ADS42JB69: AC Specifications for 60Msps sampling frequency

bharath

Intellectual 425 points

Part Number: ADS42JB69
Other Parts Discussed in Thread: LMK04828, LMK04616

Dear Sir,

I am planning to use ADS42JB69 16-Bit Dual-Channel ADC in my design.

Requirements,

1. 180MHz I/p frequency at 240Msps sampling frequency.

2. 70MHz I/p frequency at 60Msps sampling frequency.

Since this device supporting the sampling frequency from 60Msps (min.) to 250Msps(max) which meeting my requirements. I have choosen this.

I required AC specifications of the device at 240Msps & 60Msps sampling freq for respective input frequency mentioned.

Regards,
K. Jaya Bharath Reddy

over 8 years ago

0 jim s over 8 years ago

TI__Guru* 91947 points

K. Jaya,

I have attached the data for the test case with the sample clock at 250MHz and the IF at 180MHz. I need to make some changes to the board to get the other data. Hopefully I will have this for you early next week.

Regards,

Jim

ADS42JB69 Test.pptx

0 bharath over 8 years ago in reply to jim s

Intellectual 425 points

Thanks Jim.

Pls share for 70MHz I/P frequency at 60Msps sampling frequency.

I have to generate 60MHz device clock from PLL internally to board.
Required VCO frequency to generate 60MHz & 240MHz is 2400MHz. So, i have choosen LMK04828. but clock divider ration is required as 40. but it supports upto 32.
i have choosen LMK04616 PLL. Whether i can use this PLL for my requirement.

Regards,
K. Jaya Bharath Reddy

0 jim s over 8 years ago in reply to bharath

TI__Guru* 91947 points

K. Jaya,

The 60MHz data is attached. The Altera JESD core clock was at 120MHz and SYSREF was at 3MHz.

Regards,

Jim

ADS42JB69_60_Fs_70_IF.pptx

Data converters

Data converters forum

ADS42JB69: AC Specifications for 60Msps sampling frequency