82P2821BH IDT, Integrated Device Technology Inc, 82P2821BH Datasheet - Page 72

• Manufacturer Part Number: 82P2821BH
• Manufacturer: IDT, Integrated Device Technology Inc

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

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