AS338-12 SKYWORKS | Alldatasheet

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Technical content

Features

■ Low DC Power Consumption ■ High Isolation (40 dB @ 0.9 GHz) ■ Non-Reflective AS338-12

Description

The AS338-12 is a low cost IC FET SPDT non-reflective switch in a plastic SOIC-8 package for commercial applications. The switch operates with -5, 0 V or 0, +5 V when “floated” as shown on the following page. This general purpose SPDT switch is used in various tele- communications applications. Parameter1 Frequency2 Min. Typ. Max. Unit Insertion Loss3 DC–0.5 GHz 0.5 0.7 dB DC–1.0 GHz 0.6 0.8 dB DC–2.0 GHz 0.7 0.9 dB DC–2.5 GHz 1.2 1.4 dB Isolation DC–0.5 GHz 43 46 dB DC–1.0 GHz 36 39 dB DC–2.0 GHz 27 30 dB DC–2.5 GHz 23 26 dB VSWR4 DC–0.5 GHz 1.2:1 1.3:1 Electrical Specifications at 25°C (0, -5 V) 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) MAX. 0.020 (0.51 mm) MAX. 0.244 (6.20 mm) 0.228 (5.80 mm) 0.050 (1.27 mm) BSCPIN 8 PIN 1 INDICATOR Operating Characteristics at 25°C (0, -5 V) 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. DC = 300 kHz. 3. Insertion loss changes by 0.003 dB/°C. 4. Input/output. 5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. SOIC-8

GaAs IC SPDT Switch Non-Reflective DC–2.5 GHz AS338-12 2 Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email sales@skyworksinc.com • www.skyworksinc.com Specifications subject to change without notice. 10/99A 2.5 2.0 2.0 1.5 1.5 1.0 1.0 0.5 0.5 Frequency (GHz) Insertion Loss vs. Frequency Insertion Loss (dB) 2.00 2.0 2.5 1.75 1.50 1.5 1.25 1.00 1.00.50 Frequency (GHz) VSWR vs. Frequency VSWR Frequency (GHz) Isolation vs. Frequency 01 23 4 5 J1–J3 J1–J2 Isolation (dB) Typical Performance Data (0, -5 V) 1234 8765 VS 10 kΩ GND J3CBL

50 CBP

RF Input Power 2 W > 500 MHz 0/-8 V

0.5 W @ 50 MHz 0/-8 V

Control Voltage +0.2 V, -8 V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C Θ JC 25°C/W Absolute Maximum Ratings Note: Exceeding these parameters may cause irreversible damage. Pin Out V1 V2 J1–J2 J1–J3 0 -5 Insertion Loss Isolation -5 0 Isolation Insertion Loss Truth Table Negative Operation Positive Operation1 V1 V2 J1–J2 J1–J3 VHigh 0 Insertion Loss Isolation 0V High Isolation Insertion Loss VHigh = +5 to +8 V (VS = VHigh ± 0.2 V). 1. Refer to Application Notes for further information. External components shown are for positive voltage operation only. CBL = 100 pF , CBP = 1000 pF for operation >500 MHz.