CLINK3V48BT-112 National Semiconductor, CLINK3V48BT-112 Datasheet - Page 13

• Manufacturer Part Number: CLINK3V48BT-112
• Description: KIT EVAL 48BIT DS90CR481/2/3/4
• Manufacturer: National Semiconductor

Specifications of CLINK3V48BT-112

• Main Purpose: Interface, Serializer, Deserializer (SERDES)
• Utilized Ic / Part: DS90CR481, DS90CR482, and DS90CR483
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

Tx Optional: Parallel Termination for TxIN
On the Tx demo board, there are 50 inputs that have an 0402 pad on one side and the
other side tied to ground. These pads are unpopulated from the factory but are
provided if the user needs to adjust the input termination to match the impedance of the
input signal. PAD1 TO PAD48 are associated with the Tx data input lines. PAD49 is
associated with CLKIN.
Mapping for Transmitter Inputs for the Optional Parallel Termination Resistors:
Tx Pin
Names
TxIN0
TxIN1
TxIN2
TxIN3
TxIN4
TxIN5
TxIN6
TxIN7
TxIN8
TxIN9
TxIN10
TxIN11
TxIN12
TxIN13
TxIN14
TxIN15
TxIN16
TxIN17
TxIN18
TxIN19
TxIN20
TxIN21
TxIN22
TxIN23
TxIN24
Tx Pin
Number
10
9
8
7
6
5
4
3
2
1
100
99
96
95
94
93
92
91
90
89
88
87
86
85
84
Parallel
Termination
Resistor
PAD48
PAD47
PAD46
PAD45
PAD44
PAD43
PAD42
PAD41
PAD40
PAD39
PAD38
PAD37
PAD36
PAD35
PAD34
PAD33
PAD32
PAD31
PAD30
PAD29
PAD28
PAD27
PAD26
PAD25
PAD24
National Semiconductor Corporation
Interface Products
Tx Pin
Names
TxIN25
TxIN26
TxIN27
TxIN28
TxIN29
TxIN30
TxIN31
TxIN32
TxIN33
TxIN34
TxIN35
TxIN36
TxIN37
TxIN38
TxIN39
TxIN40
TxIN41
TxIN42
TxIN43
TxIN44
TxIN45
TxIN46
TxIN47
CLKIN
Tx Pin
Number
81
80
79
78
77
76
75
74
73
72
71
70
69
66
65
64
63
62
61
60
59
58
57
11
LIT# CLINK3V48BT-112-UM
Date 07/15/08
Page 13 of 28
Parallel
Termination
Resistor
PAD23
PAD22
PAD21
PAD20
PAD19
PAD18
PAD17
PAD16
PAD15
PAD14
PAD13
PAD12
PAD11
PAD10
PAD9
PAD8
PAD7
PAD6
PAD5
PAD4
PAD3
PAD2
PAD1
PAD49