1 - 3 © 2005 CTS Corporation. All rights reserved. Information subject to change. 4/22/05
CTS Electronic Components, 171 Covington Dr., Bloomingdale IL, 60108 Tel: 630-924-3500 Fax: 630-295-6601 www.ctscorp.com
GTL, GTL+, AGTL+ Terminator
Technical Data
Features
• 8 Bit, 16 Bit, and 32 Bit Termination Sets
• Compliant for GTL, GTL+, and AGTL+
Termination
• Excellent High Frequency Performan ce
• Slim BGA Package
• 1% Resistor Toler a nce
• Low Channel to Channel Cross Talk
Custom resistor value s and tolerances available upon request.
Typical Application
Vtt
Vtt
Vtt
GTL+ Backplane
Vtt
RT1451B6Card Card CardCardRT1451B6
Ordering Information
Part
Number R
Ohms Bits Pitch
(mm)
RT1450B6 25 8 1.27
RT1451B6 25 16 1.27
RT1452B6 25 32 1.27
RT1453B6 56 8 1.27
RT1454B6 56 16 1.27
RT1427B6 56 32 1.27
RT1410B6 150 8 1.27
RT1411B6 150 16 1.27
RT1412B6 150 32 1.27
RT1412B7 150 32 1.00
Description
These integrated termination netwo rks
provide high performan ce line termination for
GTL, GTL+, and AGTL+ busses.
The patented star circuit desig n combined
with a ceramic substrate virtually eliminates
cross talk betwee n channels that is common
in other termination networks and resistor
arrays.
The BGA packaging has been proven to
reduce rework and im
p
rove reliabilit
y
.
8 Bi t Style D
ABC
1
2
3
16 Bi t S tyle D
DEFABC
1
2
3
32 Bit Sty le D
DEF
ABC KLMGHJ
1
2
3
2 - 3 © 2005 CTS Corporation. All rights reserved. Information subject to change. 4/22/05
CTS Electronic Components, 171 Covington Dr., Bloomingdale IL, 60108 Tel: 630-924-3500 Fax: 630-295-6601 www.ctscorp.com
Mechanical Diagram
Recommended Land Pattern
1.00mm Pitch (B7) = 0.51mm/.020 inch (minimum)
1
.27mm pitch (B6) = 0.64mm/.025 inch (minimum)
Outline of Substrate
PCB Pa d Diamete r
or .006" Thick Solder Paste Stencil, Ap erture Opening Should
be Equal to the PCB Pad Diameter.
Refer to www.ctscorp.com/resistor
F
for Land Pattern Library
KP (Pitch)
LH
W
P (Pitch)
A1 Id en ti fi e r
RT14_ _B_
CTS YRWK
D
1.27mm Pitch L W H P D K Coplanarity
mm 3.81±0.15 3.81±0.15 1.32±0.15 1.27±0.25 0.76±0.05 0.64±0.25 0.15
3 x 3 Array
(8 Bit) inch .150±.006 .150±.006 .052±.006 .050±.010 .030±.002 .025±.010 .006
mm 7.62±0.15 3.81±0.15 1.32±0.15 1.27±0.25 0.76±0.05 0.64±0.25 0.15
3 x 6 Array
(16 Bit) inch .300±.006 .150±.006 .052±.006 .050±.010 .030±.002 .025±.010 .006
mm 15.24±0.15 3.81±0.15 1.32±0.15 1.27±0.25 0.76±0.05 0.64±0.25 0.15
3 x 12 Arr ay
(32 Bit) inch .600±.006 .150±.006 .052±.006 .050±.010 .030±.002 .025±.010 .006
1.00mm Pitch L W H P D K Coplanarity
mm 12.00±0.15 3.00±0.15 1.19±0.15 1.00±0.25 0.64±0.05 0.50±0.25 0.15
3 x 12 Arr ay
(32 Bit) inch .472±.006 .118±.006 .047±.006 .039±.010 .025±.002 .020±.010 .006
0
10
20
30
40
50
60
70
80
90
100
200
400
600
800
1
000
1
200
1
400
1
600
1
800
2
000
F requency R esponse for 50 ohm Netw ork
Fr eque ncy Per formance (5 0 ohm Netw ork)
Cross Talk Performance (50 oh m Net wor k)
AC
B
H
1nS
250mV
Aggressor D
E
F
I
Aggressor on
Lead A
250mV 1nS
Ri se T im e
Measured
Voltage
(Pe ak to Peak)
Victim B 3.3 mV
Vic tim C 1.9 mV
Vic tim D 1.5 mV
Victim E 1.5 mV
Vic tim F 1.5 mV
Vic tim H 2.1 mV
Victim I 3.3 mV
Aggressor on
Lead B
250mV 1nS
Ri se Time
Measured
Voltage
(Peak to Pe a k)
Victim A 3.2 mV
Victim C 2.7 mV
Victim D 1.8 mV
Victim E 1.4 mV
Victim F 1.5 mV
Victim H 1.5 mV
Victim I 2.0 mV
Solder Mask Dia = Pad
Diameter +.15mm
(.006 inch)
3 - 3 © 2005 CTS Corporation. All rights reserved. Information subject to change. 4/22/05
CTS Electronic Components, 171 Covington Dr., Bloomingdale IL, 60108 Tel: 630-924-3500 Fax: 630-295-6601 www.ctscorp.com
Ro u ti ng Exam ples
16 Bit , 3 x 6 Array
(10X)
Signal
Lines
8 Bit , 3 x 3 Array
(10X)
Signal
Lines
Blind via to Vtt
reference plane layer.
Open vi a’ s on t op of
l and pa ds are not
recommended due to
solde r wicking.
1. 27 m m pitc h land
patt erns are shown.
32 Bit , 3 x 12 Array
(5X)
5 mil l i ne widths shown.
Electrical Specifications
Resistor Tolerance: ± 1.0%
TCR ± 200ppm/°C
Operating Temperature Range -55°C to +125°C
Maximum Resistor Power: 0.05 Watts minimum at
70°C
Maximum Package Power: 1.0 Watts at 70°C
Packaging Information
Suffix TR7 TR13
Tape Width 24 mm 24mm
Carrier Pitch 8 mm 8 mm
Reel Diameter 7 inch 13 inch
Parts/Reel 1,000 4,000
Pa rt Number Coding
7 inch reel, A dd TR7 to part
number, example RT1415B7TR7
13 inch reel, A dd TR13 to part
number, example RT1415B7TR13
(Bulk packaging is not available)
Direction of Feed
