Part Number ROhms Bits Pitch(mm)
RT1450B6 25 81.27
RT1451B6 25 16 1.27
RT1452B6 25 32 1.27
RT1453B6 56 81.27
RT1454B6 56 16 1.27
RT1427B6 56 32 1.27
RT1410B6 150 81.27
RT1411B6 150 16 1.27
RT1412B6 150 32 1.27
RT1412B7 150 32 1.00
GTL, GTL+, AGTL+ Terminators
Technical Data
• Compliant for GTL, GTL+, and AGTL+ Termination
•SlimBGAPackage
Description
• 1% Resistor Tolerance
• Low Channel to Channel Cross Talk
Features
• Excellent High Frequency Performance
• 8 Bit, 16 Bit, and 32 BitTermination Sets
These integrated termination networks provide high
performance line termination for GTL, GTL+, and
AGTL+ busses.
The patented star circuit design combined with a
ceramic substrate virtually eliminates cross talk
between channels that is common in other
termination networks and resistor arrays.
The BGA packaging has been proven to reduce
rework and improve reliability.
© CTS Resistor Electrocomponents, 406 Parr Road, Berne Indiana, 46711 Tel: (219) 589-3111 Fax: (219) 589-3243 www.ctsclearone.com
Custom resistor values and tolerances available upon request.
6/26/01
Ordering Information
Typical Application
1-3
32 Bit8Bit 16Bit
Vtt
Vtt
Vtt
GTL+ Backplane
Vtt
RT1451B6Card Card CardCardRT1451B6
ABC
1
2
3
DEFABC
1
2
3
DEFABC KLMGHJ
1
2
3
(Tape and reel packaging information is shown on page 3)
Aggresso r o n
Lead A
250mV 1nS
Rise Time
Mea sur ed
Voltage
(Peak to Peak)
Vic tim B 3.3 mV
Victim C 1.9 mV
Victim D 1.5 mV
Victim E 1.5 mV
Victim F 1.5 mV
Victim H 2.1 mV
Victim I 3.3 mV
Ag gressor o n
Lead B
250mV 1nS
Rise Time
Measured
Voltage
(Peak to Peak)
Victim A 3.2 mV
Victim C 2.7 mV
Victim D 1.8 mV
Vic tim E 1.4 mV
Victim F 1.5 mV
Victim H 1.5 mV
Victim I 2.0 mV
0
10
20
30
40
50
60
70
80
90
100
200
400
600
800
1000
1200
1400
1600
1800
2000
1.27 mm Pitch L W H P D K Co-
planarity
3x3Array
(8 bit)
mm
inch
3.81±0.15
.150±.006
3.81±0.15
.150±.006
1.32±0.15
.052±.006
1.27±0.25
.050±.010
0.76±0.05
.030±.002
0.64±0.25
.025±.010
0.15
.00 6
3x6Array
(16 b it)
mm
inch
7.62±0.15
.300±.006
3.81±0.15
.150±.006
1.32±0.15
.052±.006
1.27±0.25
.050±.010
0.76±0.05
.030±.002
0.64±0.25
.025±.010
0.15
.00 6
3x12Array
(32 b it)
mm
inch
15.24±0.15
.600±.006
3.81±0.15
.150±.006
1.32±0.15
.052±.006
1.27±0.25
.050±.010
0.76±0.05
.030±.002
0.64±0.25
.025±.010
0.15
.00 6
1.00 mm Pitch L W H P D K Co-
planarity
3x12Array
(32 bit)
mm
inch
12.00±0.15
.472±.006
3.00±0.15
.1 18±. 006
1.19±0.15
.047±.006
1.00±0.25
.039±.010
0.64±0.05
.025±.002
0.50±0.25
.020±.010
0.15
.006
KP(Pitch)
L
W
H
P(Pitch)
A1 Identifier
RT14_ _B_
CTS YRWK
D
Cross Talk Performance (50 ohm Network)
CTS Resistor Electrocomponents, 406 Parr Road, Berne Indiana, 46711 Tel: (219) 589-3111 Fax: (219) 589-3243 www.ctsclearone.com
6/26/01
2-3
Electrical Specifications
Resistor Tolerance:
±1.0%
Operating Temperature Range:
-55°C to +125°C
MaximumResistorPower:
0.05 Watts at 70°C
(Not to Exceed Maximum Package Power)
Maximum Package Power (70°C):
8Bit =0.3Watts
16 Bit = 0.6 Watts
32 Bit = 1.2 Watts
Temperature Coefficient of Resistance:
±200 ppm/°C
AC
B
H
1nS
250mV
Aggressor
D
E
F
I
Mechanical Diagram
Frequency Performance (50 ohm Network)
TR13 Suffix
Tape Width 24 mm
Carrier Pitch 8mm
Reel Diameter 13 inch
Parts/Reel 4,000
TR7 Suffix
Tape Width 24 mm
Tape Pitch 8mm
Reel Diameter 7inch
Parts/Reel 1,000
Routing Examples
© CTS Resistor Electrocomponents, 406 Parr Road, Berne Indiana, 46711 Tel: (219) 589-3111 Fax: (219) 589-3243 www.ctsclearone.com
6/26/01
3-3
16 Bit , 3 x 6 Array
(10X)
Signal
Lines
8Bit,3x3Array
(10X)
Signal
Lines
Blind via to Vtt
reference plane layer.
Open via’s on top of
land pads are not
recommended due to
solder wicking.
1.27 mm pitch land
patterns are shown.
32 Bit , 3 x 12 Array
(5X)
5 mil line widths shown.
Tape and Reel Packaging
1.00 mm Pitch (B7) = 0.51mm/.020 inch
1.27 mm Pitch (B6) = 0.64mm/.025 inch
Outline of Substrate
PCB Pad Diameter
For .006" Thick Solder Paste Stencil, Aperture
Opening Should be Equal to the PCB Pad
Diameter.
Refer to www.ctscorp.com/resistor
for Land Pattern Library
Solder Mask Dia. =
Pad Diameter + .15 mm
(.006 inch)
Recommended Land Pattern
Direction of Feed
Part Number Coding
7 inch reel, Add TR7 to part number, example RT1450B6TR7
13 inch reel, Add TR13 to part number, example RT1450B6TR13
(bulk packaging is not available)
All specifications are subject to change without notification.
