GaAs MMIC High Isolation SPST Switch Positive Control 0.7-2.5 GHz AS123-12 Features SOIC-8 Single Positive Control Voltage PIN 8 0.050 (1.27 mm) BSC +5 V Operation High Isolation (45 dB @ 0.9 GHz, 47 dB @ 1.9 GHz) 0.244 (6.20 mm) 0.228 (5.80 mm) PIN 1 INDICATOR J1 Port Non-Reflective 0.020 (0.51 mm) MAX. PIN 1 0.068 (1.73 mm) MAX. Description The AS123-12 SPST IC FET switch is absorptive on the input. The switch features high isolation and low insertion loss. Ideal building block for base station applications where synthesizer isolation is critical. Use in conjunction with the AS148-24 SPDT switch to meet GSM synthesizer switch isolation requirements. 0.197 (5.00 mm) 0.189 (4.80 mm) 0.010 (0.25 mm) 0.004 (0.10 mm) 0.016 MAX. (0.41 mm) x 45 CHAMFER 0.049 (1.24 mm) 0.016 (0.41 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 Frequency Loss2 Min. 0.7-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz Isolation 0.7-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz VSWR3 0.7-1.8 GHz 1.8-2.5 GHz 39 42 30 Typ. Max. Unit 0.7 0.8 1.2 0.9 1.0 1.3 dB dB dB 45 47 35 dB dB dB 1.5:1 1.7:1 1.7:1 1.8:1 Typ. Max. Operating Characteristics at 25C (0, +5 V) Parameter Switching Characteristics4 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 Min. Unit 25 150 50 ns ns mV 0.5-2.0 GHz +28 dBm 0.5-2.0 GHz +45 dBm Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm Control Voltages VLow = 0 to 0.2 V @ 20 A Max. VHigh = +5 V @ 50 A Max. to +7 V @ 200 A Max. VS = VHigh 0.2 V 1. All measurements made in a 50 system, unless otherwise specified. 2. Insertion loss changes by 0.003 dB/C. 3. Insertion loss state and J1 port. 4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. Skyworks Solutions, Inc. [978] 241-7000 * Fax [978] 241-7906 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 3/99A 1 GaAs MMIC High Isolation SPST Switch Positive Control 0.7-2.5 GHz AS123-12 Typical Performance Data (0, +5 V) 1.2 70 1.1 60 50 0.9 dB dB 1.0 0.8 40 30 0.7 20 0.6 0.5 10 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 2.0 1.5 2.5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Isolation vs. Frequency 2.0 3.0 Absolute Maximum Ratings Isolation State Characteristic 1.8 Value RF Input Power 2 W Max. > 500 MHz, 0/+7 V Control Supply Voltage +8 V 1.6 Control Voltage 1.4 Insertion Loss State 1.2 -0.2 V, +8 V Operating Temperature -40C to +85C Storage Temperature -65C to +150C JC 25C/W 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 Pin Out Frequency (GHz) VSWR vs. Frequency 8 1 GND CBL Truth Table V1 GND 50 J1 CBL GND 4 VHigh = +5 to +7 V (VS = VHigh 0.2 V). Isolation 5 VHigh GND 6 Insertion Loss 7 0 VS 3 J1-J2 2 V1 DC blocking capacitors must be supplied externally. CBL = 100 pF for operation >500 MHz. 2 Skyworks Solutions, Inc. [978] 241-7000 * Fax [978] 241-7906 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 3/99A J2