XRT7296 View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

XRT7296

DS3/STS–1, E3 Integrated Line Transmitter

Exar Corporation 

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XRT7296

PIN DESCRIPTION (CONT’D)

Pin #





&

)

"

!

%











&

)

"

!

Symbol

40<

79

7 5

0=

#=

@=

@75

@0

57


75

0

<



 <



0


7


Type

=

=

=

=

=

=

=

=

*

Description

Bipolar Violation Output 1   11 .  3  21  3 + + 

/   1    / ,+  /   /  1 0


7
 +

Receive Binary Data. +  1   1 =*, , . 0=  7 5

Receive Negative Data. 1 +  1 /  . 7


Receive Positive Data 1 +  1 /  . 0


Receive Clock Output 1 +  1   . #

Driver Monitor Output. .   @ +    @0  @75 .

!±  # /+/; 
@=  11 ,+ 1 A @ +  /

Monitor Ring Input @ + . 75 / 3 //  1  . +  .+*

, / ++- ,++ 11

Monitor Tip Input @ + . 0 / 3 //  1  . +  .+,

/ ++- ,++ 11

Analog Ground . + //,-

Transmit Ring Output  @ +    1 +   G . .

1 

Transmit Tip Output.  @ +    1 +   G . . 1



5V Analog Supply (± 5%) . + //,-

Transmit Level Select. 1  ,   1 ,  /., 1   

1 1 , , +  +, .
       ,  /3+ +

1 , , +  +,  0  75 / 3  3-  1  H11H 

H+2H 1 ,+ .  A < H11H  H+2H   3+2

81 1 /3+ +1  + 1  . A < , 3  H+2H '    1

 ,+  +  /./(

81 1 /3+ +1   1  .  + 1 & . A < - 3  

H11H  1 , , ,+ . 1 "%) / 2++  1
   ,+

 +  /./ >,

81 1 /3+ +1   1 & . 1 A < , 3  H11H '  

 1
   ,+  +  /./(

Note: This input pin is only active, for DS3 and STS•1 applications.

In-circuit Testing.  +2  1  /, ++ +  + , ,     11**

/   ++2 . *//,  ++- ,++ 11

Receive Positive Data 79  ,   1 / 3+/;  +  1 .++  .

#

Receive Negative Data 79  ,  . 1 / 3+/;  +  .++  .

#

Note

1 If a bipolar violation occurs, RPOS and RNEG can correspond to the decoded versions of RNDATA and RPDATA respectively. If

DECODIS is high, RPOS and RNEG always track RPDATA and RNDATA respectively.

 



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