E1.20 RDM (Remote Device Management) Protocol Forums

		E1.20 RDM (Remote Device Management) Protocol Forums > Search Forums
Search Results

Showing results 1 to 2 of 2
Search took 0.00 seconds. Search: Posts Made By: Nigel Worsley

Forum: RDM Physical Layer/Hardware Discussion

December 5th, 2006

Replies: 3

3.3V Biasing

Views: 15,095

Posted By Nigel Worsley

Th equations are: Vbias = Vcc * 1 / ( 1 /...

Th equations are:

Vbias = Vcc * 1 / ( 1 / Rt1 + 1 / Rt2 ) / ( 1 / ( 1 / Rt1 + 1 / Rt2 ) + R1 + R2 )

Rterm = 1 / ( 1 / Rt1 + 1 / ( R1 + R2 ) )

The specification requires Vbias to be...

Forum: RDM Physical Layer/Hardware Discussion

November 30th, 2006

Replies: 3

3.3V Biasing

Views: 15,095

Posted By Nigel Worsley

Change Rt1 to 150R and R1, R2 to 390R. This...

Change Rt1 to 150R and R1, R2 to 390R.

This gives almost exactly the same bias voltage, and is reasonably close to the 120R impedance requirement ( 126R ). Using difficult to obtain ( in small...

Showing results 1 to 2 of 2

All times are GMT -6. The time now is 09:26 PM.