AD9106 Errata

Hi Aaron -

You've identified an error in the register map. I'll check it out in the lab and change the data sheet appropriatly.

Thanks,

Larry

I'm having difficulties with negative gain values (register value doesn't change) for the AD9106. Positive values work fine. What was the verdict on the register bits? At least in Rev B datasheet the register definition has not been changed.

The datasheet describes the gain value as "12-bit gain factor that has a range of ±2.0."

Based on this I would think that the DAC1_DIG_GAIN value is a signed 12-bit value where 0 sets 0 gain, -2048 sets -2.0 gain and 2047 sets almost +2.0 gain? Is this assumption correct?

Best regards

Pauli

I'm having difficulties with negative gain values (register value doesn't change) for the AD9106. Positive values work fine. What was the verdict on the register bits? At least in Rev B datasheet the register definition has not been changed.

The datasheet describes the gain value as "12-bit gain factor that has a range of ±2.0."

Based on this I would think that the DAC1_DIG_GAIN value is a signed 12-bit value where 0 sets 0 gain, -2048 sets -2.0 gain and 2047 sets almost +2.0 gain? Is this assumption correct?

Best regards

Pauli

Hello Pauli, 

Apologies for the delayed response. Kindly refer to A14 from  AD9106/02 FAQs.

Thanks, 

Lorenz