DS90LV012A: Asking for the DS90LV012 design suggestion

SHH

Mastermind 30251 points

Part Number: DS90LV012A

Hi Sir,

My customer would like design DS90LV012.

Would you please review U7217 DS90LV012ATMF schematic and layout and provide your comment?

https://txn.box.com/s/6e64d0rixvn2a8e5mqbi7xkdsdegfj73

layout viewer

https://txn.box.com/s/pff0smh6ubz22abb1ctpruzsbkoi67ug

BR,

SHH

over 3 years ago

0 Ikechukwu Anyiam over 3 years ago

TI__Mastermind 35130 points

Hi Scott,

Are you able to explain the purpose of the termination scheme they have on the LVDS input? The resistor values do not provide the input with a termination of 100-ohms like the device is expecting.

Regards,

I.K.

0 SHH over 3 years ago in reply to Ikechukwu Anyiam

TI__Mastermind 30251 points

Hi I.K.

other than the termination, do you see other design concern from your sdie?

BR.

SHH

0 Ikechukwu Anyiam over 3 years ago in reply to SHH

TI__Mastermind 35130 points

Hi Scott,

Other comments:

1. With 200ohm series resistors on the differential input, are they certain the voltage swing is still enough to meet the DS90LV012A LVDS thresholds?

2. Since the inputs are AC coupled they should ensure the data is DC balanced.

Regards,

I.K.

0 SHH over 3 years ago in reply to Ikechukwu Anyiam

TI__Mastermind 30251 points

Hi I.K.,

thanks for your feedback.

DS90LV012 is using for USB2.0 D+ and D- voltage comparator to know the USB in sleep mode or not.

it should be good, right?

BR,

SHH

Interface

Interface forum

DS90LV012A: Asking for the DS90LV012 design suggestion