
XRT83VSH38
16
REV. 1.0.7
8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
TVDD
E4
F4
F16
E17
R4
P1
N15
P15
****
Transmit Analog Power Supply (3.3V ±5%)
TVDD can be shared with DVDD. However, it is recommended that TVDD be
isolated from the analog power supply RVDD. For best results, use an internal
power plane for isolation. If an internal power plane is not available, a ferrite
bead can be used. Each power supply pin should be bypassed to ground
through an external 0.1
μ
F capacitor.
RVDD
C2
E5
G16
D16
V2
N3
N17
U18
****
Receive Analog Power Supply (3.3V ±5%)
RVDD should not be shared with other power supplies. It is recommended that
RVDD be isolated from the digital power supply DVDD and the analog power
supply TVDD. For best results, use an internal power plane for isolation. If an
internal power plane is not available, a ferrite bead can be used. Each power
supply pin should be bypassed to ground through an external 0.1
μ
F capacitor.
RGND
D2
G3
G17
D17
T2
M2
M17
R17
****
Receiver Analog Ground
It’s recommended that all ground pins of this device be tied together.
AVDD-Bias
K17
J3
J2
****
Analog Power Supply (1.8V ±5%)
AVDD should be isolated from the digital power supplies. For best results, use
an internal power plane for isolation. If an internal power plane is not available,
a ferrite bead can be used. Each power supply pin should be bypassed to
ground through at least one 0.1
μ
F capacitor.
AGND
J17
K3
L4
****
Analog Ground
It’s recommended that all ground pins of this device be tied together.
DVDD3v3
A18
R9
D9
K15
J4
****
Digital Power Supply (3.3V ±5%)
DVDD should be isolated from the analog power supplies. For best results, use
an internal power plane for isolation. If an internal power plane is not available,
a ferrite bead can be used. Every two DVDD power supply pins should be
bypassed to ground through at least one 0.1
μ
F capacitor.
DVDD1v8
V1
U10
K18
D10
A9
****
Digital Power Supply (1.8V ±5%)
DVDD should be isolated from the analog power supplies. For best results, use
an internal power plane for isolation. If an internal power plane is not available,
a ferrite bead can be used. Every two DVDD power supply pins should be
bypassed to ground through at least one 0.1
μ
F capacitor.
N
OTE
:
For proper operation, the power-up sequence is: bring up 1.8V power
befor the 3.3V.
S
IGNAL
N
AME
BGA
L
EAD
#
T
YPE
D
ESCRIPTION