Typical Performance Data
Directional Coupler Electrical Specifications
Maximum Ratings
Pin Connections
Features
VHF/UHF receivers/transmitters
cellular
INPUT
3
OUTPUT
4
COUPLED
1
GROUND
2
NOT USED*
5,6
very flat coupling
very broadband, multi octave
temperature stable, BLUE CELLTM base
all welded construction
loads attached for better solderability
micro-miniature coupler
protected by U.S. Patent 6,140,887 & 6,784,521
Applications
Operating Temperature
-40C to 85C
Storage Temperature
-55C to 100C
FREQ.
RANGE
(MHz)
COUPLING
(dB)
f
L
-f
U
5-1000
9.00.5
0.5
1.2
2.0
1.2 1.8
1.5 2.0
21
17
18
13
15
--
1.20
0.5
1.0
*pins 5&6 must be isolated
VSWR**
(:1)
Nom.
Max.
Flatness
POWER
INPUT, W
L
Max.
MU
Max.
MAINLINE LOSS*
(dB)
L
Typ. Max.
M
Typ. Max.
U
Typ. Max.
DIRECTIVITY
(dB)
L
Typ. Min.
M
Typ. Min.
U
Typ. Min.
Typ.
* Includes theoretical coupled power loss of 0.58 dB at 9 dB coupling.
** For coupled port VSWR above 500 MHz, 1.6:1 typ.
Frequency
(MHz)
Insertion Loss
(dB)
In-Out
Coupling
(dB)
In-Cpl
Directivity
(dB)
Return Loss
(dB)
In
Cpl
Out
Outline Drawing
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
]
No Leads
CASE STYLE:AT790-1
PRICE: $1.99 ea. QTY (25)
$1.69 ea. QTY (1000)
Leads
CASE STYLE:AT1030
PRICE: $2.14 ea. QTY (25)
$1.84 ea. QTY (1000)
DBTC-9-4
NEW!
DBTC-9-4L
REV. F
M89619
DBTC-9-4 ED-8958/1
DBTC-9-4L ED-8958A/1
WZ/TD/CP
040909
AT1030
A
B
C
D
E
F
G
H
J
K
L
wt.
.166 .150 .155 .050 .037 .025 .012 .060 .184 .030 .004 grams
4.22 3.81 3.94 1.27 0.94 0.64 0.30 1.52 4.67 0.76 0.10
.10
AT790-1 A
B
C
D
E
F
G
H
J
K
wt.
.150 .150 .150 .050 .030 .025 .028 .050 .160 .030
grams
3.81 3.81 3.81 1.27 0.76 0.64 0.71 1.27 4.06 0.76
.10
Outline Dimensions ( )
inch
mm
Demo Board MCL P/N: TB-278
Suggested PCB Layout (PL-150)
Reflow Solder Assembly
Silver-bearing solder (Sn/Pb/Ag 62/36/2%) is recommended;
however, tin-lead eutectic (Sn/Pb 63/37%) may be used.
For temperature profiles, see Application Note AN-40-004
AT790-1
AT1030
AT790-1 & AT1030
DBTC-9-4L
RETURN LOSS
0
5
10
15
20
25
30
35
0
200
400
600
800
1000
FREQUENCY (MHz)
RE
TURN L
O
S
S
(d
B
)
IN
OUT
CPL
DBTC-9-4L
INSERTION LOSS
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
200
400
600
800
1000
FREQUENCY (MHz)
I
N
SER
T
I
ON
LOSS (dB)
at RF level of -10 dBm
DBTC-9-4L
COUPLING & DIRECTIVITY
0
5
10
15
20
25
0
200
400
600
800
1000
FREQUENCY (MHz)
CO
UP
L
I
NG
&
DI
RE
CTI
V
I
T
Y
(d
B
)
COUPLING
DIRECTIVITY
50
5 to 1000 MHz
Directional Couplers
Surface Mount
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
5.00
1.18
8.93
21.62
17.90
24.67
18.40
10.00
1.10
8.89
21.70
19.15
29.04
19.50
50.00
1.07
8.87
21.50
20.07
32.70
20.22
100.00
1.09
8.90
20.99
20.12
31.81
20.27
300.00
1.16
8.93
19.47
20.49
30.43
18.93
500.00
1.20
8.90
17.60
21.02
30.62
16.66
600.00
1.23
8.88
16.50
20.89
30.39
15.36
800.00
1.31
8.86
14.74
20.45
30.31
12.91
900.00
1.37
8.85
14.07
20.06
29.26
11.86
1000.00
1.43
8.86
13.44
19.34
27.16
10.86
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