How to Order

Series GTL & ECL Products

NOTE: No dashes or spaces to appear in part number.

Example: 75324G101GTR

See page 33 for part marking information.

20

21

ECL Standard Resistance Values

R1

R2

Thev

Code

81

Ω

130

Ω

50

Ω

500A

120

Ω

200

Ω

75

Ω

750B

162

Ω

260

Ω

100

Ω

101B

220

Ω

270

Ω

121

Ω

121B

180

Ω

390

Ω

123

Ω

121A

220

Ω

330

Ω

130

Ω

131A

330

Ω

390

Ω

180

Ω

181A

330

Ω

470

Ω

190

Ω

191A

1

R = Terminator Resistance Value/2

23

4

RR

0.5nH

0.5nH

0.5nH

0.08pF

0.08pF

0.6nH

0.1pF

R

R

0.08pF

RR

0.2nH

0.2nH

0.6nH

0.2nH

0.1pF

0.1pF

12

3

4

Series 752

Series 753

Resistor Code

3 digit EIA

Tolerance

J = ±5%

G = ±2% (standard)

F = ±1% or .5

Ω

Termination

# Pads

High Speed Digital Termination Networks

• Low inductance leadless construction

• Excellent high frequency response

• Very low crosstalk

• 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

Resistance Tolerance:

Standard ±2% or 0.5

Ω (whichever is greater)

Special: ±1%

Temperature Coefficient (TCR):

Standard: ±200PPM/°C

Operating Temperature Range:

-55°C to +125°C

R18

R17 R16 R15

R14 R13 R12

R11 R10

24

13

R1

R2

R3

R4

R5

1

R6

R7

R8

R9

12

R1

1

R2

12

Spice Equivalent Circuit

GTL Termination

ECL Termination

GTL Standard Resistance Values

Value

Code

Value

Code

39

Ω

390

100

Ω

101

47

Ω

470

110

Ω

111

50

Ω

500

120

Ω

121

51

Ω

510

150

Ω

151

56

Ω

560

180

Ω

181

62

Ω

620

220

Ω

221

68

Ω

680

270

Ω

271

75

Ω

750

330

Ω

331

82

Ω

820

Standard Product Offering

Termination

CTS

Rated Package

Resistor

Term.

Term.

Type

Series#

Power @25°C

Power @25°C

Pitch

Lines

GTL (parallel)

753

0.82W

0.06W

0.025”

18

752

2.0W

0.08W

0.050”

ECL (Thevenin)

753

0.82W

0.06W

0.025”

8

752

2.0W

0.08W

0.050”

Apply

Spice

Measured

Spice

Measured

250mV

Result

Result

Result

Result

1nS

1nS

28pS

28pS

Apply P1

View P2

4.4mV

4.5mV

48mV

34mV

View P4

3.1mV

3.0mV

28mV

22mV

Apply P2

View P1

4.4mV

5.0mV

55mV

34mV

View P4

3.0mV

2.4mV

30mV

16mV

Apply P4

View P1

3.1mV

3.0mV

30mV

22mV

View P4

3.0mV

2.6mV

30mV

16mV

GTL & ECL T e r minator s-Ser ies 752 & 753

Testing based on TDR pulse using a Tektronix 11802 digitizing

scope. 28ps pulse applied, 1ns filter applied on 1ns measurement.

Terminator value tested = 50

Ω.

See pages 16-19 for physical dimensions, power rating and

other 752 & 753 information.

See page 19 for available value codes

See page 32 for available

value & CTS codes

753

24

G

101

G

TR

Packaging -

TR - Tape & Reel

B - Bulk

(see page 36)