82P2821BH IDT, Integrated Device Technology Inc, 82P2821BH Datasheet - Page 72
82P2821BH
Manufacturer Part Number
82P2821BH
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.82P2821BH.pdf
(151 pages)
Specifications of 82P2821BH
Number Of Transceivers
1
Screening Level
Industrial
Mounting
Surface Mount
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Lead Free Status / RoHS Status
Not Compliant
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Miscellaneous
IDT82P2821
Rx: Fully Internal Impedance Matching mode. In this mode, there is no external resistor required. The R_TERM[2:0] bits (b2~0, RCF0,...)
setting is as follows: ‘000’ for T1 100 Ω twisted pair cable, ‘001’ for J1 110 Ω twisted pair cable, ‘010’ for E1 120 Ω twisted pair cable and
‘011’ for E1 75 Ω coaxial cable.
Tx: Internal Impedance Matching mode. The T_TERM[2:0] bits (b2~0, TCF0,...) setting is as follows: ‘000’ for T1 100 Ω twisted pair
cable, ‘001’ for J1 110 Ω twisted pair cable, ‘010’ for E1 120 Ω twisted pair cable and ‘011’ for E1 75 Ω coaxial cable.
Hot switch control
Figure-47 1:1 HPS Scheme, Differential Interface (Individual Transformer)
RIM
OE
RIM
OE
backup card
primary card
21(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
72
Tx
Tx
Rx
Rx
VDDRn
VDDRn
•
•
•
•
VDDTn
VDDTn
VDDRn
VDDRn
VDDTn
VDDTn
•
•
•
•
1:2
1:1
1:2
1:1
February 6, 2009
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