XRT83SH38ES View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT83SH38ES' PDF : 78 Pages View PDF
XRT83SH38
8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.7
SIGNAL NAME
TERSEL1
TERSEL0
TEST
ICT
BGA
LEAD #
T11
R11
U12
V12
TYPE
DESCRIPTION
I Termination Impedance Select
Hardware Mode Only
These pins are used to select the transmitter and receiver impedance. By default,
the impedance is set to 100Ω.
"00" = 100Ω
"01" = 110Ω
"10" = 75Ω
"11" = 120Ω
NOTE: These pins are internally pulled "Low" with a 50kΩ resistor.
I Factory Test Mode
For normal operation, the TEST pin should be tied to ground.
NOTE: Internally pulled "Low" with a 50kΩ resistor.
I In Circuit Testing
When this pin is tied "Low", all output pins are forced to "High" impedance for in cir-
cuit testing.
NOTE: Internally pulled "High" with a 50KΩ resistor.
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