Surface Mount
Bi-Directional Coupler
BDCA-10-25
High Power, 50Ω
800 to 2500 MHz
Maximum Ratings
OperatingTemperature
Features
• four-port coupler
-55°C to 100°C
-55°C to 100°C
• wideband, 800-2500 MHz
• excellent VSWR, 1.15:1 typ., all ports
• good flatness, ±0.6 dB typ.
StorageTemperature
CASE STYLE: SM1L
PRICE: $5.95 ea. QTY (10-49)
• excellent power handling capability, 50W (800-1000 MHz)
• hermetically sealed
Pin Connections
INPUT
• minimal variation with temperature
• low profile, 0.07" height
1
OUTPUT
6
Applications
COUPLED (forward)
COUPLED (reverse)
GROUND
10
5
• cellular, PCS, PCN, UMTS
• ISM
• GPS
2,3,4,7,8,9
Bi-Directional Electrical Specifications
Outline Drawing
MODEL
NO.
FREQ.
RANGE
(MHz)
COUPLING
(dB)
MAINLINE LOSS*
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT**
(W)
Max.
fL-fU
Nom.
Flatness
Typ. Max.
Typ. Min.
Typ.
Max.
BDCA-10-25
800-2500
800-1000
1700-2000
1000-2500
10.1±2.0
11.0±0.8
8.5±0.5
9.4±1.2
±2.0
±1.2
±0.6
±1.5
1.0
0.6
1.1
1.0
1.5
1.0
1.5
1.5
25
32
23
22
11
20
16
11
1.05
1.05
1.05
1.05
24
50
34
24
*
Includes theoretical coupled power loss of 0.46 dB at 10 dB coupling.
** Derate linearly to 1/3 at 100°C
Typical Performance Data
Frequency
(MHz)
InsertionLoss
Coupling
(dB)
In-CPL Out-Term
Directivity
(dB)
Out-CPL In-Term
Return Loss
(dB)
(dB)
In-Out
In
Out
CPL
Term
800.00
900.00
1000.00
1100.00
1300.00
0.51
0.55
0.64
0.72
0.86
11.74
11.01
10.39
9.85
11.94
11.20
10.56
10.07
9.49
33.32
35.71
38.83
39.71
34.58
37.31
39.79
37.62
34.05
29.81
31.70
30.99
29.41
27.94
25.76
31.27
29.85
28.87
27.76
26.33
36.30
37.54
38.07
38.46
37.29
28.13
25.34
27.99
32.68
34.65
9.06
1500.00
1700.00
2000.00
2200.00
2500.00
0.93
1.02
1.04
1.02
0.98
8.63
8.39
8.47
8.82
9.86
8.86
8.67
8.73
9.02
9.92
30.88
29.45
30.20
29.36
21.31
25.68
23.91
22.76
22.31
20.10
24.58
24.82
27.40
26.92
20.89
25.59
25.69
26.41
25.20
20.70
36.88
38.65
36.15
27.33
21.30
31.32
34.99
37.39
27.99
21.10
inch
Outline Dimensions (
)
mm
A
.250
6.35
B
.300
7.62
C
.070
1.78
D
.320
8.12
E
.050
1.27
F
.015
.38
G
.050
1.27
H
J
.030
.76
.075
1.91
BDCA-10-25
INSERTION LOSS
BDCA-10-25
COUPLING & DIRECTIVITY
at RF level of -10 dBm
at RF level of -10 dBm
K
.095
2.41
L
.330
8.38
M
.100
2.54
N
.020
.51
P
.015
.38
Q
.070
1.78
R
.014
.36
wt.
grams
.3
1.20
1.00
0.80
0.60
0.40
42
COUPLING
DIRECTIVITY
38
34
30
26
22
18
14
10
6
Demo Board MCL P/N: TB-115
Suggested PCB Layout (PL-004)
750
1000
1250
1500
1750
2000
2250
2500
750
1000
1250
1500
1750
2000
2250
2500
FREQUENCY (MHz)
FREQUENCY (MHz)
BDCA-10-25
RETURN LOSS
at RF level of -10 dBm
50
40
30
20
10
0
Bi-Directional Coupler
Schematic
OUT
IN
CPL
CPL
IN
OUT
CPL
TERM
FORWARD
REVERSE
750
1000
1250
1500
1750
2000
2250
2500
FREQUENCY (MHz)
®
INTERNET http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
REV. C
M88753
ED-8914/2
BDCA-10-25
LC/TD/CP
030905
Mini-Circuits
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