SW-314 GaAs SP4T Absorptive Switch, DC - 3 GHz Features V 4.00 CR-14 n Integral TTL Driver n Isolation: 50 dB Typ. At 1 GHz n Ultra Low DC Power Consumption n Hermetic Surface Mount Package n 50 Ohms Nominal Impedance n MIL-STD-883 Screening Available Description M/A-COM’s SW-314 is a GaAs MMIC SP4T absorptive switch with an integral silicon ASIC driver. This device is in a 24-lead ceramic surface mount package. These switches exhibit excellent performance from DC to 3 GHz, with very low DC power dissipation. The SW-314 is ideally suited for RF/IF communications applications. Environmental screening is available. Contact the factory for information. Electrical Specifications1,2 (From –55°C to +85°C) Parameter Test Conditions Frequency Units Min Typ Max Insertion Loss — DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 3.0 GHz dB dB dB dB — — — — — — — — 1.3 1.4 1.6 1.8 Isolation — DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 3.0 GHz dB dB dB dB 50 40 35 30 — — — — — — — — VSWR RFC, RF1 - RF4 (On) DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 3.0 GHz Ratio Ratio Ratio Ratio — — — — — — — — 1.6:1 1.6:1 1.6:1 1.8:1 VSWR RF1 - RF4 (Off) DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 3.0 GHz Ratio Ratio Ratio Ratio — — — — — — — — 1.3:1 1.5:1 1.9:1 2.4:1 Trise, Tfall 10% to 90% — ns — 7 — Ton, Toff 50% Control to 90% / 10% RF — ns — 25 — Transients In-Band (peak-peak) — mV — 20 — 1 dB Compression Input Power 0.05 GHz 0.5 GHz to 3 GHz dBm dBm — — +20 +27 — — 1. All specifications apply when operated with bias voltages of +5V for Vcc and –5V for Vee. 2. When DC blocks are used, a 10K ohm return to GND is required on the RFC port. GaAs SP4T Absorptive Switch, DC - 3 GHz SW-314 V 4.00 Electrical Specifications (From –55°C to +85°C) Parameter Test Conditions Frequency Units Min Typ Max Two-Tone Input Power up to +5 dBm 0.05 GHz 0.5 GHz to 3 GHz dBm dBm — — +35 +46 — — IP2 Two-Tone Input Power up to +5 dBm 0.05 GHz 0.5 GHz to 3 GHz dBm dBm — — +45 +60 — — Vcc — — V 4.5 5.0 5.5 Vee — — V -8.0 — -5.0 Icc Vcc = 4.5 to 5.5 V Vctl = 0 to 0.8V, or Vcc –2.1V to Vcc — mA — 0.2 4.0 Iee Vee = -5.0V to -8.0V — mA — 0.1 1.0 Vctl Vctl Logic 0 (TTL) Logic 1 (TTL) — — V V 0.0 2.0 — — 0.8 5.0 Input Leakage Current (Low) 0 to 0.8V — µA — — 1.0 Input Leakage Current (High) 2.0 to 5.0V — µA — — 1.0 IP3 2 Absolute Maximum Ratings 3,4 Parameter Functional Schematic Absolute Maximum PIN 13 C3 Max Input Power 0.05 GHz 0.5 - 3.0 GHz 4 +27 dBm +34 dBm Bias Voltages Vcc Vee -0.5 to +5.5V -8.5V to +0.5V Control Voltage 5 -0.5V, to Vcc +0.5V Operating Temperature -55°C to +125°C Storage Temperature C1 GND Vcc GND Vee GND GND RF2 RF3 -65°C to +150°C 3. Operation of this device above any one of these parameters may cause permanent damage. 4. When the input power is applied to the terminated port, the absolute maximum is +30 dBm. 5. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. C2 PIN 12 C4 GND GND GND GND RF4 RF1 GND GND GND GND PIN 24 GND RFC PIN 1 Truth Table TTL Control Inputs Condition of Switch RF Common to Each RF Port C1 C2 C3 C4 RF1 RF2 RF3 RF4 1 0 0 0 On Off Off Off 0 1 0 0 Off On Off Off 0 0 1 0 Off Off On Off 0 0 0 1 Off Off Off On 0 = TTL Low 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. 1 = TTL High 2 GaAs SP4T Absorptive Switch, DC - 3 GHz SW-314 V 4.00 Typical Performance Curves Insertion Loss vs. Frequency +85°C +25°C Isolation vs. Frequency -55°C 90 2 80 70 Isolation dB Loss (dB) 1.5 1 0.5 60 50 40 30 20 10 0 0 0.0 0.5 1.0 1.5 2.0 2.5 3 0.0 0.5 Frequency (GHz) 1.5 2.0 2.5 3 Frequency (GHz) VSWR vs. Frequency RFC 1.0 Ordering Information RF1-RF4 (Off) RF1-RF4 (On) 2.20 Part Number Package 2.00 SW-314 CR-14 VSWR 1.80 1.60 1.40 1.20 1.00 0.0 0.5 1.0 1.5 2.0 2.5 3 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