Is it necessary to configure AD9271 when using it?
Now, I control AD9271 through FPGA, only DCO and FCO have clock output, but DOUTx has no output (a high level).
How can I solve this problem?
Thank you.
AD9271
Production
The AD9271 is designed for low cost, low power, small size, and ease of use. It contains eight channels of a variable gain amplifier (VGA) with low noise...
Datasheet
AD9271 on Analog.com
Is it necessary to configure AD9271 when using it?
Now, I control AD9271 through FPGA, only DCO and FCO have clock output, but DOUTx has no output (a high level).
How can I solve this problem?
Thank you.
The AD9271 defaults to run state (0x08=0x00), are you able to read SPI registers? and have you tried to enable a test pattern using 0x0D register?