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| PHEMT GaAs IC SPDT Switch DC-3 GHz AS179-92 Features s P1 dB +30 dBm Typical @ +3 V s IP3 43 dBm Typical @ +3 V s Low Insertion Loss (0.3 dB @ 0.9 GHz) s Low DC Power Consumption s Ultra Miniature SC-70 6 Lead Package s PHEMT Process SC-70 6 Lead 0.079 (2.00 mm) 0.008 (0.20 mm) 0.0256 (0.65 mm) BSC 0.049 (1.25 mm) 0.004 (0.10 mm) 0.087 (2.20 mm) 0.008 (0.20 mm) PIN 1 INDICATOR 0.035 (0.90 mm) 0.004 (0.10 mm) 0.0055 (0.14 mm) 0.0015 (0.04 mm) 0.002 (0.005 mm) 0.002 (0.005 mm) 0.037 (0.95 mm) 0.006 (0.15 mm) 0.009 (0.23 mm) REF 0.010 (0.25 mm) 0.006 (0.15 mm) Description The AS179-92 is an IC FET SPDT switch in a low cost miniature SC-70 6 lead plastic package. The AS179-92 features low insertion loss and positive voltage operation with very low DC power consumption. This general purpose switch can be used in a variety of telecommunications applications. 0.008 (0.20 mm) 0.004 (0.10 mm) Electrical Specifications at 25C (0, +3 V) Parameter1 Insertion Isolation Loss3 Frequency2 DC-1.0 GHz DC-3.0 GHz DC-1.0 GHz DC-2.0 GHz DC-3.0 GHz DC-1.0 GHz DC-2.0 GHz DC-3.0 GHz 22 22 20 Min. Typ. 0.3 0.4 25 25 23 1.2:1 1.2:1 1.3:1 1.4:1 1.4:1 1.4:1 Max. 0.4 0.6 Unit dB dB dB dB dB VSWR4 Operating Characteristics at 25C (0, +3 V) Parameter Switching Characteristics5 Condition Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru 0/+3 V 0/+5 V For Two-tone Input Power +5 dBm 0/+3 V 0/+5 V 0.5-3.0 GHz 0.5-3.0 GHz 0.5-3.0 GHz 0.5-3.0 GHz Frequency Min. Typ. 10 20 25 +30 +34 +43 +50 Max. Unit ns ns mV dBm dBm dBm dBm Input Power for 1 dB Compression Intermodulation Intercept Point (IP3) Control Voltages VLow = 0 to 0.2 V @ 20 A Max. VHigh = +3 V @ 100 A Max. to +5 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. Insertion loss state. 5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 8/00A 1 PHEMT GaAs IC SPDT Switch DC-3 GHz AS179-92 Typical Performance Data (0, +3 V) 1.0 50 45 Insertion Loss (dB) 0.8 Isolation (dB) 40 35 30 25 20 15 0.6 0.4 0.2 0.0 0.0 10 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency 1.4 Isolation vs. Frequency Absolute Maximum Ratings Characteristic Value 6 W > 500 MHz 0/+7 V Control -0.2 V, +8 V -40C to +85C -65C to +150C 25C/W RF Input Power Control Voltage Operating Temperature Storage Temperature 1.3 VSWR 1.2 1.1 JC 1.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Pin Out J3 CBL V2 J1 Frequency (GHz) VSWR vs. Frequency 1 2 GND 6 5 Truth Table V1 VHigh 0 VHigh = +3 to +5 V. CBL V1 V2 0 VHigh J1-J2 Isolation Insertion Loss J1-J3 Insertion Loss Isolation J2 3 4 CBL DC blocking capacitors (CBL) must be supplied externally for positive voltage operation. CBL = 100 pF for operation >500 MHz. 2 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 8/00A |
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