© 2006 CTS Corporation. All rights reserved. Information subject to change.

CTS Electronic Components

Page 1

March 06

www.ctscorp.com

LVPECL Terminators

LVPECL Terminators

Technical

Data Sheet

RoHS Compliant Parts Available

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

Part Number Coding

7 inch reel, Add TR7 to part

number, example RT2250B7TR7

13 inch reel, Add TR13 to part

number, example RT2250B7TR13

(Bulk packaging is not available)

Direction of Feed

Typical Application

LVPECL

RECEVERS

LVPECL

DRIVERS

CTS

RT2250

V

CC

V

EE

R1

R2

Features

•

8 Bit Thevinin Termination Set

•

Compliant for LVPECL Termination

•

Excellent High Frequency Performance

•

Slim BGA Package

•

1% Resistor Tolerance

•

Low Channel to Channel Cross Talk

•

RoHS Compliant Designs Available

•

Compatible with both lead and lead-

free processes

Ordering Information

Standard

Part No.

R1

Ω

R2

Ω

Bits

Pitch (mm)

RoHS

Part No.

127

82.5

8

1.27

RT1250B7

127

82.5

8

1.00

RT2250B7

*Indicates available Top Probe-able part numbers.

Refer to the following link for detailed Top Side Probe-able information:

www.ctscorp.com/components/clearone/TopProveClearOne.pdf

Description

These integrated termination networks provide high

performance line termination for LVPECL busses.

Specifically designed shielding inside the package 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.

R1

R2

Style G

DE

F

AB

C

G

H

1

2

3

R1

R2

Zo

Zo = 50 Ohms

Thevenin Vtt = 1.3Volts

R1 = 127 Ohms

V

EE

= 0 Volts

R2 = 82.5 Ohms

LVPECL Thevenin Termination

Electrical Specifications

Resistor Tolerance:

± 1.0%

TCR

± 200 ppm/°C

Operating Temperature Range

-55

°C to +125°C

B6-1.27mm Pitch

B7-1.00mm Pitch

Maximum Resistor Power:

R1

R2

96mw

96mw

60mW

66mW

Maximum Package Power:

1.0 Watt at 70

°C

Process Requirements:

Maximum Re-flow Temperature

Per IPC/JEDEC J-STD-020C