Voltage Variable Absorptive Attenuator, 19 dB AT-302, AT-303, AT-307 DC - 2 GHz V 2.00 AT-302 (TO-5-4) Features • Fast Switching Speed, 4 ns Typical • Ultra Low DC Power Consumption • Small Package Size Guaranteed Specifications1 (From -55°C to +85°C) Frequency Range DC – 2.0 GHz AT-302 AT-303 AT-307 Insertion Loss DC – 2.0 GHz DC – 1.0 GHz 1.6 1.5 1.5 1.5 1.5 1.5 VSWR (Matched) DC – 2.0 GHz DC – 1.0 GHz DC – 0.5 GHz 2.0:1 2.0:1 1.5:1 1.6:1 1.5:1 1.5:1 1.6:1 1.5:1 1.5:1 dB Max dB Max Max Max Max Attenuation DC – 2.0 GHz 19 19 19 dB Min Flatness (Peak to Peak) DC – 2.0 GHz DC – 1.0 GHz 1.5 1.0 1.5 1.5 1.5 1.5 dB Max dB Max Attenuation vs. Temperature 0 to 10 dB Att. 0 to 20 dB Att. ±0.5 ±1.5 ±0.5 ±1.5 ±0.5 dB Max ±1.5 dB Max AT-303 (CR-3) Operating Characteristics Impedance 50 Ohms Nominal Switching Characteristics2 Trise,Tfall (10% to 90%) Ton, Toff (50% CTL to 90%/10% RF) Transients (in band) Input Power for 1 dB Compression Attenuation Level 0 2 0.5 to 2.0 GHz +29 +29 0.05 GHz +24 +26 6 ns Typ 8 ns Typ 10 mV Typ 5 +21 +18 10 +28 +28 20 +30 +30 dB dBm Typ dBm Typ Intermodulation Intercept Point (for two-tone input power up to +5 dBm) Intercept Points IP2 IP3 Attenuation Level: 0 5 10 0 5 10 dB 0.5 to 2.0 GHz 68 47 53 49 39 40 dBm Typ 0.05 GHz 51 40 38 48 32 32 dBm Typ Phase Shift (Relative to 0 dB Attenuation) Attenuation Level: 10 0.5 GHz 2.5 Control Voltages A Input (Shunt FETS) B Input (Series FETS) AT-307 (CR-2 w/o Pin 1) 19 11 dB Deg Typ 0 to -4V @ 100 µA Max 0 to -4V @ 100 µA Max 1. All specifications apply with 50 ohm connected to all RF ports. 2. Switching speed is measured between 19 dB and 0 dB attenuation levels. 3. Contact the factory for standard or custom screening requirements. Ordering Information Model No. Package AT-302 PIN TO-5-4 AT-303 PIN Ceramic AT-307 PIN Ceramic For all packages: Voltage Variable Absorptive Attenuator AT-302, AT-303, AT-307 V 2.00 Absolute Maximum Ratings Parameter Functional Schematics (Top View) Absolute Maximum1 Max. Input Power 0.05 GHz 0.5 – 2.0 GHz +27 dBm +30 dBm Control Voltage +5V, -8.5V Operating Temperature -55°C to +125°C Storage Temperature -65°C to +150°C 1.Operation of this device above any one of these parameters may cause permanent damage. AT-303 Typical Performance