Surface Mount
Bi-Directional Coupler
BDCA-7-25
High Power, 50Ω
1200 to 2500 MHz
Maximum Ratings
Operating Temperature
Features
• four-portcoupler
-55°C to 100°C
-55°C to 100°C
• wideband,1200-2500MHz
• excellent VSWR, 1.05:1 typ., all ports
• good flatness, ±0.3 dB typ.
Storage Temperature
• excellent power handling capability, 35W (2100 MHz)
• hermeticallysealed
• minimalvariationwithtemperature
• low profile, 0.052" height
CASE STYLE: DZ944
PRICE: $5.95 ea. QTY (10-49)
Pin Connections
INPUT
1
OUTPUT
6
COUPLED (forward)
COUPLED (reverse)
GROUND
10
5
Applications
• PCS, PCN, UMTS
• ISM
2,3,4,7,8,9
• GPS
• defense
Outline Drawing
Bi-Directional Electrical Specifications
FREQ.
RANGE
(MHz)
COUPLING
(dB)
MAINLINE LOSS*
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT**
(W)
Max.
Nom. Flatness
fL-fU
Typ.
Typ. Max.
Typ. Min.
Max.
1200-2500
1200-1700 7.1±0.8
1700-2100 6.5±0.5
2100-2500 7.0±0.8
±0.8
±0.3
±1.0
1.5 1.9
1.6 2.0
1.5 2.0
22 19
22 14
22 12
1.08
1.05
1.10
35
35
27
*
Includes theoretical coupled power loss of 1.0 dB at 7 dB coupling.
** Derate linearly to 1/3 at 100°C
Typical Performance Data
Frequency
(MHz)
Insertion Loss
Coupling
(dB)
In-CPL Out-Term
Directivity
(dB)
Out-CPL In-Term
Return Loss
(dB)
Out
(dB)
In-Out
In
CPL
Term
1200.00
1250.00
1300.00
1500.00
1700.00
1860.00
2100.00
2260.00
2420.00
2500.00
1.20
1.25
1.30
1.47
1.59
1.66
1.70
1.69
1.64
1.60
7.44
7.25
7.10
6.62
6.36
6.30
6.39
6.57
6.84
7.01
7.44
7.26
7.09
6.62
6.37
6.30
6.38
6.56
6.84
7.00
28.71
28.83
28.92
26.70
23.78
21.94
19.67
18.53
17.58
17.10
30.67
32.19
33.55
32.36
26.87
23.76
20.71
19.15
17.85
17.32
33.76
34.26
34.75
29.75
25.23
23.19
21.34
20.76
20.67
20.88
38.52
41.86
58.50
32.95
26.63
23.89
21.69
21.18
21.04
21.37
34.05
36.87
42.17
35.05
27.37
24.17
21.28
20.21
19.83
19.63
31.62
33.16
34.02
30.66
25.76
23.22
20.95
20.12
19.80
19.70
inch
Outline Dimensions (
)
mm
A
.30
B
.250
6.35
C
.052
1.32
D
.274
6.96
E
.050
1.27
F
.050
1.27
G
.012
0.30
7.62
BDCA-7-25
BDCA-7-25
INSERTION LOSS
H
.057
1.45
J
.004
0.10
K
.085
2.16
L
.296
7.52
M
.030
0.76
wt
grams
0.25
COUPLING & DIRECTIVITY
COUPLING
at RF level of -10 dBm
at RF level of -10 dBm
40
35
30
25
20
15
10
5
1.8
1.6
1.4
1.2
1.0
DIRECTIVITY
Demo Board MCL P/N: TB-115
Suggested PCB Layout (PL-004)
0
1200
1400
1600
1800
2000
2200
2400
2600
1200 1400 1600 1800 2000 2200 2400 2600
FREQUENCY (MHz)
FREQUENCY (MHz)
BDCA-7-25
Bi-DirectionalCoupler
Schematic
RETURN LOSS
at RF level of -10 dBm
70
60
50
40
30
20
10
0
OUT
IN
CPL
CPL
FORWARD
REVERSE
IN
OUT
CPL
TERM
2400
1200
1400
1600
1800
2000
2200
2600
FREQUENCY (MHz)
®
INTERNET http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
REV. A
M92913
ED-10880A/1
BDCA-7-25
LC/TD/CP/AM
040609
Mini-Circuits
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