Surface Mount
ADC-26-52+
Directional Coupler
50Ω 10 to 500 MHz
Maximum Ratings
Operating Temperature
Storage Temperature
Features
• wideband, 10-500 MHz
-40°C to 85°C
-55°C to 100°C
CASE STYLE: CD636
PRICE:$7.95 ea. QTY (10-49)
• low insertion loss, 0.2 dB typ.
• high directivity, 21 dB typ.
• aqueous washable
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix has been added in order to identify RoHS
Compliance. See our web site for RoHS Compliance
methodologies and qualifications.
Pin Connections
INPUT
OUTPUT
• protected by U.S Patents 6,133,525 & 6,140,887
1
Applications
• VHF/UHF
• reflective power measurements
• communications
• signal sampling
6
3
2
4
5
COUPLED
GROUND
50Ω TERM EXTERNAL
ISOLATE (DO NOT USE)
Directional Coupler Electrical Specifications
FREQ.
RANGE
(MHz)
COUPLING
(dB)
MAINLINE LOSS1
(dB)
DIRECTIVITY
(dB)
VSWR
(:1)
POWER
INPUT
(W)
Outline Drawing
L
M
U
L
M
U
L
MU
fL-fU
Nom.
Flatness Typ. Max. Typ. Max. Typ. Max. Typ. Min. Typ. Min. Typ. Min.
Typ.
1.1
Max. Max.
10-500
26.0±0.5
±0.9
0.15 0.25
0.2 0.3
0.3 0.5
35 22
25 16
18 11
5
5
L= 10-100 MHz
M= 100-250 MHz
U= 250-500 MHz
1. Mainline loss includes theoretical power loss at coupled port.
Typical Performance Data
Frequency
(MHz)
Mainline Loss
(dB)
Coupling
(dB)
Directivity
(dB)
Return Loss
(dB)
PCB Land Pattern
In-Out
In-Cpl
In
Out
Cpl
10.00
50.00
100.00
150.00
200.00
0.14
0.12
0.12
0.13
0.15
26.49
26.51
26.48
26.41
26.29
33.14
33.50
27.68
24.27
21.96
31.50
35.75
34.14
32.10
30.57
31.90
36.35
34.71
32.76
31.12
31.60
35.18
33.55
31.53
29.61
250.00
300.00
350.00
400.00
500.00
0.16
0.18
0.20
0.22
0.27
26.14
25.97
25.77
25.56
25.14
20.19
18.67
17.46
16.37
14.54
29.15
27.68
26.65
25.73
24.41
29.75
28.08
27.05
25.86
24.06
27.93
26.51
25.29
24.24
22.45
Suggested Layout,
Tolerance to be within .002
inch
Outline Dimensions (
)
mm
ADC-26-52+
MAINLINE LOSS
ADC-26-52+
at RF level of -10 dBm COUPLING & DIRECTIVITY
A
.272
6.91
B
.310
7.87
C
.220
5.59
D
.100
2.54
E
.162
4.11
F
.055
1.40
G
.100
2.54
at RF level of -10 dBm
0.6
50
45
40
35
30
25
20
15
10
COUPLING
DIRECTIVITY
H
.030
0.76
J
.026
0.66
K
.065
1.65
L
.300
7.62
wt
grams
0.25
0.4
0.2
0.0
Demo Board MCL P/N: TB-05
Suggested PCB Layout (PL-095)
0
100
200
300
400
500
0
100
200
300
400
500
FREQUENCY (MHz)
FREQUENCY (MHz)
ADC-26-52+
RETURN LOSS
Electrical Schematic
at RF level of -10 dBm
43
38
33
28
23
18
IN
OUT
CPL
0
100
200
300
400
500
FREQUENCY (MHz)
®
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P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661 For detailed performance specs & shopping online see Mini-Circuits web site
TM
ADC-26-52+
IG/TD/CP/AM
081111
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IF/RF MICROWAVE COMPONENTS