GaAs IC Transfer Switch DC–2 GHz AS127-59 Features MSOP-8 ■ High Linearity (+45 dBm IP3 @ 0.9 GHz) 0.0256 (0.65 mm) TYP. ■ Small MSOP-8 Plastic Package PIN 1 INDICATOR ■ Low Insertion Loss (0.4 dB @ 0.9 GHz) 0.118 (3.00 mm) ± 0.004 (0.1 mm) SQ. 0.193 (4.90 mm) REF. ■ Simultaneous T/R Switching PIN 1 0.012 (0.30 mm) Description 7.0˚ 0.038 (0.95 mm) TYP. 0.030 (0.75 mm) The AS127-59 is a 4 port switch designed to combine T/R and antenna changeover switching capability within one device. This switch has two 5 V controls and is ideal for applications requiring low power consumption. The AS127-59 has excellent performance to 2 GHz making it suitable for dual band handset designs. 0.017 (0.43 mm) + 0.006 (0.15 mm) - 0.002 (0.05 mm) 0.007 (0.18 mm) ± 0.005 (0.12 mm) 0.006 (0.15 mm) 0.002 (0.05 mm) 8.0˚ MAX. 0.028 (0.70 mm) 0.016 (0.40 mm) Electrical Specifications at 25°C (0, -5 V) TX–J1 or RX–J1 Parameter1 Frequency2 Insertion Loss3 DC–0.5 GHz DC–1.0 GHz DC–2.0 GHz Isolation DC–0.5 GHz DC–1.0 GHz DC–2.0 GHz VSWR4 DC–1.0 GHz DC–2.0 GHz Min. 20 13 10 TX–J2 or RX–J2 Typ. Max. 0.35 0.45 0.7 0.5 0.7 1.0 25 15 13 1.2:1 1.3:1 Min. 25 17 14 1.5:1 1.8:1 Typ. Max. Unit 0.5 0.6 0.85 0.7 0.9 1.3 dB dB dB 28 20 16 dB dB dB 1.2:1 1.3:1 1.5:1 1.8:1 Typ. Max. Operating Characteristics at 25°C (0, -5 V) Parameter Switching Characteristics5 Condition Frequency Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru Input Power for 1 dB Compression (TX) Intermodulation Intercept Point (IP3) For Two-tone Input Power +0 dBm Control Voltages VLow = 0 to -0.2 V @ 20 µA Max. VHigh = -5 V @ 25 µA to -8 V @ 100 µA Max. Min. Unit 20 40 50 ns ns mV 0.5–2.0 GHz +33 dBm 0.5–2.0 GHz +45 dBm 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. 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 [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A 1 GaAs IC Transfer Switch DC–2 GHz AS127-59 Typical Performance Data (0, -5 V) 1.2 50 1.0 40 TX, RX–J2 30 dB dB 0.8 0.6 TX, RX–J1 20 TX, RX–J1 0.4 TX, RX–J2 10 0.2 0 0 0.5 1.0 1.5 0 2.0 0.5 1.0 1.5 2.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Isolation vs. Frequency 1.5 Absolute Maximum Ratings Characteristic 1.4 4 W > 0.5 GHz, 0/-5 V Control Control Voltage +0.2 V, -8 V 1.3 1.2 1.1 Value RF Input Power Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C ΘJC 25°C/W 1.0 0 0.5 1.0 1.5 2.0 Frequency (GHz) Pin Out VS VSWR vs. Frequency Isolation Isolation Insertion Loss 5 Insertion Loss 0 6 -5 7 0 -5 J2 4 TX–J1, RX–J2 3 TX–J2, RX–J1 V2 TX–J2, RX–J1 VHigh 0 Insertion Loss Isolation 0 VHigh Isolation Insertion Loss CBL CBL 10 kΩ VS TX–J1, RX–J2 VHigh = +5 to +8 V (VS = VHigh ± 0.2 V). 2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A J1 V1 External components shown are for positive voltage operation only. CBL = 100 pF for operation >500 MHz. Positive Operation V1 CBL V2 V2 GND CBL Negative Operation V1 8 TX 2 Truth Table GND 1 10 kΩ RX