Using AD9959 output four channels of different frequency, different pulse width of the linear frequency modulation signal,How to configure the register?Or does AD9959 have this feature?
Yes it is possible and I'd like you to refer to Page 24 of the datasheet. You can use this configuration to all 4 channels ramp up and ramp down behavior. Each channel has a distinct register step size and step rate for the ramp. With that you can set different pulse width of the ramp signal. Also, with this configuration, you can control when to start the pulse through the profile pins.
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