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MDDS30 resolution and deadzone

http://forum.cytron.io/viewtopic.php?f=4&t=19040

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MDDS30 resolution and deadzone

PostPosted: Tue Jan 30, 2024 9:37 am
by jsmchiang
1. I enquired to Cytro and was told the MDDS30 has +10% and -10% dead zone. By using serial control, would this be overcome?
2. What is the resolution of the output of the MDDS30? (0.5%, 1%, 10% etc ?)
3. Comparing PWM input and Serial input, which has better resolution?

Re: MDDS30 resolution and deadzone

PostPosted: Tue Feb 20, 2024 10:37 am
by waiweng83
1. Yes, serial mode will not have dead zone.

2. Different input mode will have different resolution. eg: Simplified serial = 6-bit, packetized serial = 7-bit, Analog/PWM (locked-antiphase) = 7-bit, Analog/PWM (sign-magnitude) = 8-bit.

3. PWM input in sign-magnitude mode has higher resolution.