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GaAs IC SPDT Switch Non-Reflective DC-2.5 GHz AS338-12 Features Low DC Power Consumption High Isolation (40 dB @ 0.9 GHz) Non-Reflective PIN 1 INDICATOR 0.244 (6.20 mm) 0.228 (5.80 mm) SOIC-8 PIN 8 0.050 (1.27 mm) BSC 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 telecommunications applications. PIN 1 0.068 (1.73 mm) MAX. 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 0.197 (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. Electrical Specifications at 25C (0, -5 V) Parameter1 Insertion Loss3 Frequency2 DC-0.5 DC-1.0 DC-2.0 DC-2.5 DC-0.5 DC-1.0 DC-2.0 DC-2.5 GHz GHz GHz GHz GHz GHz GHz GHz 43 36 27 23 Min. Typ. 0.5 0.6 0.7 1.2 46 39 30 26 1.2:1 1.2:1 1.3:1 1.3:1 1.4:1 1.5:1 Max. 0.7 0.8 0.9 1.4 Unit dB dB dB dB dB dB dB dB Isolation VSWR4 DC-0.5 GHz DC-1.0 GHz DC-2.5 GHz Operating Characteristics at 25C (0, -5 V) Parameter Switching Characteristics5 Condition Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru 0.50-2.5 GHz 0.05 GHz For Two-tone Input Power +5 dBm 0.50-2.5 GHz 0.05 GHz Frequency Min. Typ. 8 30 25 +28 +23 +46 +40 Max. Unit ns ns mV dBm dBm dBm dBm Input Power For 1 dB Compression Intermodulation Intercept Point Control Voltages VLow = 0 to 0.2 V @ 20 A Max. VHigh = -5 V @ 50 A to -8 V @ 200 A Max. 1. All measurements made in a 50 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. 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 1 GaAs IC SPDT Switch Non-Reflective DC-2.5 GHz AS338-12 Typical Performance Data (0, -5 V) 2.0 60 50 Insertion Loss (dB) 1.5 Isolation (dB) J1-J3 40 J1-J2 30 1.0 0.5 0 0 0.5 1.0 1.5 2.0 2.5 20 0 1 2 3 4 5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Isolation vs. Frequency 2.00 Absolute Maximum Ratings Characteristic RF Input Power Control Voltage Operating Temperature Value 2 W > 500 MHz 0/-8 V 0.5 W @ 50 MHz 0/-8 V +0.2 V, -8 V -40C to +85C -65C to +150C 25C/W 1.75 VSWR 1.50 1.25 Storage Temperature JC Note: Exceeding these parameters may cause irreversible damage. 1.00 0 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Pin Out VS 10 k V2 CBL CBP J2 VSWR vs. Frequency 1 50 8 Truth Table Negative Operation V1 0 -5 V2 -5 0 J1-J2 Insertion Loss Isolation J1-J3 Isolation Insertion Loss J1 CBL V1 CBP 2 3 4 GND 7 6 5 GND J3 50 CBL Positive Operation1 V1 VHigh 0 V2 0 VHigh J1-J2 Insertion Loss Isolation J1-J3 Isolation Insertion Loss External components shown are for positive voltage operation only. CBL = 100 pF, CBP = 1000 pF for operation >500 MHz. VHigh = +5 to +8 V (VS = VHigh 0.2 V). 1. Refer to Application Notes for further information. 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 |
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