鈥?/div>
very flat coupling
very broadband, multi octave
temperature stable, BLUE CELL鈩?base
all welded construction
loads attached for better solderability
micro-miniature coupler
protected by U.S. Patent 6,140,887 & 6,784,521
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)
Pin Connections
INPUT
OUTPUT
COUPLED
GROUND
NOT USED*
*pins 5&6 must be isolated
3
4
1
2
5,6
Applications
鈥?VHF/UHF receivers/transmitters
鈥?cellular
Outline Drawing
AT790-1
Directional Coupler Electrical Specifications
FREQ.
RANGE
(MHz)
f
L
-f
U
5-1000
COUPLING
(dB)
Max.
Flatness
鹵0.5
MAINLINE LOSS*
(dB)
L
Typ. Max.
1.2
2.0
M
U
Typ. Max. Typ. Max.
1.2 1.8
1.5 2.0
DIRECTIVITY
(dB)
L
Typ. Min.
21
17
M
Typ. Min.
18
13
U
Typ. Min.
15
鈥?/div>
VSWR**
(:1)
POWER
INPUT, W
L
Max.
0.5
MU
Max.
1.0
Nom.
9.0鹵0.5
Typ.
1.20
AT1030
* Includes theoretical coupled power loss of 0.58 dB at 9 dB coupling.
** For coupled port VSWR above 500 MHz, 1.6:1 typ.
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
]
Typical Performance Data
Frequency
(MHz)
5.00
10.00
50.00
100.00
300.00
500.00
600.00
800.00
900.00
1000.00
wt.
grams
.10
1.6
INSERTION LOSS (dB)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
200
400
600
800
1000
FREQUENCY (MHz)
at RF level of -10 dBm
Insertion 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-9-4L
INSERTION 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)
In
21.62
21.70
21.50
20.99
19.47
17.60
16.50
14.74
14.07
13.44
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
AT790-1 & AT1030
Outline Dimensions (
inch
)
mm
AT790-1
A
B
C
D
E
F
G
H
J
K
.150 .150 .150 .050 .030 .025 .028 .050 .160 .030
3.81 3.81 3.81 1.27 0.76 0.64 0.71 1.27 4.06 0.76
AT1030
DBTC-9-4L
COUPLING & DIRECTIVITY
COUPLING & DIRECTIVITY
(dB)
25
20
15
10
5
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
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
Demo Board MCL P/N: TB-278
Suggested PCB Layout (PL-150)
COUPLING
0
0
200
400
DIRECTIVITY
600
800
1000
FREQUENCY (MHz)
DBTC-9-4L
RETURN LOSS
35
RETURN LOSS (dB)
30
25
20
15
10
5
0
0
200
400
600
800
1000
FREQUENCY (MHz)
IN
OUT
CPL
Mini-Circuits
廬
INTERNET
http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
REV. F
M89619
DBTC-9-4 ED-8958/1
DBTC-9-4L ED-8958A/1
WZ/TD/CP
040909
Distribution Centers
NORTH AMERICA 800-654-7949 鈥?417-335-5935 鈥?Fax 417-335-5945 鈥?EUROPE 44-1252-832600 鈥?Fax 44-1252-837010
Mini-Circuits
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Certified
1
