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Toll Free:
Europe:
Asia:
(315) 432-8909
(800) 411-6596
+44 2392-232392
+86 512-62749282
Model BD4859N50100AHF
Rev C
Ultra Low Profile 0404 Balun
50Ω to 100Ω Balanced
Description
The BD4859N50100AHF 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 BD4859N50100AHF is
ideal for high volume manufacturing and delivers higher performance than traditional
ceramic baluns. The BD4859N50100AHF 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
BD4859N50100AHF is available on tape and reel for pick and place high volume
manufacturing.
Detailed Electrical Specifications:
Specifications subject to change without notice.
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
• Halogen Free
ROOM (25°
°°
°C)
Parameter Min. Typ. Max Unit
Frequency 4800 5900 MHz
Unbalanced Port Impedance 50 Ω
Balanced Port Impedance 100 Ω
Return Loss 14 20 dB
Insertion Loss* 0.6 0.8 dB
Amplitude Balance 0.9 1.5 dB
Phase Balance 3 8 Degrees
CMRR 26 dB
Power Handling 1 Watts
Operating Temperature -55 +85 ºC
* Insertion Loss stated at room temperature (Insertion Loss is approximately 0.1 dB higher at +85 ºC)
Outline Drawing
1.04
±.10
1.04
±.10
.56
±.06
.30
.30
.50
.50
3x .25
3x .25
12
43
Bottom View (Far-side)
Side View
Top View (Near-side)
Mechanical Outline
Dimensions are in Millimeters
Tolerances are Non-Cumulative
Unbalanced Port
GND / DC Feed
+ RF GND
4
3
Designation
Pin
1
2
Balanced Port
Balanced Port
3x .27
3x .27
.24
.24
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Toll Free:
Europe:
Asia:
(315) 432-8909
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Model BD4859N50100AHF
Rev C
Typical Performance:4700 MHz. to 6100 MHz.
4.7 4.9 5.1 5.3 5.5 5.7 5.9 6.1
-36
-33
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
Return Loss (dB)
Freq [GHz]
Return Loss (dB)
4.7 4.9 5.1 5.3 5.5 5.7 5.9 6.1
-3.6
-3.3
-3
-2.7
-2.4
-2.1
-1.8
-1.5
-1.2
-0.9
-0.6
-0.3
0
Insertion Loss (dB)
Freq [GHz]
Insertion Loss (dB)
4.7 4.9 5.1 5.3 5.5 5.7 5.9 6.1
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
Amplitude Balance (dB)
Freq [GHz]
Amplitude Balance (dB)
4.7 4.9 5.1 5.3 5.5 5.7 5.9 6.1
-20
-15
-10
-5
0
5
10
15
20
Phase balance(degree)
Freq [GHz]
Phase balance(degree)
4.7 4.9 5.1 5.3 5.5 5.7 5.9 6.1
-36
-33
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
CMRR (dB)
Freq [GHz]
CMRR (dB)
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USA/Canada:
Toll Free:
Europe:
Asia:
(315) 432-8909
(800) 411-6596
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Model BD4859N50100AHF
Rev C
Wide Band Performance: 10 MHz. to 8010 MHz.
0.01 1.01 2.01 3.01 4.01 5.01 6.01 7.01 8.01
-36
-33
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
Return Loss (dB)
Freq [GHz]
Return Loss (dB)
0.01 1.01 2.01 3.01 4.01 5.01 6.01 7.01 8.01
-3.6
-3.3
-3
-2.7
-2.4
-2.1
-1.8
-1.5
-1.2
-0.9
-0.6
-0.3
0
Insertion Loss (dB)
Freq [GHz]
Insertion Loss (dB)
0.01 1.01 2.01 3.01 4.01 5.01 6.01 7.01 8.01
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
Amplitude Balance (dB)
Freq [GHz]
Amplitude Balance (dB)
0.01 1.01 2.01 3.01 4.01 5.01 6.01 7.01 8.01
-20
-15
-10
-5
0
5
10
15
20
Phase balance(degree)
Freq [GHz]
Phase balance(degree)
0.01 1.01 2.01 3.01 4.01 5.01 6.01 7.01 8.01
-36
-33
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
CMRR (dB)
Freq [GHz]
CMRR (dB)
Visit us at
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USA/Canada:
Toll Free:
Europe:
Asia:
(315) 432-8909
(800) 411-6596
+44 2392-232392
+86 512-62749282
Model BD4859N50100AHF
Rev C
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 organic PTFE based composites which possess excellent
electrical and mechanical stability. Xinger components are compliant to a variety of ROHS and Green standards and
ready for Pb-free soldering processes. Pads are Gold plated with a Nickel barrier.
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
Solder Resist
Footprint Pad (s)
Circuit Pattern
.50
3x .29
.50
Plated thru
hole to
ground
.33
.22
.22
3x Transmission
Line
3x .29
Dimensions are in Millimeters
Mounting Footprint
3x .29
3x .29
.50
.33
.33
.50
3x Transmission
Line
.22
.22
Plated thru
hole to
ground
Solder Resist
Footprint Pad (s)
Circuit Pattern
Dimensions are in Millimeters
Mounting Footprint
Visit us at
www.anaren.com
USA/Canada:
Toll Free:
Europe:
Asia:
(315) 432-8909
(800) 411-6596
+44 2392-232392
+86 512-62749282
Model BD4859N50100AHF
Rev C
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.
4.00
Ø1.50
1.21
.70
.18
4.00
1.21
2.00
8.00
3.50
1.75
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
