
PM5317 SPECTRA-9953 Telecom Standard Product Data Sheet
Release
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2000741, Issue 5
61
Pin Name
Pin Type
PIN
No.
Function
AVDL4
AE27
AF29
They are connected to the 1.8 V supply via a series 1
resistor with 10 F, 1 F, and 0.1 F capacitors to the ground
plane. The 0.1 F capacitor is to be a high-quality ceramic
capacitor placed as close as possible to the ADVL4 pins of
the chip.
AVDL3: A series 0.47 resistor with 10 F, 1 F, and 0.1 F
capacitors to the ground plane. The 0.1 F capacitor is to be
a high-quality ceramic capacitor placed as close as possible
to the ADVL4 pins of the chip.
AVDL4: A series 1 resistor with 10 F, 1 F, and 0.1
Fcapacitors to the ground plane. The 0.1 F capacitor is to
be a high-quality ceramic capacitor placed as close as
possible to the ADVL4 pins of the chip.
AVSL1
AE28
AVSL2
AN25
AP25
AP30
AP31
AVSL3
AL33
AN23
AVSL4
CSU
Analog
Ground
AD27
AG30
The
quiet CSU analog ground
(AVSL3-AVSL1) pins are
ground supplies for the quiet analog blocks powered from
AVDL3-AVDL1. The noisy analog ground (AVSL4) pin is a
ground supply for the noisy analog blocks powered from
AVDL4. These pins should be connected to a low impedance
off-chip GROUND plane.
AVDH1
CSU
Analog
Power
(3.3V)
AP29
The
quiet CSU analog power
(AVDH1) pin is a +3.3 V
power supply for the quiet analog blocks. This pin is de-
coupled to AVSH1 via an on-chip capacitor and is also de-
coupled externally to GROUND via the following structure: a
3 series resistor followed by a 10 F, a 1 F, and a 0.1 F
capacitor to the ground plane. The 0.1 F capacitor must be
a high-quality ceramic capacitor placed as close to the
AVDH1 ball as possible.
AVSH1
CSU
Analog
Ground
AJ31
AL34
AN30
The
quiet CSU analog ground
(AVSH1) pin is a ground
supply for the analog blocks powered from AVDH1. This pin
should be connected to off-chip GROUND.
AVDH2
TXLVREF
Analog
Power
(3.3V)
AN22
The
quiet TXLVREF analog power
(AVDH2) pin is a +3.3 V
power supply for the quiet analog blocks. This pin is de-
coupled to AVSH2 via an on-chip capacitor and is also de-
coupled externally to GROUND via the following structure: a
4.7 series resistor followed by a 1 F capacitor and a 0.1
F capacitor to the ground plane. The 0.1 F capacitor must
be a high-quality ceramic capacitor placed as close to the
AVDH2 ball as possible.
AVSH2
TXLVREF
Analog
Ground
AN28
The
quiet TXLVREF analog ground
(AVSH2) pin is a
ground supply for the analog blocks powered from AVDH2.
This pin should be connected to off-chip GROUND.