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AD9854 SERIAL PORT PERIPHERAL CIRCUITRY

Question asked by MasterPK on Jul 31, 2014
Latest reply on Aug 20, 2014 by sitti

Hello,

 

I have the AD9854 evaluation board and I have a few questions.

 

1. The software provided can be used for both serial (both 2 and 3 wire) and parallel port programming and communication with the chip, right?

 

2. The evaluation board has a number of additional chips, such as inverters and flip-flops. Do I need all of these when using the serial port? Or are they just for the parallel programming bus?

 

3. For serial programming, which pins do I need for a two-wire and which for three wire communication?

 

4. In particular I would like to know how should I connect and to what in 3-wire and 2-wire serial communication mode pins 17, 18, 19, 20, 21, 22, 71.

 

I am not interested in the FSK/BPSK and OSK functions (pins 29, 30), should I just leave these floating?

 

Since I will be using serial comm, pins 1 to 8 and 14 to 16, should also be tied to VDD or GND, right?

 

I do not want to write my own code. I want to continue using the Analog Devices software.

 

Apologies, but I am a pure analog guy...

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