G T L & E C L T e r m i n a t o r s - S e r i e s 7 5 2 & 7 5 3
See pages 16-19 for physical dimensions, power rating and
other 752 & 753 information.
Spice Equivalent Circuit
GTL Termination
24
13
1
2
3
4
R18
R17 R16 R15
R3 R4 R5
R14 R13 R12
R6 R7 R8
R11 R10
R9
High Speed Digital Termination Networks
• Low inductance leadless construction
• Excellent high frequency response
• Very low crosstalk
R = Terminator Resistance Value/2
0.5nH
R1 R2
0.5nH
0.5nH
• High power dissipation versus board space
• Spice models available for circuit simulation
• Solder-coated nickel barrier pads
• Tape & reel packaging per EIA 481
• Designed to work with standard automated
surface mount pick & place solder processes
R
R
R
0.6nH
R
0.08pF
0.08pF
1
12
0.08pF
0.1pF
0.1pF
0.1pF
R
ECL Termination
R
Resistance Tolerance:
Standard 2ꢀ or 0.5Ω (whichever is greater)
Special: 1ꢀ
R1
0.2nH
0.2nH
0.6nH
0.2nH
Temperature Coefficient (TCR):
Standard: 200PPM/ꢁC
1
12
1
2
3
4
Apply
250mV
Spice Measured Spice Measured
Operating Temperature Range:
-55ꢁC to +125ꢁC
Result
1nS
Result
1nS
Result
28pS
Result
28pS
R2
Apply P1
View P2
View P4
4.4mV
3.1mV
4.5mV
3.0mV
48mV
28mV
34mV
22mV
Testing based on TDR pulse using a Tektronix 11802 digitizing
scope. 28ps pulse applied, 1ns filter applied on 1ns measurement.
Terminator value tested = 50Ω.
Apply P2
View P1
View P4
4.4mV
3.0mV
5.0mV
2.4mV
55mV
30mV
34mV
16mV
GTL Standard Resistance Values
ECL Standard Resistance Values
Value
Code
Value
Code
R1
R2
Thev
Code
Apply P4
View P1
View P4
39Ω
47Ω
50Ω
51Ω
56Ω
62Ω
68Ω
75Ω
82Ω
390
470
500
510
560
620
680
750
820
100Ω
110Ω
120Ω
150Ω
180Ω
220Ω
270Ω
330Ω
101
111
121
151
181
221
271
331
81Ω
120Ω 200Ω
130Ω
50Ω
75Ω
500A
750B
101B
121B
121A
131A
181A
191A
3.1mV
3.0mV
3.0mV
2.6mV
30mV
30mV
22mV
16mV
162Ω 260Ω 100Ω
220Ω 270Ω 121Ω
180Ω 390Ω 123Ω
220Ω 330Ω 130Ω
330Ω 390Ω 180Ω
330Ω 470Ω 190Ω
753
24
G
101
G
TR
How to Order
Series GTL & ECL Products
Series 752
Series 753
Resistor Code
3 digit EIA
# Pads
24 (GTL)
12 (ECL)
See page 32 for available
value & CTS codes
Packaging -
See page 19 for available value codes
TR - Tape & Reel
B - Bulk
Standard Product Offering
(see page 36)
Termination
Type
CTS
Rated Package
Power @25°C
Resistor
Term.
Pitch
Term.
Lines
Series#
Power @25°C
Termination
G=GTL
753
752
0.82W
2.0W
0.06W
0.08W
0.025”
0.050”
18
Tolerance
J = 5ꢀ
G = 2ꢀ (standard)
F = 1ꢀ or .5Ω
GTL (parallel)
ECL (Thevenin)
E=ECL
753
752
0.82W
2.0W
0.06W
0.08W
0.025”
0.050”
8
NOTE: No dashes or spaces to appear in part number.
Example: 75324G101GTR
See page 33 for part marking information.
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CTS Resistor/Electrocomponents 406 Parr Road Berne, IN 46711 fax: (219) 589-3243 www.ctscorp.com 75XB
CTS Resistor/Electrocomponents 406 Parr Road Berne, IN 46711 fax: (219) 589-3243 www.ctscorp.com 75XB
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