E-Series RF 1:4 Flux Coupled Step-up Transformer
1 – 350 MHz ETC4-1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
V4
1
Features
• 1:4 Impedance Ratio
• CT on Secondary
• Surface Mount
• Tape and reel packagi ng available
Description
M/A-COM’s ETC4-1 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. Parts are packaged in tape & reel.
Ordering Information
Part Number Package
ETC4-1TR Tape and Reel (2000 piece Reel)
SM - 22 Package
Electrical Specifications: TA = 25°C, Z0 = 50 Ω 1
Parameter Test Conditions Frequency Units Min Typ Max
RF Frequency — 1 - 350 MHz — — —
Insertion Loss FL—fU 5 - 100
2 - 300
1 - 350
dB
dB
dB
—
—
—
—
1.21
—
1.0
2.0
3.0
Amplitude Unbalance — 5 - 100
1 - 350 dB
dB —
— —
— 0.1
0.5
Phase Unbalance — 5 - 100
1 - 350 Degrees
Degrees —
— —
— 1.0
5.0
Absolute Maximum Ratings 1
1. Operation of this device above any one of these parameters
may cause permanent damage.
Parameter Absolute Maximum
RF Power 250 mW
DC Current 30 mA
Operating Temperature -40°C to +85°C
Storage Temperature -55°C to +125°C
E-Series RF 1:4 Flux Coupled Step-up Transformer
1 – 350 MHz ETC4-1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
V4
2
Pin Configuration
Pin No. Function
1 Secondary
2 Secondary CT
3 Secondary Dot
4 Primary Dot
5 Primary
Schematic
Phase Unbalance
Amplitude Unbalance
Typical Performance Curves
Insertion Loss
Primary 5
Primary Dot 4
4 turns
3 Secondary Dot
4 turns
1 Secondary
2 Secondary CT
4 turns
-1.60
-1.28
-0.96
-0.64
-0.32
0.00
1 71 141 210 280 350
Freq (MHz )
dB
170
176
182
188
194
200
1 71 141 210 280 350
Freq (MHz)
Degrees
-0.04
0.01
0.06
0.11
0.16
0.21
1 71 141 210 280 350
Freq (MHz)
dB
