SW-485 GaAs SPDT Switch 0.05 - 3.0 GHz Features • • • • Functional Schematic Low Insertion Loss 0.3 dB Typ. @ 2.4 GHz Moderate Isolation 21 dB @ 2.4 GHz Low Power Consumption <5 µA @ +2.3V Low Cost Plastic SOT-363 Package C=39pF V1 RFC V2 RF1 GND RF2 Description M/A-COM’s SW -485 is a GaAs PHEMT MMIC SPDT switch in a low cost SC-70 (SOT-363) surface mount plastic package. The SW-485 is ideally suited for applications where very small size and low cost are required. Typical applications are dual band systems where switching b etween small signal components is required such as filter banks, single-band LNAs, converters, etc. This part can be used for low power, low loss requirements in the all systems operating up to 3 GHz, including PCS, GSM, DCS, Blue Tooth, and other Rx chain applications. PIN 1 C=39pF The SW -485 is fabricated using a 0.5 micron gate length GaAs PHEMT process. The process features full passiv ation for performance and reliability. Handling Procedures C=39pF Pin Configuration Pin No. Function Description The following precautions should be observed to avoid damage: 1 RF1 RF Port 1 2 GND Ground Static Sensitivity 3 RF2 RF Port 2 Gallium Arsenide Integrated Circuits are ESD sensitive and can be damaged by static electricity. Proper ESD techniques should be used when handling these devices. 4 V2 Control 2 5 RFC RF Input 6 V1 Control 1 Absolute Maximum Ratings 1 Parameter Absolute Maximum Max Input Power (0.5 - 3.0 GHz) Truth Table Mode (Control) Positive 1 3 V Control +32 dBm 5 V Control +34 dBm Operating Voltage +8.5 volts Operating Temperature -40 °C to +85 °C Storage Temperature -65 °C to +150 °C 1. Exceeding any one or combination of these limits may cause permanent damage. 2 Control V1 Control RFC- RF1 RFC-RF2 V2 0 ± 0.2V +2.3 to +5V +2.3 to +5V 0 ± 0.2V On Off Off On 2. External DC blocking capacitors are required on all RF ports. GaAs SPDT Switch 0.05—3.0 GHz SW-485 Electrical Specifications: TA = 25°C, Z0 = 50 Ω 3 Parameter Test Conditions Units Min Insertion Loss 0.05-1.0 GHz 0.05-3.0 GHz dB dB Isolation 0.05-1.0 GHz 0.05-3.0 GHz dB dB VSWR 0.05-3.0 GHz dB 1.1:1 IP2 Two Tone +5 dBm, 5 MHz Spacing, >50 MHz dBm 90 IP3 Two Tone +5 dBm, 5 MHz Spacing, >50 MHz dBm 46 P1dB Vc = 0.2V/2.5V Vc = 0.2V/3.0V dBm dBm 21 25 Trise, Tfall 10% to 90% RF and 90% to 10% RF nS 35 Ton, Toff nS 40 Transients mV 10 20 20 Typ Max 0.25 0.35 0.4 0.55 23 21 1.2:1 3. Insertion Loss can be optimized by varying the DC Blocking Capacitor value, i.e. 1000 pF for 100 MHz—1GHz, 39 pF for 0.5 GHz—3 GHz. SC-70 (SOT-363) Plastic Package 4 Dim PIN 6 D A e e E1 E PIN 1 L c A A1 A2 A Min. - Measurement (mm) Nom. - Max. 1.10 A1 0 - 0.10 A2 0.70 0.90 1.00 b 0.15 - 0.30 c 0.08 - 0.25 D - 2.00 basic - e - 0.65 basic - E - 2.10 basic - E1 - 1.25 basic - L - 0.42 ref. - Ordering Information b 4. All dimensions are JEDEC MO-203-AB Issue A and are shown as in/mm. Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. Part Number Package SW-485 SC-70 (SOT-363) Plastic Package SW-485TR-3000 Forward Tape and Reel, 3000 pcs SW-485SMB Sample Board 2 GaAs SPDT Switch 0.05—3.0 GHz SW-485 Typical Performance Curves Insertion Loss vs. Frequency, Over Temperature, 39 pF Insertion Loss vs. Frequency, Over Temperature, 1000 pF 0.4 0.5 +85°C 0.45 Insertion Loss (dB) Insertion Loss (dB) 0.35 +25°C 0.3 0.25 -40°C 0.2 0.15 0.4 +85°C 0.35 +25°C 0.3 0.25 0.2 -40°C 0.15 0.1 0.05 0.1 0.5 0 1 1.5 2 2.5 0 3 0.1 0.2 0.3 Frequency (GHz) Isolation vs. Frequency, Over Temperature, 39 pF 0.5 0.6 0.7 0.8 0.9 1 0.7 0.8 0.9 1 0.8 0.9 1 Isolation vs. Frequency, Over Temperature, 1000 pF 50 29 27 45 +25°C Isolation (dB) +25°C Isolation (dB) 0.4 Frequency (GHz) 25 -40°C 23 21 +85°C 19 40 -40°C 35 30 +85°C 25 17 15 0.5 20 1 1.5 2 2.5 0 3 0.1 0.2 0.3 Frequency (GHz) 0.4 0.5 0.6 Frequency (GHz) VSWR vs. Frequency, Over Temperature, 39 pF VSWR vs. Frequency, Over Temperature, 1000 pF 1.3 1.5 1.25 1.4 VSWR VSWR 1.2 1.3 +85°C 1.2 +25°C 1.15 -40°C 1.1 1.05 -40°C 1 0.5 +25°C 1.1 +85°C 1 1 1.5 2 2.5 Frequency (GHz) Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 3 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Frequency (GHz) 3