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Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com 1
Specifications subject to change without notice. 3/99A
90 Degree Hybrid 1.85–1.99 GHz
Features
■ Low Cost
■ Low Profile
■ Small SOIC-8 Package
■ Tape & Reel
HY19-12
Description
The HY19-12 is a 90 degree hybrid tuned for the
1.85–1.99 GHz band. The monolithic circuitry is 100%
passive and offers lo w loss, high isolation and e xceptional
phase/amplitude balance. It is available in the SOIC-8
leaded surface mount package.
1. Less 3 dB power split.
1234
RF IN
GND
ISOL.
GND
8765
GND
COUPLED
DIRECT
GND
HY19
Pin Out
DIRECT
COUPLED
IN
ISOLATED
Block Diagram
Parameter Min. Typ. Max. Unit
Frequency 1.85 1.99 GHz
Insertion Loss
1
.5 .6 dB
Isolation 17 20 dB
VSWR All Ports 1.3:1 1.5:1
Amplitude Balance ±.5 ±1.1 dB
Phase Balance ±1.0 ±2.0 Deg.
Electrical Specifications at 25°C
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Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com 2
Specifications subject to change without notice. 3/99A
90 Degree Hybrid 1.85–1.99 GHz HY19-12
Path Losses vs. Frequency
Frequency (GHz)
1.85 1.87 1.89 1.91 1.93 1.971.95 1.99
Loss (dB)
-4.00
-3.80
-3.60
-3.40
-3.20
-3.00
Direct
Coupled
Amplitude Balance vs. Frequency
Frequency (GHz)
Balance (dB)
-1.00
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
1.85 1.87 1.89 1.91 1.93 1.971.95 1.99
Input VSWR vs. Frequency
Frequency (GHz)
VSWR (:1)
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.85 1.87 1.89 1.91 1.93 1.971.95 1.99
Output VSWR vs. Frequency
Frequency (GHz)
VSWR (:1)
1.00
1.05
1.10
1.15
1.20
1.25
1.30
Coupled
Direct
1.85 1.87 1.89 1.91 1.93 1.971.95 1.99
Coupled – Direct Phase vs. Frequency
Frequency (GHz)
Phase (Deg.)
89.00
89.40
89.80
90.20
90.60
91.00
1.85 1.87 1.89 1.91 1.93 1.971.95 1.99
Isolation vs. Frequency
Frequency (GHz)
Isolation (dB)
-45.00
-36.00
-27.00
-18.00
-9.00
0.00
1.85 1.87 1.89 1.91 1.93 1.971.95 1.99
Typical Performance Data
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90 Degree Hybrid 1.85–1.99 GHz HY19-12
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com 3
Specifications subject to change without notice. 3/99A
Characteristic Value
Input Power
1
+4 W
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
Electrostatic Discharge +125 V
Absolute Maximum Ratings
1. Exceeding these parameters may cause irreversible damage.
Recommended Board Layout
0.1630
0.0282
0.0180
TYP.
0.0424
0.0200 DIA.
VIA 12 PLACES
SOIC-8
0.049
(1.24 mm)
0.016
(0.41 mm)
0.016 MAX.
(0.41 mm) x
45˚ CHAMFER
PIN 1
0.197 (5.00 mm)
0.189 (4.80 mm)
0.068
(1.73 mm) MAX.
0.010 (0.25 mm)
0.004 (0.10 mm)
0.010 (0.25 mm)
0.007 (0.17 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
8˚
MAX.
0.020 (0.51 mm) MAX.
0.244 (6.20 mm)
0.228 (5.80 mm)
0.050 (1.27 mm) BSC
PIN 8
PIN 1
INDICATOR
Materials 10 mil FR-4.
Dimensions are in inches.
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