Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 6/03A
Dual-Band WLAN Balun
2.42.5 GHz and 5.155.85 GHz
Features
LTCC Technology
Two Baluns in One Package
SMD Package, 6 x 3 x 1.3 mm
Applications
WLAN Systems Including 802.11a,b,g
Outline Drawing
AM118
Description
The AM118 is a ceramic dual-band WLAN balun using
LTCC design and manufacturing technology. The module
consists of two baluns, one for the 2.42.485 GHz band and
one for the 5.155.85 GHz band. The design is compatible
with 802.11a, b, g specifications.
6.00
3.00
1.30
10X 0.50
6X 0.50
6X 1.00
PIN 1
2X 0.50
2X 3.00
TO METAL PAD EDGE
PIN 12
2X 0.75
2X 1.50
2X 0.25
TOP VIEW
BOTTOM VIEW
METAL PADS
METAL PAD 10X
PIN 1 INDICATOR
4X 0.63
SIDE VIEW
Preliminary
Parameter
Min.
Typ.
Max.
Unit
2.45 GHz Balun Section
Passband
2.4
2.485
GHz
Ant. R
X
Return Loss
10
15
dB
T
X
Balanced Ports Phase Difference
170
180
190
Deg.
T
X
Balanced Ports Amplitude Difference
0.5
0.7
dB
5.5 GHz Balun Section
Passband
5.15
5.85
GHz
Ant. R
X
Return Loss
10
14
dB
T
X
Balanced Ports Phase Difference
160
180
200
Deg.
T
X
Balanced Ports Amplitude Difference
0.9
1.3
dB
Electrical Specifications at 25C
Dimensions in mm. Tolerance is 0.2 mm unless otherwise specified.
Typical variation over temperature (-40 to +85 C) is 0.003 dB/C at the 2.45 GHz section and 0.009 dB/C at the 5.50 GHz section.
Dual-Band WLAN Balun 2.42.5 GHz and 5.155.85 GHz
AM118
2
Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 6/03A
Typical Performance Data
1
2
3
4
5
6
Frequency (GHz)
5.50 GHz T
X
Loss vs. Frequency
Loss (dB)
0
-30
-25
-20
-15
-10
-5
0
1
2
3
4
5
6
Frequency (GHz)
2.45 GHz T
X
Loss vs. Frequency
Loss (dB)
0
-30
-25
-20
-15
-10
-5
0
Frequency (GHz)
2.45 GHz T
X
Loss vs. Frequency
Loss (dB)
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
2.3
2.4
2.5
2.6
T
XP
T
XN
Frequency (GHz)
5.50 GHz T
X
Loss vs. Frequency
Loss (dB)
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
T
XN
T
XP
Frequency (GHz)
2.45 GHz Phase Balance vs. Frequency
Phase Balance (Deg.)
-200
-190
-180
-170
-160
2.3
2.4
2.5
2.6
Frequency (GHz)
5.50 GHz Phase Balance vs. Frequency
Phase Balance (Deg.)
-200
-190
-180
-170
-160
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
Dual-Band WLAN Balun 2.42.5 GHz and 5.155.85 GHz
AM118
Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
3
Specifications subject to change without notice. 6/03A
1
2.45 GHz_OUT
2
GND
3
GND
46
5.50 GHz_OUT
5
12
11
10
9
87
2.45 T
XP
5.5 T
XP
2.45 T
XN
5.5 T
XN
GND
GND
GND
GND
Pin Out (Top View)
Balun
5.5 TxN
5.5 TxP
2.4T xP
2.4T xN
5.5_OUT
(ANT)
2.4_OUT
(ANT)
Balun
Block Diagram
2.4T
XN
2.4T
XP
SK40019-1
REV -
DB SW-BAL MOD
1
AM118-613
2.4 GHZ
OUT
OUT
5 GHZ
5T
XP
5T
XN
Layout for Test Board
0.00
1.07
2.08
2.54
3.15
0.61
0.00
0.61
1.02
1.62
2.03
2.64
3.05
3.66
4.06
4.67
5.08
0.00
2.08
3.61
5.69
Suggested Land Pattern (mm)
Dimensions in mm.
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