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odel   D1631J 0 00AHF
Rev B
 
 Ultra Low Profile 0805 Balun
50 to 100 Balanced
 
 
Description
 
 
 
 
 
 
 
  The BD1631J50100AHF 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 802.11b+g+n,
GSM, DCS, PCS and UMTS. The BD1631J50100AHF is ideal for high volume
manufacturing and is higher performance than traditional ceramic and lumped
element baluns. The BD1631J50100AHF has an unbalanced port impedance of
50& and a 100& 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
BD1631J50100AHF is available on tape and reel for pick and place high volume
manufacturing. 
Detailed Electrical Specifications*:
 Specifications subject to change without notice. 
 
ROOM (25?/SPAN>?/SPAN> ?/SPAN>?/SPAN>C)
 
Parameter
Min.
Typ.
Max
Min.
Typ.
Max
Unit
Frequency
2.0
 
2.5
1.6
 
3.1
GHz
Unbalanced Port Imp.
 
50
 
 
50
 
 
Balanced Port Imp.**
 
100
 
 
100
 
 
Return Loss
14
17
 
10
13
 
dB
Insertion Loss***
 
0.6
0.7
 
0.7
0.9
dB
Amplitude Balance
 
0.15
0.6
 
0.7
1.0
dB
Phase Balance
 
2.3
4.8
 
2.3
4.8
Degrees
Power Handling
 
 
2
 
 
2
Watts
 
Features:
 
" 1.6  3.1 GHz 
" 0.7mm Height Profile 
" 50 Ohm to 2 x 50 Ohm 
" 802.11 b & g +n Compliant 
" Low Insertion Loss 
" DCS, PCS & UMTS 
Compliant
" Input to Output DC Isolation 
" Surface Mountable 
" Tape & Reel 
" Non-conductive Surface 
" RoHS Compliant 
" Halogen Free 
 
Operating Temperature
-55
 
+85
-55
 
+85
 
* Insertion Loss stated at room temperature (Insertion Loss is approximately 0.1 dB higher at +85 篊)
Outline Drawing
 
Mechanical Outline
-Dimensions are in Millimeters
2.04?.10
1.29?.10
0.68?.07
1
2
3
6
5
6x
0.30
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
Unbalanced
Designation
2x 0.15
4x 0.37
+RF GND
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