RF Balun Transformers
For Wideband RF Applications
Low cost construction
Miniature surface mount package
Excellent insertion loss
Ideal for balanced-to-unbalanced applications
Designed for: • CATV Distribution/Drop Amplifiers
• Set Top Boxes
• Residential Gateways
Electrical Specifications @ 25°C - Operating Temperature -40°C to +85°C
Standard
Part
Number
CX2024
CX2024A
RoHS-6
Compliant
Part No.
CX2024NL
CX2024ANL
Impedance
Ratio
1
(Pri:Sec
±2%)
1:1
1:1
Insertion Loss
10MHz
(TYP/MAX)
0.46/1.00dB
0.46/1.00dB
50MHz
(TYP/MAX)
CX2149
CX2149NL
1:1
0.40/1.00B
2
Return Loss
10MHz
(TYP/MIN)
>40/20dB
>40/20dB
50MHz
(TYP/MAX)
>30/20dB
50-750MHz 750-1000MHz
(TYP/MAX)
(TYP/MAX)
0.37/0.50dB
0.37/0.50dB
208MHz
(TYP/MAX)
0.40/1.00B
0.48/0.60B
0.48/0.60B
870MHz
(TYP/MAX)
0.6/1.0B
Phase
50-750MHz 750-1000MHz Unbalance
(TYP/MIN)
(TYP/MIN) (50/1000MHz)
>30/20dB
>30/20dB
208MHz
(TYP/MAX)
30/20dB
30/16dB
30/16dB
870MHz
(TYP/MAX)
22/18dB
20½ MAX
20½ MAX
50-870MHz
Amplitude
Unbalance
(50MHz)
1.4dB MAX
1.4dB MAX
50MHz
(100-1000MHz)
1.25dB MAX
1.25dB MAX
100-870MHz
1.3dB MAX
±4½
from 180½ 1.4dB MAX
Notes:
1. Part with cover plate is designated CX2024A. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part numbe (ex: CX2024T or CX2024AT).
Mechanical
CX2024/NL, CX2024A/NL & CX2149/NL
Schematic
1
Tape & Reel
............................................2000/reel
Tray
...........................................................100/tray
Power Rating
................30 mA MAX; 0.25 W MAX
Inches
Dimensions:
mm
Unless otherwise specified, all tolerances are
±
.010
0,25
USA 858 674 8100
1
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai 86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
C217.C (05/12)
pulseelectronics.com
RF Balun Transformers
For Wideband RF Applications
Application Notes
A. Bandwidth specifications for
CX2024, CX2024A
and
CX2149
are for a 75
Ω
system.
B. Materials used in the products are UL94-V0 recognized.
Products meet requirements of IEC 695-2-2 (Needle
Flame Test).
C. For additional impedance ratios and frequency ranges,
please contact Applications Engineering.
D. Pick and place operation: smooth upper surface of
device allows automatic pick and place.
Notes from Tables
1. Impedance and turns ratios are specified primary
:secondary.
2. These transformers are verified to operate from -40½C
to +85½C. Contact Applications Engineering for
performance data.
For More Information
Pulse China Headquarters
Pulse North China
Pulse South Asia
Pulse North Asia
B402, Shenzhen Academy of
Room 2704/2705
135 Joo Seng Road
3F, No. 198
Aerospace Technol-
Super Ocean Finance
#03-02
Zhongyuan Road
ogy Bldg.
Ctr.
PM Industrial Bldg.
Zhongli City
10th Kejinan Road
2067 Yan An Road
Singapore 368363
Taoyuan County 320
High-Tech Zone
West
Taiwan R. O. C.
Nanshan District
Shanghai 200336
Tel: 886 3 4356768
Shenzen, PR China
China
Tel: 65 6287 8998
Fax: 886 3 4356823 (Pulse)
Tel: 858 674 8100
Tel: 49 7032 78060
518057
Fax: 65 6287 8998
Fax: 886 3 4356820 (FRE)
Fax: 858 674 8262
Fax: 49 7032 7806 135
Tel: 86 755 33966678
Tel: 86 21 62787060
Fax: 86 755 33966700
Fax: 86 2162786973
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be
trademarks or registered trademarks of their respective owners. © Copyright, 2012. Pulse Electronics, Inc. All rights reserved.
Pulse Worldwide
Headquarters
12220 World Trade Drive
San Diego, CA
92128
U.S.A.
Pulse Europe
Einsteinstrasse 1
D-71083 Herren-
berg
Germany
2
pulseelectronics.com
C217.C (05/12)