Front-end analog BW of LTC2500-32

I would not recommend that. An ADC like the LTC2387-18 would be much better suited for that task. Performance of the LTC2500-32 is not very good at 5MHz.

Dear sir,

Thank you for your response..

In our configuration, we have information signal around 5MHZ within a bandwidth of 50KHz..

We want to sample this signal at a rate of around 500ksps and interface this signal directly to a DSP processor . The DSP processor should channel selection and filtering and feed the signal to a audio codec..

We want to operate with lower sampling speed to reduce DSP processing..

The same we want to do for tx path also.. From DSP processor baseband signal I and Q with speed of 500ksps will be fed to DAC and we need to interpolate it to 5MHZ signal..

Please suggest suitable ADC, DSP ,DAC ..

 We are looking for power efficient solution..

My suggestion for the ADC is the LTC2387-18. It is capable of handling the 5MHz input signal. I would suggest going to the DAC and DSP forums to get recommendations for those devices.

Thank you sir,

I understand that with LTC2387-18, I can sample at 500KSPS, the RF signal centered at 5MHZ with BW of 25KHZ using UNDER SAMPLING technique..