Four-Way 0° Power Splitter Combiner 1.71–1.99 GHz PD4W18-12 Features ■ Low Cost ■ Low Profile ■ Available in Small SOIC-8 Package ■ Tape & Reel Description The PD4W18-12 is a monolithic four-way in-phase hybrid junction tuned for the 1.71–1.99 GHz band. It offers low loss, high isolation, good input/output matching and exceptional phase/amplitude balance. It is available in the SOIC-8 leaded surface mount package. Electrical Specifications at 25°C Parameter Min. Frequency Typ. 1.71 Insertion Loss Less 6 dB Split 0.7 Isolation 18 Max. Unit 1.99 GHz 1.0 25 dB dB Input VSWR 1.6:1 1.8:1 Output VSWR 1.2:1 1.5:1 Amplitude Balance ±.3 ±.4 dB Phase Balance ±5.0 ±9.0 Deg. Pin Out Block Diagram GND 5 4 GND 6 3 Port 4 Port 2 7 2 GND 8 1 IN/SUM 4W18 Port 1 Port 3 Port 1 Port 2 IN/SUM Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A Port 3 Port 4 1 Four-Way 0° Power Splitter Combiner 1.71–1.99 GHz PD4W18-12 Typical Performance Data 1.5 -6.60 Port 4 Port 2 Port 1 Port 3 -7.00 -7.20 1.4 Output VSWR (:1) Insertion Loss (dB) -6.40 1.3 1.1 1.0 -7.40 1.71 1.75 1.79 1.83 1.87 1.91 1.95 1.99 1.71 1.87 1.91 1.95 Insertion Loss vs. Frequency Output VSWR vs. Frequency 1.99 1.00 -15 Port 1–4 Port 1–2 Port 2–3 Port 2–4 Port 3–4 Port 1–3 -20 -25 -30 -35 -40 1.71 1.75 1.79 1.83 1.87 1.91 1.95 1.99 Amplitude Balance (dB) -10 Isolation (dB) 1.83 Frequency (GHz) 0 0.50 Port 2–3 Port 1–3 Port 1–2 Port 2–4 Port 1–4 Port 3–4 0.00 -0.50 -1.00 1.71 1.75 1.79 1.83 1.87 1.91 1.95 1.99 Frequency (GHz) Frequency (GHz) Isolation vs. Frequency Amplitude Balance vs. Frequency 1.6 10 1.5 8 6 Phase Balance (Deg.) Input VSWR (:1) 1.75 1.79 Frequency (GHz) -5 1.4 1.3 1.2 1.1 Port 2–3 Port 1–3 Port 2–4 Port 1–4 Port 1–2 Port 3–4 4 2 0 -2 -4 -6 -8 -10 1.0 1.71 1.75 1.79 2 Port 1 Port 2 Port 3 Port 4 1.2 1.83 1.87 1.91 1.95 1.99 1.71 1.75 1.79 1.83 1.87 1.91 1.95 1.99 Frequency (GHz) Frequency (GHz) Input VSWR vs. Frequency Phase Balance vs. Frequency Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A Four-Way 0° Power Splitter Combiner 1.71–1.99 GHz Absolute Maximum Ratings Characteristic PD4W18-12 SOIC-8 PIN 8 Value Input Power1 0.050 (1.27 mm) BSC +1.5 W CW Input Power2 +0.375 CW Operating Temperature -40°C to +85°C Storage Temperature -60°C to +150°C 1. When used as a power divider with a 2.0:1 Max. VSWR on all ports. 2. When used as a power combiner with 2.0:1 Max. VSWR on all ports. PIN 1 0.068 (1.73 mm) MAX. Board Layout ,,,,, ,,,,, ,,, ,,, ,,, ,,, ,,,,, ,,, ,,,,, 0.018 TYP. ,,,, ,,,, ,,, ,,, ,,, ,,,, ,,,, ,,,, ,,,, 0.020 (0.51 mm) MAX. 0.049 (1.24 mm) 0.016 (0.41 mm) 0.016 MAX. (0.41 mm) x 45˚ CHAMFER 0.170 4W18 0.028 TYP. 0.244 (6.20 mm) 0.228 (5.80 mm) PIN 1 INDICATOR 0.039 TYP. 0.021 TYP. 0.197 (5.00 mm) 0.189 (4.80 mm) 0.010 (0.25 mm) 0.004 (0.10 mm) 0.158 (4.00 mm) 0.150 (3.80 mm) 0.010 (0.25 mm) 0.007 (0.17 mm) 8˚ MAX. 0.020 DIA. VIA 2 PLACES Material is 10 mil FR4 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A 3