Number: CS0564145
Contact: Chris Keeney
First name: Chris
Last name: Keeney
Short description: ADS54J20 Inquiry
Email: chris.keeney@saabinc.com
Company: Saab Inc.
Company phone:
Language: English
State: Open
Provide case details or comments:
Q1: Can I clock slower than 1 GSPS and how slo?. The only think I see about less than 1 GSPS is Figure 55, 56 show show down to 700 MSPS.
Q2: Is it possible to just use this device, using only 1 ADC? I like its performance features, but only need 1 … can I leave the other one unused? If so, is there recommended treatment of those I/O, settings to turn off a channel, etc.?
I definitely want to know the min clock rate, but it looks like from Table 10, I can get it down to as low as 250 and Table 12 (if I decide to use that mode) I can get down to 300. I definitely want to use 480 MSPS clock rate for sure if I don't use Decimation. I also might to try up to 960 MSPS with use of Decimation. I know that sounds a little backward, but if I were to be using the Decimation, I'd be using DDC in device versus if I used 480 MSPS, I'd use my own (so wouldn't need I/Q like I would get for decimation).
