IDT82P2816BB IDT, Integrated Device Technology Inc, IDT82P2816BB Datasheet - Page 26

• Manufacturer Part Number: IDT82P2816BB
• Description: IC LIU T1/J1/E1 16+1CH 416-PBGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT82P2816BB

• Function: Line Interface Unit (LIU)
• Interface: E1, J1, T1
• Number Of Circuits: 1
• Voltage - Supply: 1.8V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: *
• Includes: Defect and Alarm Detection, Driver Over-Current Detection and Protection, LLOS Detection, PRBSARB / IB Detection and Generation
• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -
• Power (watts): -
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant
• Other names: 82P2816BB

Figure-6 Receive Differential Line Interface with Twist-
ed Pair Cable (transformer-less, non standard compli-
Functional Description
IDT82P2816
Note:
6.0Vpp
1. Two Rr/2 resistors should be connected to VCOM[1:0] that are
coupled to ground via a 10 µF capacitor, which provide 60 Ω
common mode input resistance.
2. In this mode, lightning protection should be enhanced.
3. The maximum input dynamic range of RTIP/TRING pin is
-0.3 V ~3.6 V (in line monitor mode it is -0.3 V ~ 2 V)
Rr/2
Rr/2
ant)
RRINGn
RTIPn
10 µF
VCOM1
IM
VCOM0
16(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
26
3.2.1.2 Receive Single Ended Mode
applications.
supported. External Impedance Matching circuit uses an external
resistor (Rr) only. The value of the resistor is 18.75 Ω (see Figure-7 for
details) when the single end is connected with a 2:1 transformer or is 75
Ω (see Figure-8 for details) when the single end is connected without a
transformer.
the configuration of the R_TERM[2:0] bits (b2~0, RCF0,...) is ignored.
Figure-7 Receive Single Ended Line Interface with Co-
Figure-8 Receive Single Ended Line Interface with Co-
axial Cable (transformer-less, non standard compliant)
Receive Single Ended mode can only be used in 75 Ω coaxial cable
In Receive Single Ended mode, only External Impedance Matching is
In Receive Single Ended mode, the RIM pin should be left open and
4.74 Vpp
4.74 Vpp
Note:
In this mode, port protection should be enhanced.
axial Cable (with transformer)
2:1
Rr = Rr1 + Rr2 = 75 Ω
Rr1
Rr2
Rr
470 nF
470 nF
RRINGn
RRINGn
RTIPn
RTIPn
February 6, 2009
IM
IM