Fast booting transceiver (about 1 sec)

Hi,

We have a large selection of wideband transceivers at the URL below:

https://www.ti.com/rf-microwave/transceivers-transmitters-receivers/rf-sampling-transceivers/products.html

All the units in the list above are in active production and should be available for the foreseeable future.

However, since I am not an expert in this product line I will notify someone that could further help you further.

Regards,

Rafael

Hi,

Thank you for taking the time to answer. Yes, I have checked the list but I am afraid I have not seen even approximated boot/configuration times. Since that is the main driver for the component choice I would really appreciate if someone that has experience knows some device that boots in about a second.

Erik,

What are your other constraints? You mention RF transceiver but do not mention sample rate or channel count. How many RX channels and how many TX channels. This will help us find a better suited recommendation for you.

Regards, Chase

Hi Chase,

We are looking for a 2 or 4 channel transceiver and a bw of at least 40 Mhz (I think most of TI's Transceiver fulfill those). We can probably accommodate using several transceivers in our design but the boot and configuration time is paramount.

Erik,

Most of our direct RF sampling devices are JESD interface which inherently have a longer start up than traditional pipeline LVDS or CMOS interfaced devices. If you are interested in directly sampling any signal between 1-2GHz, the best matching device I can suggest with a sub 1-second configuration time is going to be ADC34RF52. This device you can configure in around 1/2 second if sampling at 1.5GSPS. If lower sample rate, configuration time increases at an inversely proportional rate. Configuration of the ADC requires settling of internal calibration loops which are driven by clock input. If you are capable of mixing signals to baseband external to the ADC, this will allow for many more device options, with lower bring up time and at lower costs as well. Is your system capable of implementing some mixer in the signal chain prior to ADC?

Regards, Chase 

Chase,

That was part of the idea of having a transceiver instead of having and ADC's + DAC's architecture. With the transceiver we can mix the signals, do all the filtering while keeping the design simple.

We had found transceivers that are capable of this sort of boot and configuration times (managed 1.2s) in other provider but they are EOL and we are looking for a suitable replacement. Is there any transceiver in TI's catalogue that is able to boot in this range of time?

Hi Erik,

Understood. Can you share the EOL'd part so we can compare within our product line to check if we have a comparable and suitable device for you? I'm also going to hand this off to another engineer on our team with a better understanding of our transceiver line of products. Kindly await a response from him.

Regards, Chase

Hi,

Of course, the AD9361 is the transceiver that we are currently using with a boot and configuration time of 1.2 seconds. It has been in the market for long enough that it will not be available for the whole lifecycle of our design. Having a device with 10 to 15 years remaining in its lifecycle would be desirable.

Hi Erik,

Thanks for providing this part number. We will review and update you in the next day or so.

Regards, Chase

Thank you