
Multi-Service Access Device For Channelized Interfaces
Telecom Standard Product Data Sheet
Production
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990823, Issue 4
650
20 Power Requirements
Table 75 Power Requirements
Conditions
Parameter
Typ1,3 High4
Max2
Units
IDDOP vddo (3.3V)
0.28
0.321
0.355
A
DS3 disabled (all channels are STS1
rates or greater)
IDDOP vddi (1.8V)
1.29
1.490
1.667
A
IDDOP vddo (3.3V)
0.303
0.350
0.390
A
DS3 enabled (DS3 channels are
added into the mix above)
IDDOP vddi (1.8V)
1.553
1.760
1.964
A
IDDOP avdh (3.3V)
0.014
0.020
0.026
A
Serial disabled
IDDOP avdl (1.8V)
0.027
0.031
0.034
A
IDDOP avdh (3.3V)
0.106
0.113
0.120
A
Serial enabled
IDDOP avdl (1.8V)
0.137
0.159
0.186
A
Serial and DS3 enabled
Total Power
4.392
5.232
W
Notes:
1. Typical IDD values are calculated as the mean value of current under the following conditions: typically
processed silicon, nominal supply voltage, Tj=60 °C, outputs loaded with 30 pF (if not otherwise
specified), and a normal amount of traffic or signal activity. These values are suitable for evaluating
typical device performance in a system.Max IDD values are currents guaranteed by the production test
program and/or characterization over process for operating currents at the maximum operating voltage
and operating temperature that yields the highest current.
2. Typical power values are calculated using the formula:
Power =
∑
i(VDDNomi x IDDTypi)
Where i denotes all the various power supplies on the device, VDDNomi is the nominal voltage for
supply i, and IDDTypi is the typical current for supply i (as defined in note 1 above). These values are
suitable for evaluating typical device performance in a system.
3. High power values are a “normal high power” estimate, calculated using the formula:
Power =
∑
i(VDDMaxi x IDDHighi)
Where i denotes all the various power supplies on the device, VDDMaxi is the maximum operating
voltage for supply i, and IDDHighi is the current for supply i. IDDHigh values are calculated as the
mean value plus two sigmas (2
σ
) of measured current under the following conditions: Tj=105° C,
outputs loaded with 30 pF (if not otherwise specified). These values are suitable for evaluating board
and device thermal characteristics.
4. Max power values are a “maximum high power” estimate, calculated in a similar manner to the High
power values. IDDHigh values are calculated as the mean value plus six sigmas (6
σ
) of measured
current under the same conditions as for the High power values.