FREQ.
RANGE
(MHz)
ISOLATION
(dB)
INSERTION LOSS
1
(dB)
Avg. of Coupled Outputs
less 3 dB
f
L
f
U
PHASE
UNBALANCE
(Degrees)
AMPLITUDE
UNBALANCE
(dB)
INPUT
POWER
(W)
f
L
-f
U
Typ. Min.
--
X
--
X
Max.
Max.
below 25C
800-1200
23
14
0.25
0.44
0.02
6.0
1.2
50
2
1. Includes test fixture losses.
2. Derate linearly to 10W at 100C
Thermal compound may be applied to decrease body temperature. See application note AN-10-007
Frequency
(MHz)
Insertion Loss
(dB)
Amplitude
Unbalance
(dB)
Isolation
(dB)
Phase
Unbalance
(deg.)
VSWR
S
VSWR
1
VSWR
2
S-1
S-2
A
B
C
D
E
F
G
H
.250
.300
0.50
.310
.050
.015
.050
.066
6.35
7.62 12.70
7.87
1.27
0.38
1.27
1.68
J
K
L
M
N
P
Q
R
wt
.030
.095
.330
.100
.020
.015
.070
.014 grams
0.76
2.41
8.38
2.54
0.51
0.38
1.78
0.36
0.2
QBA-12
INSERTION LOSS
2.0
2.4
2.8
3.2
3.6
4.0
800
900
1000
1100
1200
FREQUENCY (MHz)
INSERTION
LOSS
(dB)
S-1 (dB)
S-2(dB)
INTERNET
http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Distribution Centers NORTH AMERICA 800-654-7949 417-335-5935 Fax 417-335-5945 EUROPE 44-1252-832600 Fax 44-1252-837010
Mini-Circuits
Mini-Circuits ISO 9001 & ISO 14001 Certified
Typical Performance Data
Splitter Electrical Specifications
Maximum Ratings
Pin Connections
SUMPORT
1
PORT 1 (+90)
10
PORT 2 (0)
6
GROUND
2,3,4,7,8,9
50 OHM TERM EXTERNAL
5
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 100C
QBA-12+
QBA-12
2 Way-90 50 800 to 1200 MHz
Power Splitter/Combiner
REV. B
M98898
EDB-991005
QBA-12
WZ/BC/CP
060915
Surface Mount
Features
low insertion loss, 0.25 dB typ.
high power capability, 50W
isolation, 23 dB typ.
ceramic body, good for heat dissipation
solder plated leads for excellent solderability
protected by U.S. Patent 5,534,830
Applications
cellular
ISM
CASE STYLE: SM33
PRICE: $6.95 ea. QTY (10-49)
QBA-12
ISOLATION
15
18
21
24
27
30
33
800
900
1000
1100
1200
FREQUENCY (MHz)
ISOLATION
(dB)
QBA-12
PHASE UNBALANCE
90
91
92
93
94
800
900
1000
1100
1200
FREQUENCY (MHz)
P
H
A
S
E
U
N
B
A
L
A
N
C
E
(
D
e
g
.
)
electrical schematic
Outline Drawing
Outline Dimensions ( )
inch
mm
Demo Board MCL P/N: TB-115
Suggested PCB Layout (PL-004)
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications.
800.00
3.62
2.93
0.70
27.63
90.49
1.08
1.21
1.09
825.00
3.54
3.00
0.54
27.27
90.70
1.08
1.21
1.09
850.00
3.46
3.05
0.40
26.77
90.62
1.08
1.22
1.09
875.00
3.43
3.07
0.36
26.21
90.51
1.08
1.23
1.09
900.00
3.45
3.16
0.28
25.57
90.98
1.09
1.24
1.10
925.00
3.37
3.21
0.16
24.92
91.26
1.09
1.25
1.10
950.00
3.29
3.21
0.09
24.23
91.13
1.11
1.26
1.11
1000.00
3.37
3.31
0.06
22.89
91.51
1.13
1.28
1.13
1025.00
3.34
3.33
0.01
22.20
91.78
1.15
1.29
1.15
1050.00
3.29
3.31
0.03
21.50
91.85
1.17
1.30
1.16
1075.00
3.34
3.33
0.01
20.87
91.92
1.19
1.31
1.17
1100.00
3.41
3.38
0.03
20.29
92.22
1.21
1.32
1.19
1150.00
3.43
3.34
0.09
19.04
92.80
1.26
1.35
1.23
1175.00
3.48
3.36
0.12
18.46
93.06
1.28
1.36
1.25
1200.00
3.57
3.37
0.20
17.96
93.41
1.31
1.37
1.27
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