ADRV9002 DAC resolution

Hi HM,

To begin answering your question, I need to correct your second statement: The high-performance ADC is a 5-bit Continuous Time Delta Sigma ADC (CTDS ADC). The low-power ADC is a 16-bit Voltage Controlled Oscillator (VCO) architecture. 

As for the DACs, I'm assuming you mean the DACs present on the Tx datapath? These are 16-bits wide (Please review TRANSMITTER SIGNAL CHAIN - ANALOG FRONT END (AFE) - DAC in the user guide for more details), however there are also Auxiliary DACs/ADCs which are 12-bits wide (please review AUXILIARY CONVERTERS AND TEMPERATURE SENSOR in the user guide for more details)

Thanks,

Oisín.

If the high-performance ADC is a 5-bit Continuous Time Delta Sigma ADC (CTDS ADC), Then what will be typical SNR performance for the 40MHz Bandwidth?

Is it 5 bit or 16-bit? Pls confirm.

Hi Sugu,

In the user guide under Rx/ORx Signal Chain - Receive Data Chain: Analog Front End there is a section dedicated to the ADC options. Here it describes each ADC option in more detail, but in answer to your question I can confirm that the HP ADC is a 5-bit CTDS ADC, the LP ADC is a 16-bit VCO ADC.

I don't have the exact data you're requesting, I'll look into it over the coming days. In the datasheet under Receiver Specifications there is a host of measurements going through Noise Figure, Image Rejection, etc. across center frequency. Let me know if this data answers your questions.

Regards,

Oisín.

Hi Sugu,

In the user guide under Rx/ORx Signal Chain - Receive Data Chain: Analog Front End there is a section dedicated to the ADC options. Here it describes each ADC option in more detail, but in answer to your question I can confirm that the HP ADC is a 5-bit CTDS ADC, the LP ADC is a 16-bit VCO ADC.

I don't have the exact data you're requesting, I'll look into it over the coming days. In the datasheet under Receiver Specifications there is a host of measurements going through Noise Figure, Image Rejection, etc. across center frequency. Let me know if this data answers your questions.

Regards,

Oisín.