ADS42LB69: SYNCIN input structure

Calvin Field

Part Number: ADS42LB69

I could not find anything in the data sheet regarding the input impedance and bias of the SYNC inputs. Am I correct in assuming it is a high impedance differential receiver lightly biased to 1.2V?

over 8 years ago

0 jim s over 8 years ago

TI__Guru* 91947 points

Calvin,

I am checking with the design team for this info. Based on the driver used on the EVM, it appears this is an LVPECL input. I will reply back with the design teams response.

Regards,

Jim

0 Sourabh Gupta over 8 years ago

TI__Intellectual 785 points

Hi,

The SYNC inputs (SYNCP and SYNCM) are self-biased by device at common mode voltage of 0.95V through internal 1.1k ohms biasing resistors.

Regards,

Sourabh

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ADS42LB69: SYNCIN input structure