16 lines
1.0 KiB
Markdown
16 lines
1.0 KiB
Markdown
# Fast-Servo-Prototype-Dac-Afe-Hardware-Patch
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This board is designed for fast-servo prototype rev1.0 to replace its malfunctioning Dac afe circuitry as mentioned in fast-servo repo issues [#62](https://github.com/sinara-hw/Fast_Servo/issues/62), [#64](https://github.com/sinara-hw/Fast_Servo/issues/64), [#65](https://github.com/sinara-hw/Fast_Servo/issues/65).
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This board has two analog stages. 1st Stage is an output buffer for AD9117-2 with 1.25 Gain. 2nd Stage is a 2nd Order Butterworth Low Pass Filter using a LT1568 filter building block. This filter building block is fully specified for single ended output and fully differential output.
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Please read the [installation.md](./installation.md) for detailed installation instructions.
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## Design Specs
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- Power Input: ± 2.5 V
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- Signal Input (IN+ to IN-): ± 400 mV
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- Output Range: ± 0.5 V (Single-ended) or ± 1.0 V (Fully Differential)
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- Intended Output Load: 50 ohm
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- Low Pass Filter Cutoff Frequency (-3dB) = 3.18 MHz
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Note: This board does not have the ability to disable the Dac output on per channel basis.
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