Changes

The full programming sequence is detailed in the datasheet and [http://www.analog.com/media/en/technical-documentation/application-notes/AN-1070.pdf application note]. Typically a microcontroller platform (for example [https://www.arduino.cc/ Arduino] or [http://energia.nu/ MSP430] is used to program each waveform generator when the system powered-on.

The gain stage amplifies the output of the sinewave generator. The output of the AD9833 is capacitively coupled to the input of the [http://www.ti.com/product/TL081 TL081], a general purpose op-amp. The TL081 is configured with a potentiometer to allow the gain of the amplifier to be adjusted.