Available on Tape
and Reel for Pick and
Place Manufacturing.
USA/Canada:
Toll Free:
Europe
:
(315) 432-8909
(800) 411-6596
+44 2392-232392
Model BD4859N50100A00
Rev F
Ultra Low Profile 0404 Balun
50Ω to 100Ω Balanced
Description
The BD4859N50100A00 is a low cost, low profile sub-miniature unbalanced to
balanced transformer designed for differential inputs and output locations on modern
chipsets in an easy to use surface mount package covering 802.11a Uni-Band II &
III and the Japanese ISM band (4.9 GHz). The BD4859N50100A00 is ideal for high
volume manufacturing and delivers higher performance than traditional ceramic
baluns. The BD4859N50100A00 has an unbalanced port impedance of 50Ω and a
100Ω balanced port impedance. This transformation enables single ended signals to
be applied to differential ports on modern integrated chipsets. The output ports have
equal amplitude (-3dB) with 180 degree phase differential. The BD4859N50100A00
is available on tape and reel for pick and place high volume manufacturing.
Detailed Electrical Specifications: Specifications subject to change without notice.
ROOM (25°
°°
°C)
Parameter Min. Typ. Max Unit
Frequency 4800 5900 MHz
Unbalanced Port Impedance 50 Ω
Balanced Port Impedance 100 Ω
Return Loss 15 20 dB
Insertion Loss* 0.4 0.6 dB
Amplitude Balance 0.9 1.5 dB
Phase Balance 3 8 Degrees
CMRR 26 dB
Power Handling 1 Watts
Features:
• 4800 – 5900 MHz
• 0.57 mm Height Profile
• 50 Ohm to 2 x 50 Ohm
• Low Insertion Loss
• 802.11a Uni-Band II & III
• Home Cordless Compliant
• Surface Mountable
• Tape & Reel
• Non-conductive Surface
• RoHS Compliant
Operating Temperature -55 +85 ºC
* Insertion Loss stated at room temperature (Insertion Loss is approximately 0.1 dB higher at +85 ºC)
Outline Drawing
Mechanical Outline
Dimensions are in Inches [Millimeters]
Tolerances are Non-Cumulative
Bottom View (Far-side)Side ViewTop View (Near-side)
Unbalanced Port
GND / DC Feed
+ RF GND
4
3
Designation
Pin
1
2
12
3
4
Balanced Port
.041
±.004
[1.05
±0.10
]
.041
±.004
[1.05
±0.10
]
.022
±.001
[0.57
±0.03
]
.020 [0.50]
.020 [0.50]
Balanced Port
3x.010
[0.25]
3x.010
[0.25]
0.12 [0.30]
.012 [0.30]
USA/Canada:
Toll Free:
Europe:
(315) 432-8909
(800) 411-6596
+44 2392-232392
Available on Tape and
Reel for Pick and Place
Manufacturing.
Model BD4859N50100A00
Rev F
Typical Performance:4700 MHz. to 6100 MHz.
Return Loss - Input
-36
-33
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
4700
4800
4900
5000
5100
5200
5300
5400
5500
5600
5700
5800
5900
6000
6100
Frequency [MHz]
[dB]
Insertion Loss
-3.6
-3.3
-3
-2.7
-2.4
-2.1
-1.8
-1.5
-1.2
-0.9
-0.6
-0.3
0
4700
4800
4900
5000
5100
5200
5300
5400
5500
5600
5700
5800
5900
6000
6100
Frequency [MHz]
[dB]
Amplitude Balance
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
4700
4800
4900
5000
5100
5200
5300
5400
5500
5600
5700
5800
5900
6000
6100
Freque ncy [MHz]
[dB]
Phase Balance
-20
-15
-10
-5
0
5
10
15
20
4700
4800
4900
5000
5100
5200
5300
5400
5500
5600
5700
5800
5900
6000
6100
Freque ncy [MHz]
deg
CMRR
-36
-33
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
4700
4800
4900
5000
5100
5200
5300
5400
5500
5600
5700
5800
5900
6000
6100
Frequency [MHz]
[dB]
Available on Tape
and Reel for Pick and
Place Manufacturing.
USA/Canada:
Toll Free:
Europe
:
(315) 432-8909
(800) 411-6596
+44 2392-232392
Model BD4859N50100A00
Rev F
Wide Band Performance: 500 MHz. to 8500 MHz.
Return Loss - Input
-36
-33
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Frequency [MHz]
[dB]
Insertion Loss
-3.6
-3.3
-3
-2.7
-2.4
-2.1
-1.8
-1.5
-1.2
-0.9
-0.6
-0.3
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Fre quency [MHz]
[dB]
Amplitude Balance
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Freque ncy [MHz]
[dB]
Phase Balance
-20
-15
-10
-5
0
5
10
15
20
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Frequency [MHz]
deg
CMRR
-36
-33
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Freque ncy [MHz]
[dB]
USA/Canada:
Toll Free:
Europe:
(315) 432-8909
(800) 411-6596
+44 2392-232392
Available on Tape and
Reel for Pick and Place
Manufacturing.
Model BD4859N50100A00
Rev F
Mounting Configuration:
In order for Xinger surface mount components to work optimally, the proper impedance transmission lines must be
used to connect to the RF ports. If this condition is not satisfied, insertion loss, Isolation and VSWR may not meet
published specifications.
All of the Xinger components are constructed from ceramic filled PTFE composites which possess excellent electrical
and mechanical stability having X and Y thermal coefficient of expansion (CTE) of 17 ppm/
o
C.
An example of the PCB footprint used in the testing of these parts is shown below. An example of a DC-biased
footprint is also shown below. In specific designs, the transmission line widths need to be adjusted to the unique
dielectric coefficients and thicknesses as well as varying pick and place equipment tolerances
With No DC Bias With DC Bias
Plated thru
hole to
ground
Solder Resist
Footprint Pad (s)
Circuit Pattern
3X Transmission
Line
3X .011
[0.29]
3X .011
[0.29]
.020
[0.50]
.020
[0.50]
Dimensions are in Inches [Millimeters]
Mounting Footprint
.008 [0.21]
.008 [0.21]
.014 [0.36]
Plated thru
hole to
ground
Solder Resist
Footprint Pad (s)
Circuit Pattern
3X Transmission
Line
3X .011
[0.29]
3X .011
[0.29]
.020
[0.50]
.020
[0.50]
Dimensions are in Inches [Millimeters]
Mounting Footprint
.008 [0.21]
.008 [0.21]
.014 [0.36]
Available on Tape
and Reel for Pick and
Place Manufacturing.
USA/Canada:
Toll Free:
Europe
:
(315) 432-8909
(800) 411-6596
+44 2392-232392
Model BD4859N50100A00
Rev F
Packaging and Ordering Information
Parts are available in reel and are packaged per EIA 481-2. Parts are oriented in tape and reel as shown below. Minimum order
quantities are 4000 per reel. See Model Numbers below for further ordering information.
B
ØA ØC
REEL DIMENSIONS (inches [mm])
ØA
B
ØC
0.32 [8.0]
2.0 [50.8]
7.00 [177.8]
4000
QUANTITY/REEL
TABLE 1
ØD
0.512 [13.0]
ØD
