Output swing of TUSB1310A is less

Ashish Narnoli

Other Parts Discussed in Thread: SN74AVC1T45, TUSB1310A

Hello,

I am driving SN74AVC1T45 voltage translator for 1.8 V to 3.3V by PCLK output from TUSB1310A but I am getting a swing of 0.5V to 1.2V instead of 0 to 1.8V.

Please help.

Regards,

Ashish

over 13 years ago

0 Elias Villegas M. over 13 years ago

TI__Guru* 76130 points

Hello Ashish,

What is the frequency of PCLK?

What is the voltage level of VDD1P1 and VDD1P8?

If you disconnect the voltage translator from the PCLK pin, does the level increases?

Regards.

0 Ashish Narnoli over 13 years ago in reply to Elias Villegas M.

Prodigy 160 points

Hello Elias,

The frequency of PCLK is 250MHz as expected and all the voltage levels are correct i.e. 1p1 is 1.09V & 1p8 is 1.8V

I disconnected Voltage translator and then checked PCLK output but didn't see any remarkable improvement. Is there a problem with the drivability of of TUSB1310A?

Regards,

Ashish

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Output swing of TUSB1310A is less