E-Series RF 1:4 Transformer — 6.0 - 1000 MHz ETC4-1T-7
V2.00 S 0804 G
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588
Visit www.macomtech.com for additional data sheets and product
information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Features
• Surface Mount
• 1:4 Impedance Ratio
• CT on Secondary
• Available on Tape & Reel
Description
M/A-COM’s ETC4-1T-7 is a 1:4 RF transmission line step-up
transformer in a low cost, surface mount package. Ideally suited
for high volume cellular and wireless applications. Typical
applications include single to balanced mode conversion and
impedance matching.
SM-22 Package
E-Series RF 1:4 Transmission Line Step-up
Transformer
ETC4-1T-7
Schematic
Note: Mean and Sigma calculated from average loss at @ (f
U
- f
L
)/2 + f
L
Please Note that the photograph above indicates typical package only, not actual unit.
(3.30)
(2.54)
0.100 (0.762)
(1.397)
0.055
(4.83)
0.190
0.130
0.030
(3.81 MAX)
0.150 MAX
(0.762)
0.030
0.030
(0.762)
0.030
(0.762)
(1.27)
0.050
(3.81)
0.150
(3.81)
0.150
(1.65)
0.065
Electrical Specifications @25°C
Parameter Units Nominal Maximum Mean (x) Sigma (σ)
Frequency Range 6.0 - 1000 MHz — — — —
Insertion Loss (f
L
- f
U
)
6.0 - 600 MHz
600 - 1000 MHz
dB
dB
—
—
2.0
3.0
1.06
—
0.027
—
Amplitude Unbalance
6.0 - 1000 MHz
dB
—
1.0
—
—
Phase Unbalance
6.0 - 1000 MHz
Degrees
—
10
—
—
Primary Dot 5
Primary 4
1 Secondary Dot
2 Secondary CT
3 Secondary
E-Series RF 1:4 Transformer — 6.0 - 1000 MHz ETC4-1T-7
V2.00 S 0804 G
• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400
• India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588
Visit www.macomtech.com for additional data sheets and product
information.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Absolute Maximum Ratings
Parameter Absolute Maximum
RF Power 250 mW
DC Current 30 mA
Operating Temperature -20°C to +85°C
Storage Temperature -20°C to +85°C
Functional Configuration
Function Pin No.
Secondary Dot 1
Secondary CT 2
Secondary 3
Primary 4
Primary Dot 5
Insertion Loss
Typical Performance Over Extended Bandwidth (30kHz - 3.0GHz)
Phase Unbalance
Input Impedance Amplitude Unbalance
Note: All measurements performed on Hewlett Packard 8753D Network Analyser (201 sample points, linear scale) in a 50 ohm coplanar
waveguide environment. Tables created using MDS software.
-4.00
-3.50
-3.00
-2.50
-2.00
-1.50
-1.00
-0.50
0.00
6.00 106.00 206.00 306.00 406.00 506.00 606.00 706.00 806.00 906.00
MHz
d B m
