Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
1
Specifications subject to change without notice. 3/99A
Directional Coupler
Features
s
Low Cost
s
Low Profile
s
Small SOT-6 Package
s
Tape & Reel
DC16-73
Description
The DC16-73 is a monolithic directional coupler for low
cost wireless applications. It offers low loss, good isolation,
good input/output matching and exceptional coupling
repeatability. Performance is specified for two different
bands. It is available in the SOT-6 leaded surface mount
package.
Parameter
Min.
Typ.
Max.
Unit
Min.
Typ.
Max.
Unit
Frequency
1.42
1.66
GHz
1.71
1.99
GHz
Insertion Loss
1
.25
.35
dB
.35
.45
dB
Isolation
23
24
dB
22
23
dB
Input VSWR
1.1:1
1.3:1
1.1:1
1.3:1
Output VSWR
1.1:1
1.3:1
1.1:1
1.3:1
Coupling
14.6
15.6
16.6
dB
13.8
14.8
15.8
dB
Coupled Port VSWR
1.1:1
1.3:1
1.1:1
1.3:1
Electrical Specifications at 25C
12
3
65
4
GND
GND
COUPLED
OUT
GND
RF IN
DC16
Pin Out
1
2
3
6
5
4
Block Diagram
1. Coupling loss included.
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
2
Specifications subject to change without notice. 3/99A
Directional Coupler
DC16-73
Frequency (GHz)
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
I
n
s
e
r
t
i
o
n
L
o
s
s
(
d
B
)
Insertion Loss vs. Frequency
Frequency (GHz)
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
-40.0
-30.0
-20.0
-10.0
0.0
I
s
o
l
a
t
i
o
n
(
d
B
)
Isolation vs. Frequency
Frequency (GHz)
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
1.0
1.1
1.2
1.3
1.4
1.5
O
u
t
p
u
t
V
S
W
R
Output VSWR vs. Frequency
Frequency (GHz)
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
1.0
1.1
1.2
1.3
1.4
1.5
C
o
u
p
l
e
d
P
o
r
t
V
S
W
R
Coupled Port VSWR vs. Frequency
Frequency (GHz)
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
1.0
1.1
1.2
1.3
1.4
1.5
I
n
p
u
t
V
S
W
R
Input VSWR vs. Frequency
Frequency (GHz)
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
-30.0
-25.0
-20.0
-15.0
-10.0
-5.0
C
o
u
p
l
i
n
g
(
d
B
)
Coupling vs. Frequency
Typical Performance Data
Directional Coupler
DC16-73
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
3
Specifications subject to change without notice. 3/99A
Characteristic
Value
Input Power
+4 W
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
Electrostatic Discharge
+125 V
Absolute Maximum Ratings
Note: Exceeding these parameters may cause irreversible damage.
Recommended Board Layout
0.075
0.020
0.018 TYP.
0.015
0.039 TYP.
0.0200 DIA.
VIA 3 PLACES
SOT-6
0.074
(1.90 mm REF.)
0.071 (1.80 mm)
0.052 (1.30 mm)
0.037 (0.95 mm) REF.
0.122 (3.10 mm)
0.106 (2.70 mm)
0.006
(0.15 mm)
0.000
(0.00 mm)
0.057 (1.45 mm)
0.035 (0.90 mm)
0.020 (0.51 mm)
0.014 (0.350 mm)
0.126 (3.20 mm)
0.087 (2.20 mm)
PIN 6
PIN 1
PIN 1
INDICATOR
0.022 (0.61 mm)
0.004 (0.10 mm)
0.014
(0.26 mm)
0.004
(0.10 mm)
0.012
(0.30 mm)
TYP.
5.0 1
5.0 1
Material is 10 mil FR4.
PDF 
ZIP