鈥?/div>
very flat coupling
very broadband, multi octave
temperature stable, BLUE CELL鈩?base
all welded construction
leads attached for better solderibility
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0.9
MAINLINE LOSS*
(dB)
L
Typ. Max.
0.9
1.8
M
U
Typ. Max. Typ. Max.
0.7 1.3
1.1 1.6
DIRECTIVITY
(dB)
L
Typ. Min.
33
22
M
Typ. Min.
21
14
U
Typ. Min.
15
鈥?/div>
VSWR**
(:1)
POWER
INPUT, W
L
Max.
0.5
MU
Max.
1.0
Nom.
12.2鹵0.5
Typ.
1.20
AT1030
* Includes theoretical coupled power loss of 0.27 dB at 12 dB coupling.
**For coupled port VSWR above 500 MHz, 1.5:1 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
500.00
600.00
800.00
900.00
1000.00
wt.
grams
.10
DBTC-12-4L
INSERTION LOSS
COUPLING & DIRECTIVITY (dB)
DBTC-12-4L
COUPLING & DIRECTIVITY
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
COUPLING
DIRECTIVITY
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
Insertion Loss
(dB)
In-Out
0.88
0.79
0.73
0.75
0.85
0.88
0.95
1.00
1.06
Coupling
(dB)
In-Cpl
12.07
11.96
11.90
11.93
11.99
11.99
12.03
12.07
12.13
Directivity
(dB)
34.34
34.86
35.53
37.41
25.82
22.32
17.75
16.15
14.74
In
19.19
21.25
22.99
22.94
22.00
21.56
20.94
20.79
20.48
Return Loss
(dB)
Out
23.31
27.96
35.09
34.58
26.19
25.58
25.46
26.14
26.70
Cpl
17.81
19.68
21.01
21.11
18.96
17.94
15.62
14.55
13.43
BLUE CELL鈩?/div>
is protected by U.S. Patents.
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
INSERTION LOSS (dB)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
at RF level of -10 dBm
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)
200
400
600
800
1000
0
200
400
600
800
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
DBTC-12-4L
RETURN LOSS
40.0
35.0
RETURN LOSS (dB)
30.0
25.0
20.0
15.0
10.0
5.0
0.0
0
200
400
600
800
1000
FREQUENCY (MHz)
IN
OUT
CPL
at RF level of -10 dBm
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-12-4 ED-8954/1
DBTC-12-4L ED-8954A
WZ/TD/CP
040225
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
ISO 9001 & ISO 14001
Certified
1
