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Mini-Circuits
Mini-Circuits ISO 9001 & ISO 14001 Certified
Typical Performance Data
Bi-Directional Coupler Electrical Specifications
Maximum Ratings
Pin Connections
INPUT
1
OUTPUT
6
COUPLED (forward)
10
COUPLED (reverse)
5
GROUND
2,3,4,7,8,9
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 100C
Outline Drawing
Outline Dimensions ( )
inch
mm
BDCA1-10-40
MAINLINE LOSS
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
1600 1900 2200 2500 2800 3100 3400 3700 4000
FREQUENCY (MHz)
MAINLINE
LOSS
(dB)
at RF level of -10 dBm
BDCA1-10-40
COUPLING & DIRECTIVITY
0
10
20
30
40
50
60
70
1600 1900 2200 2500 2800 3100 3400 3700 4000
FREQUENCY (MHz)
C
O
U
P
L
I
N
G
&
DIRECTIVITY(dB)
IN-CPL FWD
IN-CPL REV
BDCA1-10-40+
BDCA1-10-40
RETURN LOSS
15
20
25
30
35
40
45
50
55
60
1600 1900 2200 2500 2800 3100 3400 3700 4000
FREQUENCY (MHz)
R
E
T
U
R
N
L
O
S
S
(
d
B
)
IN
OUT
CPL FWD
CPL REV
electrical schematic
CPL
FORWARD
CPL
REVERSE
IN
OUT
High Power, 50
1600 to 4000 MHz
Bi-Directional Coupler
REV. A
M98898
ED-11305/1
BDCA1-10-40+
LC/TD/CP
060720
Surface Mount
PCB Land Pattern
Suggested Layout,
Tolerance to be within
.002
A
B
C
D
E
F
G
.30
.250
.052
.262
.050
.050
.012
7.62
6.35
1.32
6.66
1.27
1.27
0.30
H
J
K
L
M
wt
.027
.004
.085
.296
.030
grams
0.69
0.10
2.16
7.52
0.76
0.25
Features
four-port
wideband, 1600 to 4000 MHz
excellent VSWR 1.2:1 typ. all ports
good flatness, 0.5
excellent power handling capability
hermetically sealed
minimal variation with temperature
protected by US Patent 7,049,905
Applications
ISM, PCS
mobile satellite
wireless communication
Frequency
(MHz)
Mainline Loss
(dB)
Coupling
(dB)
Directivity
(dB)
Return Loss
(dB)
In-Out
In-Cpl Fwd
Out-Cpl Rev Out-Cpl Fwd
In-Cpl Rev
In
Out
Cpl Fwd
Cpl Rev
CASE STYLE: DZ944
PRICE: $5.95 ea. QTY (10-49)
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix has been added in order to identify RoHS
Compliance. See our web site for RoHS Compliance
methodologies and qualifications.
1600.00
0.73
10.38
10.35
22.15
22.21
30.29
35.96
24.62
25.69
1800.00
0.82
9.83
9.82
21.29
21.91
29.24
37.69
28.63
33.72
2000.00
0.90
9.45
9.44
20.61
21.43
26.20
28.78
29.26
36.30
2200.00
0.97
9.22
9.21
20.25
21.19
23.61
24.59
26.38
28.57
2500.00
1.04
9.06
9.09
20.09
21.66
22.81
22.48
22.34
22.52
2900.00
1.09
9.23
9.17
21.21
25.85
24.12
23.79
21.32
21.84
3200.00
1.08
9.47
9.53
22.68
33.09
29.13
30.80
24.69
24.37
3500.00
1.06
10.01
10.17
24.81
27.65
36.17
32.26
28.32
28.37
3800.00
1.01
10.82
10.91
22.98
20.42
33.18
28.51
33.41
33.47
4000.00
0.97
11.51
11.60
20.98
17.71
31.77
26.97
27.56
32.91
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS
1
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT
2
(W)
f
L
-f
U
Nom.
Max.
Flatness
Typ. Max.
Typ. Min.
Typ.
Max.
1600-4000
1600-1800 10.10.7
0.7
0.8
1.1
21
18
1.1
24
1800-2200
9.50.7
0.8
1.0
1.3
20
17
1.1
20
2200-2900
9.10.5
0.5
1.05
1.4
20
16
1.2
16
2900-3500
9.60.9
1.0
1.15
1.4
22
16
1.2
14
3500-4000 10.81.0
1.5
1.05
1.4
18
11
1.25
12
1. Includes theoretical coupled power loss of 0.46 dB at 10 dB coupling.
2. Derate linearly 1/3 at 100C
Demo Board MCL P/N: TB-115
Suggested PCB Layout (PL-004)
PDF 
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