
Directional Coupler Electrical Specifications
Features
very flat coupling
very broadband, multi octave
temperature stable, BLUE CELL base
all welded construction
leads attached for better solderability
micro-miniature coupler
protected by U.S. Patent 6,140,887 & 6,784,521
Applications
cellular
PCS
DECT/PHS
GSM
FREQ.
RANGE
(MHz)
COUPLING
(dB)
f
L
-f
U
50-1000
1000-1500
1500-2000
* Includes theoretical coupled power loss of 0.07 dB at 17 dB coupling.
**For coupled port VSWR above 500 MHz, 1.6:1 typ.
17.0±0.7
17.7±0.9
18.0±1.0
±0.9
±1.0
±0.8
0.9
1.0
1.1
1.4
1.5
1.6
20
20
14
13
10
—
1.20
1.20
1.20
—
—
—
2.0
2.0
2.0
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.
Typical Performance Data
BLUE CELL
is protected by U.S. Patents.
Frequency
(MHz)
Insertion Loss
(dB)
In-Out
0.64
0.66
0.76
0.85
0.91
0.99
1.05
1.08
1.18
1.21
Coupling
(dB)
In-Cpl
16.41
16.42
16.74
17.06
17.30
17.63
17.81
17.88
18.07
18.11
Directivity
(dB)
Return Loss
(dB)
Out
27.62
27.75
23.13
21.80
21.94
22.71
24.12
24.48
25.71
25.97
In
Cpl
18.46
18.62
18.78
18.22
17.08
14.85
13.40
12.71
10.95
10.50
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
]
DBTC-17-5L
COUPLING & DIRECTIVITY
0
5
10
15
20
25
0
200
400
600
800
FREQUENCY (MHz)
1000 1200 1400 1600 1800 2000
C
COUPLING
DIRECTIVITY
DBTC-17-5L
RETURN LOSS
0
5
10
15
20
25
30
0
200
400
600
800
FREQUENCY (MHz)
1000
1200
1400
1600
1800
2000
R
IN
OUT
COUPLING
at RF level of -10 dBm
DBTC-17-5L
INSERTION LOSS
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
0
200
400
600
800
FREQUENCY (MHz)
1000
1200
1400
1600
1800
2000
I
at RF level of -10 dBm
Maximum Ratings
Operating Temperature
Storage Temperature
Pin Connections
INPUT
OUTPUT
COUPLED
GROUND
NOT USED*
*pins 5&6 must be isolated
3
4
1
2
5,6
-40
°
C to 85
°
C
-55
°
C to 100
°
C
Outline Drawing
AT790-1
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
3.81 3.81 3.81 1.27 0.76 0.64 0.71 1.27 4.06 0.76
grams
.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
AT1030
AT790-1 & AT1030
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-17-5
NEW!
DBTC-17-5L
50
50 to 2000 MHz
Directional Couplers
Surface Mount
INTERNET
http://www.minicircuits.com
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Distribution Centers
NORTH AMERICA 800-654-7949 417-335-5935 Fax 417-335-5945 E
UROPE 44-1252-832600
Fax 44-1252-837010
Mini-Circuits
ISO 9001 & ISO 14001
Certified
Mini-Circuits
50.00
100.00
500.00
800.00
1000.00
1300.00
1500.00
1600.00
1900.00
2000.00
15.92
16.17
18.53
22.42
22.32
17.74
15.41
14.43
12.20
11.55
23.43
23.56
22.36
21.45
21.67
22.81
24.84
25.91
28.04
28.07
REV. F
ED-8784A/1