Nort h Am erica: Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe: Tel. +44 (1344) 86 9 595, Fax+44 (134 4) 30 0 020
Specifications subject to change without notice.
Visit ww w. macom.com for ad ditional data shee ts an d pr o d uct inf or m ati o n.
V 4.0
ELDC-14
E-Series 75 Ohm Coupler
5 - 1000 MHz
1
Features
•Coupling 14db Typical
•Surface Mount
•Tape and Reel Packaging available
Description
M/A-COM’s ELDC-14 is a high performance 75 Ohm Coupler,
in an SM-55 low cost, surface mount package. The ELDC-14 is
designed for use in high volume CATV applications. Typical
applications include Set-top Boxes, Network Interface Units,
Cable Amplifiers and Headend equipment.
SM-55 Package
Electrical Specifications @25°C, Z0 = 75 Ohms
Frequency Range 5 - 1000 MHz Units Nominal Typical Minimum Maximum
Mainline Loss 5 - 870 MHz
870 - 1000 MHz dB
dB — 0.8
1.0 — 1.5
1.8
Coupling 5 - 870 MHz
870 - 1000 MHz dB
dB 14.3
14.3 —
— —
— ± 0.5
± 0.7
Coupling Flatness dB — — — 0.8
Directivity 5 - 870 MHz
870 - 1000 MHz dB
dB —
— 25
20 15
13 —
—
Input Return Loss 5 - 870 MHz
870 - 1000 MHz dB
dB —
— 25
23 20
18 —
—
Output Return Loss 5 - 870 MHz
870 - 1000 MHz dB
dB —
— 25
25 20
20 —
—
Coupled Return Loss 5 - 870 MHz
870 - 1000 MHz dB
dB —
— 23
23 18
18 —
—
Please Note that the photograph above indicates package shape only, unit may be wired differently.
S 1371 D
Nort h Am erica: Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe: Tel. +44 (1344) 86 9 595, Fax+44 (134 4) 30 0 020
Specifications subject to change without notice.
Visit ww w. macom.com for ad ditional data shee ts an d pr o d uct inf or m ati o n.
V 4.0
E-Series 75 Ohm Coupler, 5 - 1000 MHz ELDC-14
2
S 1371 D
Directivity
Coupling
Typical Performa nce @ 25°C
Mainline Loss Input Return Loss
Output Return Loss
Coupled Port Return Loss
Operating Characteristics
Function Pin No.
Input 6
Output 1
Coupled 4
External 75 Ohms 3
Ground 5
Not Connected 2
Absolute Maximum Ratings
Parameter Absolute Maximum
RF Power 250 mW
DC Current 30 mA
Pin Temperature (10 sec) 260°C
Operating/Storage Temperature -40°C to +85°C
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
5.0 205.0 405.0 605.0 805.0
Frequency (MHz)
dB
-30.0
-25.0
-20.0
-15.0
-10.0
-5.0
0.0
5.0 205.0 405.0 605.0 805.0
Frequency (MHz)
dB
-35.0
-33.0
-31.0
-29.0
-27.0
-25.0
-23.0
-21.0
5.0 205.0 405.0 605.0 805.0
Frequency (MHz)
dB
-16.0
-15.8
-15.6
-15.4
-15.2
-15.0
-14.8
-14.6
-14.4
-14.2
-14.0
5.0 205.0 405.0 605.0 805.0
Frequency (MHz)
dB
-40.0
-35.0
-30.0
-25.0
-20.0
-15.0
-10.0
-5.0
0.0
5.0 205.0 405.0 605.0 805.0
Frequency (MHz)
dB
-25.0
-24.0
-23.0
-22.0
-21.0
-20.0
-19.0
-18.0
-17.0
-16.0
-15.0
5.0 205.0 405.0 605.0 805.0
Frequency (MHz)
dB
5 200 400 600 800 1000 5 200 400 600 800 1000
5 200 400 600 800 1000 5 200 400 600 800 1000
5 200 400 600 800 1000 5 200 400 600 800 1000
