A converter outputs 3.0 V into a typical 10 kΩ load.
134
5-pole active filter configuration with two op-amps.
filters out PWM noise.
response time for the D/A converter.
Figure B-9. PowerCore Prototyping Board D/A Converter Circuits DAC1 and DAC2
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PowerCore FLEX