Directional Coupler
50Ω,
9dB coupling,
-40°C to 85°C
-55°C to 100°C
Surface Mount
top hat
™
DBTC-9-4LX+
5 to 1000 MHz
Features
•
•
•
•
•
•
•
•
very flat coupling
very broadband, multi octave
temperature stable, LTCC base
all welded construction
leads attached for better solderability
micro miniature coupler
aqueous washable
protected by US Patents 6,140,887 & 6,784,521
Maximum Ratings
Operating Temperature
Storage Temperature
Permanent damage may occur if any of these limits are exceeded.
CASE STYLE: AT1642
PRICE: $2.14 ea. QTY (20)
$1.84 ea. QTY (1000)
Pin Connections
INPUT
OUTPUT
COUPLED
GROUND
ISOLATE (DO NOT USE)
3
4
1
2
6
+RoHS Compliant
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
Applications
• VHF/UHF receivers/transmitters
• cellular
FREQ.
RANGE
(MHz)
f
L
-f
U
5-1000
Electrical Specifications
MAINLINE LOSS*
(dB)
L
M
2.0
1.2
1.8
1.5
U
Max.
2.0
Typ.
21
L
Min.
17
Typ.
18
COUPLING
(dB)
Max.
Flatness
±0.5
DIRECTIVITY
(dB)
M
Min.
13
Typ.
15
U
Min.
—
VSWR**
(:1)
Outline Drawing
TOTAL THICKNESS: .013 inch MAX.
POWER
INPUT
(W)
L
MU
Max.
1.0
Max.
0.5
Nom.
9.0±0.5
Typ. Max. Typ. Max. Typ.
1.2
Typ.
1.2
L = low range [f
L
to 10 f
L
]
M = mid range [10 f
L
to f
U
/2]
U = upper range [f
U
/2 to f
U
]
* Includes theoretical coupled power loss of 0.58 dB at 9 dB coupling
** For coupled port VSWR above 500 MHz, 1.6:1 typ.
Typical Performance Data
Frequency
(MHz)
PCB Land Pattern
5.00
10.00
50.00
100.00
300.00
500.00
600.00
800.00
900.00
1000.00
Mainline Loss
(dB)
In-Out
1.18
1.10
1.07
1.09
1.16
1.20
1.23
1.31
1.37
1.43
DBTC-9-4+
MAINLINE LOSS
Coupling
(dB)
In-Cpl
8.93
8.89
8.87
8.90
8.93
8.90
8.88
8.86
8.85
8.86
Directivity
(dB)
21.62
21.70
21.50
20.99
19.47
17.60
16.50
14.74
14.07
13.44
In
17.90
19.15
20.07
20.12
20.49
21.02
20.89
20.45
20.06
19.34
Return Loss
(dB)
Out
24.67
29.04
32.70
31.81
30.43
30.62
30.39
30.31
29.26
27.16
Cpl
18.40
19.50
20.22
20.27
18.93
16.66
15.36
12.91
11.86
10.86
Suggested Layout,
Tolerance to be within
±.002
Outline Dimensions (
inch
)
mm
MAINLINE LOSS (dB)
DBTC-9-4+
COUPLING & DIRECTIVITY
9.5
COUPLING (dB)
9.3
9.1
8.9
8.7
8.5
at RF level of -10 dBm
G
.012
0.30
H
.060
1.52
J
.184
4.67
K
.030
0.76
L
wt
.004 grams
0.10
0.10
1.2
0.8
0.4
0.0
0
200
400
600
800
1000
FREQUENCY (MHz)
DBTC-9-4+
RETURN LOSS
15
10
5
0
1000
COUPLING
0
200
DIRECTIVITY
800
Demo Board MCL P/N: TB-278
Suggested PCB Layout (PL-150)
400
600
FREQUENCY (MHz)
Electrical Schematic
35
RETURN LOSS (dB)
30
25
20
15
10
5
0
at RF level of -10 dBm
IN
0
200
400
OUT
600
CPL
800
1000
FREQUENCY (MHz)
Notes
A.
Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B.
Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C.
The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
www.minicircuits.com
P.O. Box 35166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
Mini-Circuits
®
REV. OR
M134943
ED-8958A/1
DBTC-9-4LX+
DY/RS/CP/AM
111219
DIRECTIVITY (dB)
A
.166
4.22
B
.150
3.81
C
.155
3.94
D
.050
1.27
E
.037
0.94
F
.025
0.64
2.0
1.6
at RF level of -10 dBm
25
20
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