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| Digital Attenuator, 31 dB, 5-Bit DC - 2 GHz Features * Attenuation 1 dB Steps to 31 dB * Temperature Stability +/- 0.15 dB from -55C to +85C Typical * Ultra Low DC Power Consumption * Hermetic Surface Mount Package * Fast Switching Speed, 12 ns Typical AT-262 V 2.00 CR-8 Guaranteed Specifications1 Frequency Range Nominal Attenuation 2 Attenuation Accuracy DC - 1.0 GHz DC - 2.0 GHz VSWR Reference Insertion Loss (From -55C to + 85C) DC - 2.0 GHz 1 dB Steps to 31 dB DC - 2.0 GHz +/-(0.2 dB +3% of Attenuation Setting in dB) dB +/-(0.3 dB +3% of Attenuation Setting in dB) dB DC - 2.0 GHz DC - 2.0 GHz 1.6:1 Max 2.5 dB Max Operating Characteristics Impedance Switching Characteristics Trise, Tfall (10% to 90%) Ton, Toff (50% CTL to 90%/10%) Transients (in-Band) Input Power for 1 dB Compression 0.05 GHz 0.5 - 2.0 GHz 50 Ohms Nominal 8 ns Typ 15 ns Typ 20 mV Typ +20 dBmTyp +28 dBmTyp Intermodulation Intercept point (for two-tone input power up to +5 dBm) Intercept Points IP2 IP3 0.05 GHz +46 +34 dBm Typ 0.5 - 2.0 GHz +60 +39 dBm Typ Control Voltages (Complementary Logic) Vin Low 0V to -0.2V @ 25 A Max Vin High -5V @ 10 A typ to -8V @ 200 A Max 1. All specifications apply when operated with a 50 ohm impedance at both RF ports. 2. Above reference insertion loss. 3. Contact the factory for standard or custom screening requirements. Ordering Information Model No. AT-262 PIN Package Surface Mount Digital Attenuator, 31 dB, 5-Bit AT-262 V 2.00 Absolute Maximum Ratings Typical Performance Parameter Max. Input Power 0.05 GHz 0.5 - 2.0 GHz Control Voltage Operating Temperature Storage Temperature Absolute Maximum1 +27 dBm +34 dBm +5 V, -8.5 V -55C to +125C -65C to +150C 1. Operation of this device above any one of these parameters may cause permanent damage. Truth Table Control Inputs VC5 VC4 VC4 VC3 VC3 VC2 VC2 VC1 VC1 Attenuation (dB) 1 0 1 1 1 1 0 1 1 0 1 1 1 0 0 0 1 0 0 0 1 1 1 1 0 1 1 0 0 0 0 1 0 0 1 1 1 1 1 0 1 0 0 0 0 0 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 1 1 Reference 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB "0" = Vin Low, Vin Low = 0V, "1" = Vin High, Vin High = -5V Functional Schematic (Top View) |
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