SN65LVDS93B: what receiver will match full 10MHz to 85MHz operational range

Ken Brittain

Part Number: SN65LVDS93B
Other Parts Discussed in Thread: DS90CR287, SN65LVDS94, , DS90CF386, DS90CR288A

I am looking at the SN65LVDS93B, to replace the DS90CR287 devices I am currently using. However the SN65LVDS94 RX device does not go up to 85Mhz. What RX matching device is intended to be used with the SN65LVDS93B to allow full use of the 10MHZ -85MHz clock range. My goal is to replace the DS90CR287/DS90CR288 pair I am using with a device that ha Vccio that can be set to 1.8V, like the SN65LVDS93B.

over 6 years ago

0 Ikechukwu Anyiam over 6 years ago

TI__Mastermind 35130 points

Hi Ken,

The closest we have is the DS90CF386 and DS90CR288A, which have a frequency range of 20 to 85 MHz. Note that you would still need to use level shifters to interface with a 1.8V FPGA, since these are 3.3V devices.
Regards,
I.K.

0 Ken Brittain over 6 years ago in reply to Ikechukwu Anyiam

Prodigy 50 points

Thank you for your confirming that. Is there any roadmap for the SN65LVDS94 or other part to be frequency compliant with the SN65LVDS93B? It is disappointing that there isn't an RX device to match TX device. I am concerned that using multiple level shifters would cause to much skew between the 28 data lines and cause data errors. Do you have a small foot print device that can perform the Level Shifting, and maintain data skew between all 28 data channels?

0 Ikechukwu Anyiam over 6 years ago in reply to Ken Brittain

TI__Mastermind 35130 points

Hi Ken,

There's currently no roadmap for such a device. I will check with the team for suggestions for level shifters and get back to you soon.

Regards,
I.K.

0 Ikechukwu Anyiam over 6 years ago in reply to Ikechukwu Anyiam

TI__Mastermind 35130 points

Hi Ken,

Please see this thread for level shifter recommendations: e2e.ti.com/.../732734

Regards,
I.K.

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SN65LVDS93B: what receiver will match full 10MHz to 85MHz operational range