V2.00 S 0258 M
3 turns
Features
Surface Mount
1:4 Impedance Ratio
CT on Secondary
Available on Tape & Reel
Description
M/A-COM's ETC4-1-2 is a 1:4 RF flux coupled 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 Flux Coupled Step-up Transformer
2.0 - 800 MHz
ETC4-1-2
Schematic
Note: Mean and Sigma calculated from average loss at @ 105 MHz.
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 @25C
Parameter
Units
Nominal
Maximum
Mean (x)
Sigma (
)
Frequency Range 2.0 - 800
MHz
--
--
--
--
Insertion Loss (f
L
- f
U
)
10 - 100 MHz
5.0 - 600 MHz
2.0 - 800 MHz
dB
dB
dB
--
--
--
1.0
2.0
3.0
--
1.21
--
--
0.032
--
Amplitude Unbalance
10 - 100 MHz
2.0 - 800 MHz
dB
dB
--
--
0.25
1.0
--
--
--
--
Phase Unbalance
10 - 500 MHz
2.0 - 800 MHz
Degrees
Degrees
--
--
2.0
10
--
--
--
--
Primary Dot 4
Primary 5
3 turns
3 Secondary Dot
3 turns
1 Secondary
2 Secondary CT
3 turns
V2.00 S 0258 M
Absolute Maximum Ratings
Parameter
Absolute Maximum
RF Power
250 mW
DC Current
30 mA
Operating Temperature
-40C to +85C
Storage Temperature
-40C to +85C
Functional Configuration
Function
Pin No.
Secondary
1
Secondary CT
2
Secondary Dot
3
Primary Dot
4
Primary
5
Insertion Loss
Typical Performance Over Extended Bandwidth (30kHz - 1.0GHz)
Phase Unbalance
Input Impedance
Amplitude Unbalance
Note: All measurements performed on Hewlett Packard 8753D Network Analyzer (201 sample points, linear scale) in a 50 ohm coplanar
waveguide environment. Tables created using MDS software.
ETC4-1-2
PDF 
ZIP