PHEMT GaAs IC SPDT Switch DC-2.5 GHz L t Alpha Features P; gg +30 dBm Typical @ +3 V IP3 43 dBm Typical @ +3 V Low Insertion Loss (0.3 dB @ 0.9 GHz) Low DG Power Consumption Ultra Miniature SC-70 6 Lead Package PHEMT Process Description The AS179-92 is an IC FET SPDT switch in a low cost miniature SC-70 6 lead plastic package. The AS1 79-92 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. Electrical Specifications at 25C (0, +3 V) SC-70 6 Lead 0.079 (2.00 mm) + 0.008 (0.20 mm) + TOO AS179-92 >| [+1 0.0256 (0.65 mm) BSC 0.087 (2.20 mm) + 0.008 (0.20 mm) 0.049 (1.25 mm) + 0.004 (0.10 mm) PIN 1 INDICATOR = fr. 0.035 (0.90 mm) + 0.004 (0.10 mm) t t ; +t 0.002 (0.005 mm)-t + 0.002 (0.005 mm) 9.037 (0.95 mm) + 0.006 (0.15 mm) TOU | |< 0.009 (0.23 mm) REF 0.010 (0.25 mm) J. 0.006 (0.15 mm) 0.0055 (0.14 mm) + 0.0015 it (0.04 mm) 4 | | 0.008 (0.20 mm) + 0.004 (0.10 mm) Parameter! Frequency? Min. Typ. Max. Unit Insertion Loss? DC-1.0 GHz 0.3 0.4 dB DC-2.5 GHz 0.4 0.5 dB Isolation DC1.0 GHz 22 25 dB DC2.0 GHz 22 25 dB DC-2.5 GHz 21 23 dB VSWR* DC1.0 GHz 1.2:1 1.44 DC2.0 GHz 1.2:1 1.44 DC-2.5 GHz 1.3:1 1.441 . 1 gs Operating Characteristics at 25C (0, +3 V) Parameter Condition Frequency Min. Typ. Max. Unit Switching Characteristics Rise, Fall (10/90% or 90/10% RF) 10 ns On, Off (50% CTL to 90/10% RF) 20 ns Video Feedthru 25 mV Input Power for 1 dB Compression 0/+3 V 0.5-2.5 GHz +30 dBm 0/+5 V 0.5-2.5 GHz +34 dBm Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm 0/+3 V 0.5-2.5 GHz +43 dBm 0/+5 V 0.5-2.5 GHz +50 dBm Control Voltages Viow = 0 to 0.2 V @ 20 PA Max. Viigh = +3 V @ 100 PA Max. to +5 V @ 200 PA Max. 1.All measurements made ina50_ 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 1 Specifications subject to change without notice. 10/99A PHEMT GaAs IC SPDT Switch DC-2.5 GHz Typical Performance Data (0, +3 V) 1.0 mw 0.8 a a 8 0.6 l 6 & 04 oO wn = 0.2 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Insertion Loss vs. Frequency 1.4 1.3 LZ \ J N\ = KO a 1.2 7 > 11 1.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) VSWR vs. Frequency Truth Table Vi V2 J4-Ja Jids Vuigh 0 Isolation Insertion Loss 0 Vuigh Insertion Loss Isolation Viigh =+310+5V. Isolation (dB) 0.0 0.5 AS179-92 2.0 2.5 3.0 Frequency (GHz) Isolation vs. Frequency Absolute Maximum Ratings Characteristic Value RF Input Power 2 W > 500 MHz 0/+7 V Control Control Voltage O0.2V,+8V Operating Temperature -40C to +85C Storage Temperature -50C to +150C Jc 25 C/W Pin Out J3 O4 =] Ca GND Ot _of_ Cat I Yo} ve a} J, Ca ay, DC blocking capacitors (Cp_) must be supplied externally for positive voltage operation. Cp = 100 pF for operation >500 MHz. Specifications subject to change without notice. 10/99A Alpha Industries, Inc. [781] 935-5150 + Fax [617] 824-4579 + Email sales@alphaind.com + www.alphaind.com