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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
Typical Performance Data
Electrical Specifi cations
Maximum Ratings
Pin Connections
Features
very fl at coupling, 0.2 dB typ.
temperature stable, LTCC base
all welded construction
protected by US Patents, 6,140,887 & 6,784,521
INPUT 3
OUTPUT 4
COUPLED 1
GROUND 2
ISOLATE (DO NOT USE)
6
Applications
CATV
wire-line broadband access
Operating Temperature
-40C to 85C
Storage Temperature
-55C to 100C
Frequency
(MHz)
Mainline Loss
(dB)
In-Out
Coupling
(dB)
In-Cpl
Directivity
(dB)
Return Loss
(dB)
In
Cpl
Out
DBTC-12-4-75L+
MAINLINE LOSS
0.8
1
1.2
1.4
1.6
0
200
400
600
800
1000
1200
FREQUENCY (MHz)
M
A
I
N
LI
NE LO
SS (
d
B)
at RF level of -5 dBm
DBTC-12-4-75L+
COUPLING & DIRECTIVITY
5
10
15
20
25
0
200
400
600
800
1000
1200
FREQUENCY (MHz)
CO
UPLI
NG
& DI
RECTI
V
I
T
Y
(dB)
COUPLING
DIRECTIVITY
at RF level of -5 dBm
DBTC-12-4-75L+
RETURN LOSS
5
10
15
20
25
30
0
200
400
600
800
1000
1200
FREQUENCY (MHz)
RETURN LOSS (
d
B)
IN
OUT
CPL
at RF level of -5 dBm
electrical schematic
INPUT
OUTPUT
COUPLED
75
, 12dB Coupling,
5 to 1200 MHz
Directional Couplers
REV. OR
M105872
ED-12343A/1
DBTC-12-4-75
DY/RS/CP/AM
060620
Surface Mount
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS
1
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT
(W)
Nom.
Max.
Flatness
Typ.
Max.
Typ.
Min.
Typ.
Max.
5-1200
120.5
0.6
5-50
1.1
1.8
19
17
1.3
0.5
50-500
1.1
1.4
18
15
1.3
1.0
500-1000
1.2
1.6
17
10
1.3
1.0
1000-1200
1.3
1.9
13
8
1.3
1.0
Demo Board MCL P/N: TB-279
Suggested PCB Layout (PL-151)
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-12-4-75+ DBTC-12-4-75L+
Outline Drawing / Dimensions ( )
inch
mm
AT1030 (DBTC-12-4-75L)
AT790-1 (DBTC-12-4-75)
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffi x has been added in order to identify RoHS
Compliance. See our web site for RoHS Compliance
methodologies and qualifi cations.
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
0.10
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
0.10
PCB Land Pattern
Suggested Layout,
Tolerance to be within
.002
PCB Land Pattern
Suggested Layout,
Tolerance to be within
.002
5.00 1.11 11.92 19.03 18.05
22.21
20.18
50.00 1.04 11.93 19.50 19.49
26.11
21.12
180.00 1.04 11.98 18.67 19.58
26.61
18.80
340.00 1.01 11.99 18.30 20.15
23.62
15.48
500.00 1.05 12.00 16.68 20.32
21.63
12.88
700.00 1.18 12.15 15.13 18.84
19.39
10.88
870.00 1.28 12.24 13.39 19.80
18.65
9.82
1000.00 1.26 12.29 12.40 21.00
18.94
9.27
1100.00 1.32 12.34 11.84 22.53
19.49
8.90
1200.00 1.38 12.41 11.54 24.40
20.24
8.59
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