Application Note AN020 nRF51822 nRF51422

High Frequency Ceramic Solutions
Date: 06/04/2014
Application Note: AN020
M.Carmona/I.Johnson
Application Note for Nordic Semi's nRF51822-QFAA, nRF51422-QFAA, nRF51822-QFAB,
nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC Integrated RF Front End Solution
Using Johanson's 1.6x0.8mm Impedance Matched Balun Filter (BPF)
2.1mm
Abstract
The nRF51822 and nRF51422 devices from
Nordic Semiconductor are powerful, highly
flexible, multiprotocol SoCs designed for
Bluetooth® low energy, ANT, and 2.4 GHz ultralow power wireless applications. The devices
are built around an ARM® Cortex™ CPU and
integrate fully compliant Bluetooth low energy
and ANT stacks. The devices also include a
rich selection of analog and digital peripherals such as ADC, serial interfaces, PWM, and
quadrature demodulator - that can be used in a
wide range of ultra-low power applications.
This application note describes how to use
Johanson Technology’s 2450BM14E0003
balun-filter, shares active measured results
obtained with the chipsets, provides design files
for ease of use on any PCB/Application
environment and RF technical support contact
info at Johanson Technology.
0.52mm
Introduction
In partnership with Nordic Semiconductor, Johanson Technology has developed an 6-pin EIA 0603
(1.6mmx0.8mmx0.7mm) ceramic passive device that contains the following functions:
-Differential complex impedance (X+jY) matching network for the nRF51822 and nRF51422
-Differential to 50Ω single-ended balun
-Specifically designed BPF to pair with the nRF chipsets for FCC/ETC (+Korea, Japan, China)
emissions compliance
This front-end 6-pin device considerably reduces implementation size area by using smaller
effective PCB real estate usage. Also, it reduces component count, eliminates RF variability (100%
RF tested before T&R), and offers excellent temperature stability (4ppm). AEC-Q200 available.
Design/gerber/layout files
www.johansontechnology.com/nordic
Technical Support
http://www.johansontechnology.com/component/techquestion
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 2.0
2015 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
Application Note: AN020
Date: 06/04/2014
M.Carmona/I.Johnson
Application Note for Nordic Semi's nRF51822-QFAA, nRF51422-QFAA, nRF51822-QFAB,
nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC Integrated RF Front End Solution
Using Johanson's 1.6x0.8mm Impedance Matched Balun Filter (BPF)
Schematic nRF51822-QFAA & balun-filter 2450BM14E0003
Schematic nRF51422-QFAA & balun-filter 2450BM14E0003
More schematic examples, download the layout/gerber files, BOM, etc go to: www.johansontechnology.com/nordic
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 2.0
High Frequency Ceramic Solutions
Application Note: AN020
Date: 06/04/2014
M.Carmona/I.Johnson
Application Note for Nordic Semi's nRF51822-QFAA, nRF51422-QFAA, nRF51822-QFAB,
nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC Integrated RF Front End Solution
Using Johanson's 1.6x0.8mm Impedance Matched Balun Filter (BPF)
Johanson 2450BM14E0003 component Description
Johanson uses 6/6 RoHS Green Low-Temperature-CoFired-Ceramic (LTCC) integrated passive
technology in a 6-pin (Sn plated) monolithic structure. This component is 100% RF Tested, making
it a more reliable system, impedance controlled environment, consistent-guaranteed RF
2450BM14E0003 Internal Representative Schematic




To perfrom parametric simulations with our balun-filter, download the touchstone file at: www.johansontechnology.com/nordic
Layout of nRF & balun-filter 2450BM14E0003
nRF51822 reference design
nRF51422 reference design
More schematic examples, download the layout/gerber files, BOM, etc go to: www.johansontechnology.com/nordic
Contact our RF Applications Engineers to revise your layout at: http://www.johansontechnology.com/component/techquestion
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 2.0
High Frequency Ceramic Solutions
Date: 06/04/2014
Application Note: AN020
M.Carmona/I.Johnson
Application Note for Nordic Semi's nRF51822-QFAA, nRF51422-QFAA, nRF51822-QFAB,
nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC Integrated RF Front End Solution
Using Johanson's 1.6x0.8mm Impedance Matched Balun Filter (BPF)
Measured Conductive measurements of nRF51822 + 2450BM14E0003 on Reference Design PCB
0dBm, 2440MHz (Mid)
Mid 0dBm Fundamental
Mid 0dBm 4th harmonic
Mid 0dBm 2nd harmonic
Mid 0dBm 5th harmonic
Mid 0dBm 3rd harmonic
Mid 0dBm Local Oscillator
Contact our RF Applications Engineers to revise your layout at:
www.johansontechnology.com/component/techquestion
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 2.0
High Frequency Ceramic Solutions
Date: 06/04/2014
Application Note: AN020
M.Carmona/I.Johnson
Application Note for Nordic Semi's nRF51822-QFAA, nRF51422-QFAA, nRF51822-QFAB,
nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC Integrated RF Front End Solution
Using Johanson's 1.6x0.8mm Impedance Matched Balun Filter (BPF)
Measured Conductive measurements of nRF51822 + 2450BM14E0003 on Reference Design PCB
+4dBm, 2440MHz (Mid)
Mid +4dBm Fundamental
Mid +4dBm 4th harmonic
Mid +4dBm 2nd harmonic
Mid +4dBm 5th harmonic
Mid +4dBm 3rd harmonic
Mid +4dBm 2X(Local Oscillator)
Contact our RF Applications Engineers to revise your layout at:
www.johansontechnology.com/component/techquestion
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 2.0
High Frequency Ceramic Solutions
Date: 03/19/2015
Application Note: AN020
M.Carmona/I.Johnson
Application Note for Nordic Semi's nRF51822-QFAA, nRF51422-QFAA, nRF51822-QFAB,
nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC Integrated RF Front End Solution
Using Johanson's 1.6x0.8mm Impedance Matched Balun Filter (BPF)
Measured Conductive measurements of 2450BM14E0003 + nRF51x22-QxAx CSP family chipsets on Reference Design PCB
+4 dBm Setting
nRF51822‐QFAAGC
Board identifier
Fundamental
2nd harmonic
3rd harmonic
4th harmonic
5th harmonic
LO
LO/2
2LO
Fundamental Hi
2nd harmonic
3rd harmonic
4th harmonic
5th harmonic
LO
LO/2
2LO
Fundamental Mid
2nd harmonic
3rd harmonic
4th harmonic
5th harmonic
LO
LO/2
2LO
nRF51822‐QFABCB
nRF51422‐QFACAB
Frequency
2,402.00
4,804.00
7,206.00
9,608.00
12,010.00
2,747.43
1,373.71
5,494.86
2,480.00
4,960.00
7,440.00
9,920.00
12,400.00
2,836.57
1,418.29
5,673.14
2,440.00
4,880.00
7,320.00
9,760.00
12,200.00
2,790.86
1,395.43
5,581.71
Frequency
2,402.00
4,804.00
7,206.00
9,608.00
12,010.00
2,747.43
1,373.71
5,494.86
2,480.00
4,960.00
7,440.00
9,920.00
12,400.00
2,836.57
1,418.29
5,673.14
2,440.00
4,880.00
7,320.00
9,760.00
12,200.00
2,790.86
1,395.43
5,581.71
Board 3
Board 4
Board 5
Board 6
Board 9
Board 10
Board 11
Board 12
2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003
1.02
0.95
0.20
0.83
0.30
0.61
0.32
0.61
‐37.85
‐36.08
‐38.38
‐37.50
‐36.73
‐38.71
‐35.59
‐38.63
‐69.37
‐65.56
‐65.81
‐68.30
‐62.41
‐67.59
‐66.10
‐60.23
‐76.26
‐74.36
‐77.55
‐74.48
‐77.49
‐74.12
‐76.11
‐74.08
‐78.80
‐78.74
‐80.06
‐80.13
‐79.81
‐79.73
‐80.37
‐79.80
‐58.19
‐57.45
‐56.71
‐57.08
‐56.21
‐56.83
‐57.39
‐57.01
‐76.47
‐77.37
‐80.76
‐79.37
‐80.02
‐79.94
‐77.94
‐78.59
‐75.16
‐74.64
‐75.75
‐75.18
‐76.94
‐76.92
‐76.17
‐76.22
1.26
1.25
0.36
1.01
0.69
0.99
0.62
0.89
‐45.50
‐43.94
‐45.67
‐44.70
‐42.86
‐44.72
‐41.88
‐44.27
‐53.32
‐52.46
‐54.63
‐53.07
‐55.41
‐55.89
‐55.66
‐53.35
‐80.05
‐79.05
‐78.29
‐76.54
‐76.19
‐77.67
‐78.02
‐74.74
‐78.90
‐79.26
‐79.07
‐79.14
‐80.22
‐78.66
‐79.17
‐78.44
‐60.55
‐59.57
‐59.53
‐59.76
‐58.65
‐59.11
‐60.04
‐59.77
‐77.44
‐77.30
‐81.17
‐78.08
‐78.16
‐79.84
‐77.49
‐78.64
‐76.12
‐75.11
‐77.05
‐76.29
‐77.57
‐77.91
‐76.56
‐75.41
1.23
1.25
0.48
1.11
0.65
0.95
0.60
0.92
‐40.27
‐38.52
‐40.81
‐39.70
‐39.94
‐42.07
‐38.61
‐41.54
‐58.15
‐55.60
‐56.51
‐57.34
‐60.66
‐65.78
‐63.92
‐58.44
‐75.99
‐74.46
‐74.19
‐71.84
‐76.05
‐74.50
‐75.73
‐75.11
‐79.13
‐79.32
‐78.78
‐79.11
‐80.14
‐79.57
‐80.07
‐79.02
‐58.95
‐58.11
‐57.42
‐58.04
‐56.98
‐57.58
‐58.43
‐58.11
‐77.57
‐77.05
‐83.73
‐80.87
‐80.49
‐79.48
‐78.07
‐79.50
‐74.58
‐74.01
‐74.43
‐75.10
‐75.21
‐77.14
‐77.05
‐75.01
0 dBm Setting
nRF51822‐QFAAGC
Board identifier
Fundamental
2nd harmonic
3rd harmonic
4th harmonic
5th harmonic
LO
LO/2
2LO
Fundamental Hi
2nd harmonic
3rd harmonic
4th harmonic
5th harmonic
LO
LO/2
2LO
Fundamental Mid
2nd harmonic
3rd harmonic
4th harmonic
5th harmonic
LO
LO/2
2LO
nRF51822‐QFAAHA
Board 3
Board 4
Board 5
Board 6
Board 9
Board 10
Board 11
Board 12
2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003 2450BM14E0003
4.13
3.90
3.75
3.93
3.71
3.65
3.51
3.84
‐48.90
‐47.47
‐57.85
‐51.25
‐51.36
‐53.63
‐50.67
‐56.63
‐53.63
‐51.92
‐55.06
‐53.68
‐52.41
‐55.91
‐56.26
‐51.10
‐69.85
‐69.60
‐75.20
‐70.76
‐81.18
‐80.54
‐80.79
‐81.33
‐79.86
‐80.27
‐80.19
‐79.45
‐79.66
‐80.31
‐78.80
‐79.17
‐58.19
‐57.45
‐56.71
‐57.08
‐56.16
‐56.84
‐57.30
‐57.10
‐76.47
‐77.37
‐80.76
‐79.37
‐79.52
‐78.34
‐76.85
‐78.44
‐75.16
‐74.64
‐75.75
‐75.18
‐76.01
‐77.82
‐76.16
‐75.30
4.17
4.02
3.71
3.92
3.87
3.85
3.69
3.92
‐46.40
‐44.54
‐52.84
‐49.43
‐56.99
‐53.67
‐54.07
‐58.21
‐44.28
‐43.86
‐46.54
‐45.00
‐48.82
‐48.88
‐49.57
‐47.14
‐68.95
‐71.11
‐80.62
‐75.67
‐80.71
‐79.67
‐79.43
‐78.16
‐78.56
‐79.04
‐79.25
‐79.24
‐78.13
‐79.94
‐79.45
‐78.61
‐60.55
‐59.57
‐59.53
‐59.76
‐58.61
‐59.21
‐59.99
‐59.92
‐77.44
‐77.30
‐81.17
‐78.08
‐78.33
‐78.01
‐78.08
‐77.32
‐76.12
‐75.11
‐77.05
‐76.29
‐76.81
‐77.60
‐77.95
‐75.22
4.23
4.08
3.85
4.10
3.91
3.94
3.76
3.94
‐56.82
‐53.82
‐62.29
‐62.45
‐50.12
‐47.45
‐47.96
‐49.83
‐51.08
‐49.45
‐50.82
‐50.61
‐47.92
‐49.70
‐51.99
‐46.09
‐80.32
‐80.44
‐80.01
‐80.41
‐71.25
‐67.13
‐76.64
‐70.67
‐78.91
‐79.16
‐79.43
‐79.48
‐78.20
‐78.94
‐78.84
‐78.63
‐58.95
‐58.11
‐57.42
‐58.04
‐57.01
‐57.58
‐58.30
‐57.92
‐77.57
‐77.05
‐83.73
‐80.87
‐79.32
‐80.47
‐79.33
‐78.58
‐74.58
‐74.01
‐74.43
‐75.10
‐74.91
‐75.68
‐75.30
‐74.66
nRF51822‐QFAAHA
nRF51822‐QFABCB
nRF51422‐QFACAB
Contact our RF Applications Engineers to revise your layout at:
www.johansontechnology.com/component/techquestion
www.johansontechnology.com
4001 Calle Tecate • Camarillo, CA 93012, USA • TEL +1.805.389.1166
Ver 2.0
High Frequency Ceramic Solutions
2.45GHz Impedance Matched Balun + Band Pass Filter: Optimized for Nordic's Chipsets: nRF51822-QFAA,
nRF51422-QFAA, nRF51822-QFAB, nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC
P/N 2450BM14E0003
Detail Specification: 3/20/2015
For the Full App Note and Layout Files, go to: www.johansontechnology.com/nordic
General Specifications
2450BM14E0003
Part Number
2400 - 2500
Frequency (MHz)
50 Ω (single ended)
Unbalanced Impedance
Impedance matched to Nordic
Differential Balanced Impedance Semi nRF51822-QFAx and
nRF51422-QFAx chipsets
Average Insertion Loss when
connected to the nRF51XX
chipset (Active OP)
0.9dB [email protected]
1.5dB max. (-45 to +85C)
Insertion Loss when component
measured by itself (passive insertion
loss)
2.1dB typ. @25C
2.5dB max. (-45 to +85C)
Attenuation Differential mode (dB):
15 typ. 9.5 min.
Return Loss (dB)
800-928 MHz
15 typ.@25°C 10 min.
Amplitude Difference
1200-1500 MHz
14 typ.@25°C 10 min.
Reel Quantity
150 ± 15deg
4,000 pcs
4800~5000MHz
35 typ.@25°C 20 min.
Operating Temperature
-40 to +85°C
7200~7500MHz
21 typ.@25°C 18 min.
Recommended Storage
Conditions for unused T&R
product
+5 to +35°C, Humidity: 4575%RH, 18 mos. Max
Attenuation Common mode (dB):
44 typ.@25°C 20 min.
4800~5000MHz
1W max.(CW)
Power Capacity
You can download measured s-parameters of this component at: www.johansontechnology.com/nordic
Part Number Explanation
P/N Packaging Style
Suffix
Termination Style
Bulk
Suffix = S
Eg. 2450BM14E0003S
T&R
Suffix = T
Eg. 2450BM14E0003T
100% Tin
Suffix = None
Eg. 2450BM14E0003(T or S)
Mechanical Dimensions
Terminal Configuration
In
mm
No.
Function
L
0.063 ± 0.004
1.60 ± 0.10
1
Unbalanced Port
W
0.031 ± 0.004
0.80 ± 0.10
2
GND
T
0.024 ± 0.004
0.60 ± 0.10
a
0.008 ± 0.004
0.20 ± 0.10
b
0.008 +.004/-.006
0.20 +0.1/-0.15
c
0.006 ± 0.004
0.15 ± 0.10
g
0.012 ± 0.004
0.30 ± 0.10
p
0.020 ± 0.002
0.50 ± 0.05
W
c
L
a
p
T
g
b
3
Balanced Port
4
Balanced Port
5
DC Feed
6
GND






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 2.0
2015 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
2.45GHz Impedance Matched Balun + Band Pass Filter: Optimized for Nordic's Chipsets: nRF51822-QFAA,
nRF51422-QFAA, nRF51822-QFAB, nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC
P/N 2450BM14E0003
Detail Specification: 3/20/2015
Mounting Considerations
0.25
2.2nF
Cap.
Land
Via Through
*






nRF51X
0.3
0.55
*Line width should be designed to match
50Ω characteristic impedance, depending
on PCB material and thickness.
0.25
Do you need the layout/gerber files of the above? Go to: www.johansontechnology.com/nordic or send us a
message to review your layout at: www.johansontechnology.com/component/techquestion
Solo-Component Characterization Scheme
Port 1*
Network
Analyzer**
Port 3(50Ω)
Port 2*
GND
Port 3: Unbalanced Port
Ports 1 and 2: Balanced Port
IL=Sds21, Att_DM=Sds21, Att_CM=Scs21
RL=Sss11
Amp_balance = dB(S(1,3)/S(2,3))
Phase_balance = Phase(S(1,3)/S(2,3))
*Impedance for ports 1 and 2
= Conjugate to Balanced Impedance/2
**E5071B from Agilent
GND
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 2.0
2015 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
2.45GHz Impedance Matched Balun + Band Pass Filter: Optimized for Nordic's Chipsets: nRF51822-QFAA,
nRF51422-QFAA, nRF51822-QFAB, nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC
P/N 2450BM14E0003
Detail Specification: 3/20/2015
Typical Electrical Characteristics (T=25°C)
0
-20
-30
-40
-50
0
1
2
3
4
5
6
7
8
freq, GHz
4
180
2
135
0
90
-2
45
Phase_bal_deg
Amp_bal_dB
Scs21
Sss11
Sds21
-10
-4
0
2.30 2.35 2.40 2.45 2.50 2.55 2.60
freq, GHz
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 2.0
2015 Johanson Technology, Inc. All Rights Reserved
High Frequency Ceramic Solutions
2.45GHz Impedance Matched Balun + Band Pass Filter: Optimized for Nordic's Chipsets: nRF51822-QFAA,
nRF51422-QFAA, nRF51822-QFAB, nRF51422-QFAB, nRF51822-QFAC, and nRF51422-QFAC
P/N 2450BM14E0003
Detail Specification: 3/20/2015
Application Notes, Layout Files, and more
www.johansontechnology.com/nordic
Packaging information
www.johansontechnology.com/ipcpackaging.html
Soldering Information
www.johansontechnology.com/ipcsoldering-profile
MSL Info
www.johansontechnology.com/technical-notes/msl-rating.html
Recommneded 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 2.0
2015 Johanson Technology, Inc. All Rights Reserved