82P2821BH IDT, Integrated Device Technology Inc, 82P2821BH Datasheet - Page 123

• 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

8.3
Physical And Electrical Specifications
IDT82P2821
Note:
1. Test conditions: VDDx (typical) at 25 °C operating temperature (ambient).
2. The R_OFF bit (b5, RCF0,...) and T_OFF bit (b5, TCF0,...) are set to ‘1’ to enable per-channel power down.
3. The transmitter is in Internal Impedance Matching mode and the receiver is in Fully Internal Impedance Matching mode. That is, the R120IN bit (b4, RCF0,...) is set to ‘1’. And the
T_TERM[2:0] bits (b2~0, TCF0,...) and R_TERM[2:0] bits (b2~0, RCF0,...) are set according to different cable conditions.
4. The transmitter is in Internal Impedance Matching mode and the receiver is in Partially Internal Impedance Matching mode. That is, the R120IN bit (b4, RCF0,...) is set to ‘0’. And the
T_TERM[2:0] bits (b2~0, TCF0,...) and R_TERM[2:0] bits (b2~0, RCF0,...) are set according to different cable conditions.
5. For E1 mode, both the transmitter and the receiver are in External Impedance Matching mode. That is, the T_TERM[2:0] bits (b2~0, TCF0,...) are set to ‘111’ and the R_TERM[2:0]
bits (b2~0, RCF0,...) are set to ‘1xx’. For T1/J1 mode, as the transmitter External Impedance Matching mode is not supported, the transmitter is in Internal Impedance Matching mode
and the receiver is in Internal Impedance Matching mode. That is, the T_TERM[2:0] bits (b2~0, TCF0,...) are set according to different cable conditions and the R_TERM[2:0] bits
(b2~0, RCF0,...) are set to ‘1xx’.
E1/120 Ω
T1/100 Ω
J1/110 Ω
E1/75 Ω
Mode
DEVICE POWER CONSUMPTION AND DISSIPATION (TYPICAL)
100% ones
100% ones
100% ones
100% ones
Parameter
PRBS
PRBS
QRSS
QRSS
1.8 V
0.23
0.23
0.23
0.23
0.18
0.18
0.18
0.18
Total Consumption (W)
3.3 V
2.22
3.00
2.40
3.30
2.48
3.66
2.38
3.47
Total
2.45
3.23
2.62
3.53
2.66
3.84
2.56
3.65
R120IN=1
Internal
21(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Fully
2.45
3.23
2.62
3.53
2.66
3.84
2.56
3.65
Total Device Power Dissipation
(for Thermal Consideration, W)
123
3
R120IN=0
Partially
Internal
1.88
2.40
2.28
3.01
2.18
3.08
2.07
2.88
1
4
External
1.59
1.95
1.64
2.06
2.09
2.93
2.03
2.81
5
R120IN=1
Internal
Fully
130
150
100
160
100
150
80
90
Power Down Saving (mW)
3
Per-Channel
R120IN=0
Partially
Internal
120
120
110
60
90
60
80
70
February 6, 2009
4
External
2
40
70
50
80
60
90
60
90
5