3 Watt Cellular T/R and Antenna Changeover Switch, DC - 3.0 GHz SW-425 SW-425 3 Watt Cellular T/R and Antenna Changeover Switch, DC - 3.0 GHz SOT-26 Plastic Package Features • • • • • • Low Cost Plastic SOT-26 Package Low Insertion Loss <0.6dB @ 1900 MHz Low Power Consumption <20µA @ +3V Very High Intercept Point: 53 dBm IP3 Both Positive and Negative 2.5 to 8 V Control For CDMA, W-CDMA, TDMA, GSM, PCS and DCS Applications XX#Y Description M/A-COM’s SW-425 is a GaAs monolithic switch in a low cost SOT-26 surface mount plastic package. The SW-425 is ideally suited for applications where very low power consumption (<10µA@5V), low intermodulation products and very small size are required. Typical applications include Internal/External antenna select switch for portable telephones and data radios. In addition, because of its low loss, good isolation and inherent speed, the SW-425 can be used as a conventional T/R switch or as an antenna diversity switch. The SW-425 can be used in power applications up to 3 watts in systems such as celluar PCS, CDMA, W-CDMA, TDMA, GSM and other analog/digital wireless communications systems. The SW-425 is fabricated using a new 0.5 micron gate length GaAs PHEMT process. The process features full chip passivation for increased performance and reliability. Electrical Specifications TA = 25°C PIN 1 Ordering Information Part Number SW-425 PIN SW-425TR SW-425RTR Package SOT-26 Plastic Package 1 Forward Tape and Reel 1 Reverse Tape and Reel 1. Reference Application Note M513 for reel size information. Parameter Insertion Loss Insertion Loss Insertion Loss Isolation Isolation Isolation VSWR P1dB (3V supply) Test Conditions DC - 1 GHz 1- 2 GHz 2 - 3 GHz DC - 1 GHz 1 - 2 GHz 2 - 3 GHz DC - 3 GHz 500 MHz - 3 GHz Units dB dB dB dB dB dB Min. dBm 32 Typ. 0.4 0.55 0.7 20 15 12 1.2:1 34 P1dB (5V supply) 500 MHz - 3 GHz dBm 34 36 Input IP2 2-Tone, 5 MHz spacing, 0.9 GHz +10 dBm (+13 dBm total) VCTL=3V 2-Tone, 5 MHz spacing, 0.9 GHz +10 dBm (+13 dBm total) VCTL=3V Pin 30 dBm |VCTL| = 3V dBm 62 70 dBm 48 53 dBc 65 45 70 48 Pin 33 dBm |VCTL| = 5V dBc 65 65 75 75 10% to 90% RF, 90% to 10% RF 50% Control to 90% RF, Control to 10% RF In-Band VCTL = 3 V nS nS mV µA Input IP3 nd Harmonics 2 rd 3 Harmonics 2nd 3rd Trise, Tfall Ton, Toff Transients Gate Leakage Current 18 13 10 60 20 20 10 Max. 0.5 0.65 0.8 1.4:1 20 V2.00 M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice. 3 Watt Cellular T/R and Antenna Changeover Switch, DC - 3.0 GHz 1 Absolute Maximum Ratings Parameter Max. Input Power (0.5 - 3.0 GHz) 3 V Control 5 V Control Operating Temperature Storage Temperature SW-425 Functional Diagram Absolute Maximum VA RFC VB RF1 GND RF2 +36 dBm +38 dBm -40°C to +85°C -65°C to +150°C 1. Exceeding any one or combination of these limits may cause permanent damage. PIN 1 Truth Table Mode (Control) Positive1 Postitive/ Negative1,2 Negative3 Control A Control B RFC - RF1 RFC - RF2 0±0.2V +2.5 to +8V +2.5 to +8V 0±0.2V Off On On Off -Vc±0.2V +Vc +Vc -Vc±0.2V Off On On Off 0±0.2V -2.5V to -8V -2.5V to -8V 0±0.2V On Off Off On 1. External DC blocking capacitors are required on all RF ports. 39pF capacitors used for positive control voltage. 2. |-VCTL|, VCTL ≤ 8 V 3. If negative control is used, DC blocking capacitors are not required on RF Ports. PIN Configuration PIN No. Function Description 1 RF1 RF in/out 2 GND RF Ground 3 RF2 RF in/out 4 VB V Control B 5 RFC RF COMMON 6 VA V Control A Handling Procedures The following precautions should be observed to avoid damage: Static Sensitivity Gallium arsenide Integrated Circuits are ESD sensitive and can be damaged by static electricity. Proper ESD techniques should be used when handling these devices. V2.00 M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice. 3 Watt Cellular T/R and Antenna Changeover Switch, DC - 3.0 GHz SW-425 Typical Performance Curves rd 3 Harmonic vs. VCTL at fO = 900 MHz P1dB * HARMONICS (dBc) COMPRESSION (dBm) Input Compression Point vs. VCTL at 900 MHz 40 38 36 34 32 30 28 26 24 22 20 P0.1dB *Above VCTL=4V, P1dB is not measurable due to thermal runaway conditions 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 90 85 80 75 70 65 60 55 50 45 40 35 30 Pin=29dBm 2.5 3 3.5 4 4.5 2nd Harmonic vs. VCTL at fO = 900 MHz INSERTION LOSS (dB) HARMONICS (dBc) 80 75 70 65 55 Pin=29dBm Pin=33dBm Pin=31dBm Pin=34dBm 50 2.5 3 3.5 4 4.5 5.5 6 6.5 7 7.5 8 Insertion Loss vs. Frequency and Temperature Pin=28dBm Pin=30dBm 5 VCTL (V) 90 60 Pin=33dBm Pin=28dBm VCTL (V) 85 Pin=34dBm Pin=31dBm Pin=30dBm 5 5.5 VCTL (V) 6 6.5 7 7.5 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 85°C 25°C -40°C 0 8 0.5 1 1.5 2 2.5 3 FREQUENCY (GHz) Isolation vs. Frequency and Temperature VSWR vs. Frequency and Temperature 1.5 50 1.4 40 35 VSWR ISOLATION (dB) 45 30 25 1.3 25°C -40°C 1.2 85°C, -40°C, 25°C 20 1.1 15 85°C 10 1 0 0.5 1 1.5 2 2.5 FREQUENCY (GHz) 3 0 0.5 1 1.5 2 2.5 3 FREQUENCY (GHz) V2.00 M/A-COM Division of AMP Incorporated 3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 3 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 www.macom.com AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice.