PM5381-BI PMC-Sierra, Inc., PM5381-BI Datasheet - Page 566

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PM5381-BI

Manufacturer Part Number
PM5381-BI
Description
ATM UNI, Single Channel ATM PHY Interface for 2488.32Mbps
Manufacturer
PMC-Sierra, Inc.
Datasheet

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Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000489, Issue 4
+3.3V
Figure 50 Optimal OC48 Analog Power Supply Filters
For boards designed with previous revisions of the S/UNI-2488, the follow analog power supply
filtering components can be used. The number of components matches the previously
recommended filter.
Table 32 Backwards Compatible OC48 Analog Power-Supply Filtering Recommendations
Ball
Name
AVDH
AVDH
AVDL
AVDL
AVDH
R=2.7W
R=1W
R=1W
R=1W
R=1W
C=47uF
C=1uF
C=22uF
Ball Location
AB1
AC4, AF4, AG3,
AH2 AJ1, W4,
U3, U4
AD4, AD3, AF2
AA4
AG20, AH20
**
N x C=0.1uF
C=0.1uF
C=0.1uF
C=100pF
C=0.1uF
C=0.1uF
C=100pF
C=100pF
2488_QAVD_T
2488_QAVD_R
2488_AVDH_CRU_RX_JAT
2488_AVDH_TX
2488_AVDH_CSU_REF
VDDO
Label in
Figure 51
AVDH (CSU)
AVDH (TXLV)
AVDL (CSU)
AVDL (analog
core)
2488_QAVD_R
(OC48 analog)
S/UNI-2488
PM5381
VSS
3.3V power for
Function
APS transmitter
power
APS CSU power
APS core power
(except APS CSU)
APS CSU power
S/UNI-2488 Telecom Standard Product Datasheet
2488_AVDL
VDDI
C=100pF C=0.1uF C=1uF
C=100pF C=0.1uF C=1uF
**
Ideally, there should be a 0.1uF high-
frequency capacitor as close as
possible to each cluster of power pins.
Filtering
3.3W + [100nF || 10nF]
3.3W + [1.0uF || 10nF]
(can be paired up -
maximum of 2 per filter)
0.47W + [4.7uF || 10nF]
0W + [100nF || 10nF]
1W + 0.1uF
**
N x C=0.1uF
C=47uF
C=47uF
R=0.5W
R=0.5W
+1.8V
Released
566

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