SN75DP119: Where between the connector and the receiver to place SN75DP119 ?

PYTsai

Genius 12200 points

Part Number: SN75DP119

I got one quick question.

Where between the connector and the receiver should i place SN75DP119 ?

Should i put the chip more closely to the connector or should i put it more closely to the receiver? how to decide?

Thanks!

PY Tsai

over 7 years ago

0 Malik Barton57 over 7 years ago

TI__Guru 64326 points

PYTsai,

In general you should place SN75DP119 closer to the connector however for your application you may need to consider the where the losses will occur and place SN75DP119 after these losses (i.e. SN75DP119 should only be placed where the pre-channel insertion loss is less than max EQ of SN75DP119).

0 PYTsai over 7 years ago in reply to Malik Barton57

TI__Genius 12200 points

Malik,

Got it. Which spec of SN75DP119 should i refer to as max EQ that you mentioned above?

Thanks!
PY Tsai

0 Malik Barton57 over 7 years ago in reply to PYTsai

TI__Guru 64326 points

Py Tsai,

Max receiver EQ for SN75DP119 is 6 dB. See image below from datasheet, see table "Pin Functions, RGY Package".

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SN75DP119: Where between the connector and the receiver to place SN75DP119 ?