Features
1 of 2
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
Product Description
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
XFA-0301-4BH
1:4 SMT TRANSFORMER
The XFA-0301-4BH transformer is designed for applications that require small, low
cost, and highly reliable surface mount components. Applications may be found in
broadband, wireless, and other communications systems. These units are built Lead-
Free and RoHS Compliant. S-Parameters are available on request.
Frequency Range: 0.1MHz to
240 MHz
Impedance Ratio: 1:4 Balanced to
Balanced
Low Cost and RoHS Compliant
Industry Standard SMT package
Available in Tape-and -Reel
50Ω Nominal Impedance
EDS-XFA-0301-4BH Rev 4
RoHS Compliant and Pb-Free Product
Package: S06
XFA-0301-4BH
XFA-0301-4BH
Specifications
Parameter Specification Unit
Min. Typ. Max.
Frequency Range 0.1 240 MHz
Insertion Loss 0.3 180 <1dB
Insertion Loss 0.2 210 <2dB
Insertion Loss 0.1 240 <3dB
Impedance Ratio 1:4
Type Balanced to Balanced
I nput Ret ur n Loss
-40
-35
-30
-25
-20
-15
-10
-5
0
0 50 100 150 200 250 300
Fre quency (MHz)
dB
I nser tion Los s
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0 50 100 150 200 250 300
Fre quency (MHz)
dB
S21 S31
Schematic
2 of 2 EDS-XFA-0301-4BH Rev 4
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
XFA-0301-4BH
A m pl i tude Balance
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
0 50 100 150 200 250 300
Freque ncy (MHz)
dB
Phase Balance
175
176
177
178
179
180
181
182
183
184
185
0 50 100 150 200 250 300
Fre que ncy (MHz)
Deg
Insertion Loss,Directivity and Coupling
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
5 55 104 154 203 253 302 352 401 451 500
Frequency (M Hz)
dB
S21
S41
S31
Pin Out
Pin Name
1Primary DOT
2Primary CT
3Primary
4Secondary
5Secondary CT
6Secondary DOT
Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause
permanent damage to the device. Extended application of Absolute Maximum Rating condi-
tions to the device may reduce device reliability. Specified typical performance or functional
operation of the device under Absolute Maximum Rating conditions is not implied.
RoHS status based on EUDirective2002/95/EC (at time of this document revision).
The information in this publication is believed to be accurate and reliable. However, no
responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringe-
ment of patents, or other rights of third parties, resulting from its use. No license is granted
by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the
right to change component circuitry, recommended application circuitry and specifications
at any time without prior notice.
Absolute Maximum Ratings
Parameter Rating Unit
RF Power +33 dBm
Operating Temperature -55 to +100 °C
Storage Temperature -55 to +100 °C
Package Drawing