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
B
D
2425
J
50
2
AHF
Rev A
Ultra Low Profile 0805 Balun
50Ω to 200Ω Balanced
Description
The BD2425J50200AHF is a low profile sub-miniature balanced to unbalanced
transformer designed for differential inputs and output locations on next generation
wireless chipsets in an easy to use surface mount package covering the GSM
frequencies. The BD2425J50200AHF is ideal for high volume manufacturing and is
higher performance than traditional ceramic and lumped element baluns. The
BD2425J50200AHF has an unbalanced port impedance of 50Ω and a 200Ω
balanced port impedance. This transformation enables single ended signals to be
applied to differential ports on modern semiconductors. The output ports have equal
amplitude (-3dB) with 180 degree phase differential. The BD2425J50200AHF 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 2400 2500 MHz
Unbalanced Port Impedance 50 Ω
Balanced Port Impedance 200 Ω
Return Loss 9.5 12.2 dB
Insertion Loss* 0.6 0.8 dB
Amplitude Balance 0.1 0.5 dB
Phase Balance 2 6 Degrees
CMRR 37 dB
Power Handling 2 Watts
Features:
• 2400 – 2500 MHz
• 0.7mm Height Profile
• 50 Ohm to 2 x 100 Ohm
• 802.11 b+g +n Compliant
• Low Insertion Loss
• Input to Output DC Isolation
• 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
6x
0.22
4x 0.65
6x 0.98
Orientation Marker
Denotes Pin Location
4
Orientation Marker
Denotes Pin Location
TOP VIEW (Near Side) SIDE VIEW BOTTOM VIEW (Far Side)
5
4
2
1
6
3
Pin
Balanced Port
GND
NC
Balanced Port
GND/DC Feed
Mechanical Outline
-Dimensions are in Millimeters
2.04±0.10
1.29±0.10
0.71±0.07 1 2 3
656x
0.30
Unbalanced Port
Designation
2x 0.15
4x 0.37
+RF GND
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
B
D
2425J50200AHF
Rev A
Typical Broadband Performance: 0 GHz. to 8.5 GHz.
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]
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
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
Frequency [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
-40
-35
-30
-25
-20
-15
-10
-5
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Frequency [MHz]
[dB]
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
B
D
2425
J
50
2
AHF
Rev A
Typical Performance: 2300 MHz. to 2600 MHz.
Return Loss - Input
-36
-33
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
2300
2350
2400
2450
2500
2550
2600
Frequency [MHz]
[dB]
Amplitude Balance
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
2300
2350
2400
2450
2500
2550
2600
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
2300
2350
2400
2450
2500
2550
2600
Frequency [M Hz]
[dB]
Phase Balance
-20
-15
-10
-5
0
5
10
15
20
2300
2350
2400
2450
2500
2550
2600
Frequency [MHz]
deg
CMRR
-40
-35
-30
-25
-20
-15
-10
-5
0
2300
2350
2400
2450
2500
2550
2600
Frequency [MHz]
[dB]
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
B
D
2425J50200AHF
Rev A
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. 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.
No Bias Footprint
6x .41
6x .33
.04
4x .25
.66
3x Transmission
lines
Plated thru holes to ground
Plated thru
holes to
ground
Circuit Pattern
Footprint Pad (s)
Solder Resist
Mounting Footprint
Dimensions are in Millimeters
PART ORIENTATION
TOP DOWN
DC Bias Footprint
6x .41
6x .33
.04
4x .25
.66
3x Transmission
lines
Plated thru
holes to
ground
Circuit Pattern
Footprint Pad (s)
Solder Resist
Mounting Footprint
Dimensions are in Millimeters
Capacitor
Plated thru
holes to
ground
PART ORIENTATION
TOP DOWN
DC Bias
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
B
D
2425
J
50
2
AHF
Rev A
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
.
.81
.25
2.41
1.75
3.50
4.00
1.60
8.00
4.00
2.00