High Frequency Ceramic Solutions
Impedance Matched Balun + Harmonic Filter compatible with: Realtek RTL8188EU and
RTL8192EU and ST BlueNRG chipsets
Detail Specification: 2/27/2015
P/N 2450BM14A0023
Page 1 of 5
General Specifications
Part Number
Frequency (MHz)
Unbalanced Impedance
Balanced Differential Impedance
Insertion Loss (dB)
Return Loss (dB)
Phase Difference (degree)
Amplitude Difference
Attenuation (dB)
Qty/Reel (pcs)
Power Capacity
2450BM14A0023
2400 - 2500
50
Ω
Conjugate match compatible to
RTL8188EU, RTL8192EU and ST
BlueNRG chipsets
1.2 max.
9.5 min.
Operating Temperature Range
180° ± 10
Storage Temperature Range
2.0 max.
30 min.@4800~5000MHz
Recommended Storage Conditions
for Unused product on T&R
4,000
Storage Period
2W max (CW)
-40 ~ +85°C
-40 ~ +85°C
+5 ~ +35 °C, Humidity
45~75%RH, 18 months.
18 months max.
You can download measured s-parameters of this component at: www.johansontechnology.com/chipset-ipc
Part Number Explanation
P/N Suffix
Packaging Style
Termination Style
Bulk
T&R
100% Tin
Suffix = S
Suffix = T
Suffix = None
E.g.. 2450BM14A0023S
E.g.. 2450BM14A0023T
E.g.. 2450BM14A0023(T or S)
Mechanical Dimensions
Inches
L
W
T
a
c
g
p
0.063 ± 0.004
0.031 ± 0.004
0.024 ± 0.004
0.008 ± 0.004
0.006 ± 0.004
0.012 ± 0.004
0.020 ± 0.002
Millimeter
1.60 ± 0.10
0.80 ± 0.10
0.60 ± 0.10
0.20 ± 0.10
0.2+0.1/-0.15
0.15 ± 0.10
0.30 ± 0.10
0.50 ± 0.05
g
T
b
a
L
p
W
Terminal Configuration
No
1
2
3
Function
GND
GND
Balanced Port
No
4
6
Function
Balanced Port
Unbalanced Port
5
DC feed + RF GND
c
b
0.008+0.004/-0.006
Note: Use a 10pF capacitor in shunt when using
DC-Feed
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 1.0
2015 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
Impedance Matched Balun + Harmonic Filter compatible with: Realtek RTL8188EU and
RTL8192EU and ST BlueNRG chipsets
Detail Specification: 2/27/2015
P/N 2450BM14A0023
Page 2 of 5
Mounting Considerations for Balun-Filter solder pads
0.2
5
0.5
0.25
*
Line width should be designed to match 50Ω
characteristic impedance, depending on PCB materia
and thickness.
Solder Resist
0.45
Land
Through-hole (
0.3/0.2)
0.5
*
Recommended PCB Layout
10pF capacitor
Do you need the layout/gerber files of the above? Go to: www.johansontechnology.com/nordic or send us a message a
http://www.johansontechnology.com/component/techquestion/?Itemid=407
Ground via as close as possible to ground pad and
underneath component to improve harmonic attenuation
PCB material：FR4
L = as short as possible. These t
Wd
differential lines can be of
RTL8192EU
different shape from above as
ST BlueNRG
Wd
Ws long as both lines are symmetrical
and equal length
Chipset
Wd = recommended 7‐8mil.
Ws = must be designed as a
50Ohm Grounded CPW or
transmission line, depending on
DC voltage in for DC Bias Option
PCB material and thickness.
10pF capacitor closets to
DC‐feed pin if possible
RTL8188EU
L
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 1.0
2015 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
Impedance Matched Balun + Harmonic Filter compatible with: Realtek RTL8188EU and
RTL8192EU and ST BlueNRG chipsets
Detail Specification: 2/27/2015
P/N 2450BM14A0023
Page 3 of 5
Component Characterization Diagram
Port 3*
Network
Analyzer**
Port 2*
GND GN
D
Port 1(50
)
Port 1: Unbalanced Port
Ports 2 and 3: Balanced Port
IL=S
ds21
RL=S
ss11
and S
dd22
Amp_balance = dB(S(2,1)/S(3,1))
Phase_balance = Phase(S(2,1)/S(3,1))
*Impedance for ports 2 and 3
= Conjugate to Balanced Impedance/2
**E5071B from Agilent
10pF
Typical Electrical Characteristics (T=25°C)
0
-10
dB(Scs21)
dB(Sdd22)
dB(Sss11)
dB(Sds21)
-20
-30
-40
-50
0.5
m5
m6
m10
m9
m3
m4
m3
freq=2.400GHz
dB(Sds21)=-1.088
m4
freq=2.500GHz
dB(Sds21)=-1.272
m5
freq=4.800GHz
dB(Sds21)=-39.975
m6
freq=5.000GHz
dB(Sds21)=-40.968
m7
freq= 7.200GHz
dB(Sds21)=-32.798
4
2
Amp_diff
0
-2
-4
2.3
m13
m14
180
135
90
phase_diff
45
0
-45
-90
-135
-180
2.6
m8
freq= 7.500GHz
dB(Sds21)=-31.362
m9
freq= 2.400GHz
dB(Sss11)=-20.568
m10
freq= 2.500GHz
dB(Sss11)=-17.565
m12
m11
m8
m7
2.4
freq, GHz
2.5
1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
freq, GHz
m11
freq=2.400GHz
Amp_diff=-0.012
m13
freq=2.400GHz
phase_diff=173.688
m12
freq= 2.500GHz
Amp_diff=0.946
m14
freq= 2.500GHz
phase_diff=177.402
p
p
Balanced Differential impedance
m1
setting:
freq=2.450GHz
Un_imp=0.103 / -38.402
33 + j20Ω
impedance = 58 267 - j7 546
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 1.0
2015 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
Impedance Matched Balun + Harmonic Filter compatible with: Realtek RTL8188EU and
RTL8192EU and ST BlueNRG chipsets
Detail Specification: 2/27/2015
P/N 2450BM14A0023
Page 4 of 5
Typical Electrical Characteristics (T=25°C)
0
-10
dB(Scs21)
dB(Sdd22)
dB(Sss11)
dB(Sds21)
-20
-30
m5
m6
m8
m7
m3
m4
m3
freq=2.400GHz
dB(Sds21)=-1.110
m10
m9
m4
freq=2.500GHz
dB(Sds21)=-1.339
m5
freq=4.800GHz
dB(Sds21)=-38.313
m6
freq=5.000GHz
dB(Sds21)=-39.378
m7
freq= 7.200GHz
dB(Sds21)=-33.166
4
2
Amp_diff
m13
m14
180
135
90
phase_diff
45
0
-45
-90
-135
-180
2.6
m8
freq= 7.500GHz
dB(Sds21)=-31.687
m9
freq= 2.400GHz
dB(Sss11)=-16.989
m10
freq= 2.500GHz
dB(Sss11)=-13.562
m12
m11
0
-2
-4
2.3
-40
-50
0.5
2.4
freq, GHz
2.5
1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
freq, GHz
Balanced Differential impedance
m1
setting:
freq=2.450GHz
Un_imp=0.175 / -23.012
31.4 + j26.6Ω
m11
freq=2.400GHz
Amp_diff=0.107
m13
freq=2.400GHz
phase_diff=173.924
m12
freq= 2.500GHz
Amp_diff=0.958
m14
freq= 2.500GHz
phase_diff=177.914
0
-10
m3
m4
m3
freq=2.400GHz
dB(Sds21)=-1.104
m10
m4
freq=2.500GHz
dB(Sds21)=-1.324
m5
freq=4.800GHz
dB(Sds21)=-39.405
m6
freq=5.000GHz
dB(Sds21)=-40.286
m7
freq= 7.200GHz
dB(Sds21)=-32.224
4
2
Amp_diff
0
-2
-4
2.3
m13
m14
180
135
90
phase_diff
45
0
-45
-90
-135
-180
2.6
dB(Scs21)
dB(Sdd22)
dB(Sss11)
dB(Sds21)
-20
m9
m8
freq= 7.500GHz
dB(Sds21)=-30.794
m9
freq= 2.400GHz
dB(Sss11)=-28.379
m10
freq= 2.500GHz
dB(Sss11)=-18.192
m12
m11
-30
-40
-50
0.5
m5
m6
m8
m7
2.4
freq, GHz
2.5
1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
freq, GHz
m11
freq=2.400GHz
Amp_diff=-0.045
m13
freq=2.400GHz
phase_diff=174.155
m12
freq= 2.500GHz
Amp_diff=0.898
m14
freq= 2.500GHz
phase_diff=177.399
Balanced Differential impedance
m1
setting:
freq=2.450GHz
Un_imp=0.072 / -7.867
28.8 + j18.5Ω
i
d
57 643 j1 139
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 1.0
2015 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
Impedance Matched Balun + Harmonic Filter compatible with: Realtek RTL8188EU and
RTL8192EU and ST BlueNRG chipsets
Detail Specification: 2/27/2015
P/N 2450BM14A0023
Page 5 of 5
Application Notes, Layout Files, and more
www.johansontechnology.com/chipset-ipc
Packaging information
www.johansontechnology.com/ipcpackaging.html
Soldering Information
www.johansontechnology.com/ipcsoldering-profile
MSL Info
www.johansontechnology.com/technical-notes/msl-rating.html
Recommended Storage Condition and Max Shelf Life
www.johansontechnology.com/ipcstorage-shelflife
RoHS Compliance
www.johansontechnology.com/technical-notes/rohs-compliance.html
Antenna layout and tuning techniques
www.johansontechnology.com/tuning
Antenna layout review, tuning, and characterization services
www.johansontechnology.com/ipcantennaservices
Johanson Technology, Inc. reserves the right to make design changes without notice.
All sales are subject to Johanson Technology, Inc. terms and conditions.
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 1.0
2015 Johanson Technology, Inc. All Rights Reserved
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