AT-273-PIN Digital Attenuator Rev. V9 32.0 dB, 2-Bit, TTL Driver, DC-2.0 GHz 1 Features Functional Schematic Attenuation: 16.0 dB Steps to 32 dB Low DC Power Consumption RF1 RF2 Hermetic Surface Mount Package GND GND Integral TTL Driver 16 dB GND GND 50 ohm Impedance GND GND Temperature Stability: 0.18 dB from -55C to 16 dB Vee GND +85C Typ. C1 Vcc Tape and Reel Packaging Available GND Orientation Mark NC Lead-Free CR-11 Package 260C Reflow Compatible PIN 16 NC C2 PIN 1 RoHS* Compliant Description 1. Use the C1 control for a single 16-dB bit. M/A-COM s AT-273-PIN is a GaAs FET digital attenuator with a 16.0 dB minimum step size and a Pin Configuration 32 dB total attenuation range. This attenuator and integral TTL driver is in a hermetically sealed Pin No. Function Pin No. Function ceramic 16-lead surface mount package. The AT- 1 C2 9 RF1 273-PIN is ideally suited for use where accuracy, fast switching, very low power consumption and low 2 GND 10 GND intermodulation products are required. Typical 3 C1 11 GND applications include dynamic range setting in 4 GND 12 GND precision receiver circuits and other gain/leveling control circuits. Environmental screening is 5 GND 13 Vee available. Contact the factory for information. 6 GND 14 Vcc 7 GND 15 NC 8 RF2 16 NC The metal bottom of the case must be connected to RF and DC ground. Ordering Information Part Number Package AT-273-PIN Bulk Packaging Note: Reference Application Note M513 for reel size information. * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 11 1 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: AT-273-PIN Digital Attenuator Rev. V9 32.0 dB, 2-Bit, TTL Driver, DC-2.0 GHz 1,2 Electrical Specifications: T = 25C A Parameter Test Conditions Frequency Units Min Typ Max Insertion Loss DC - 0.5 GHz dB 1.6 DC - 1.0 GHz dB 1.7 DC - 2.0 GHz dB 1.9 Attenuation Accuracy C1 Bit DC - 2.0 GHz 3% of attenuation setting in dB Full Attenuation (32 dB) DC - 0.5 GHz 3% of attenuation setting in dB Full Attenuation (32 dB) DC - 1.0 GHz 3% of attenuation setting in dB, -1 dB Full Attenuation (32 dB) DC - 2.0 GHz 3% of attenuation setting in dB, -3 dB VSWR Full Range DC - 2.0 GHz Ratio 1.6:1 Trise, Tfall 10% to 90% ns 7 Ton, Toff 50% Cntl to 90% / 10% RF ns 28 Transients In-Band (peak-to-peak) mV 30 1 dB Compression Input Power 0.05 GHz dBm +20 Input Power 0.5 - 2.0 GHz dBm +28 Input IP3 Two-tone inputs up to +5 dBm 0.05 GHz dBm +38 0.5 - 2.0 GHz dBm +48 Input IP2 Two-tone inputs up to +5 dBm 0.05 GHz dBm +44 0.5 - 2.0 GHz dBm +68 Vcc V 4.5 5.0 5.5 -Vee V -8.0 -5.0 Vctl Logic (0) TTL V 0.0 0.8 Vctl Logic (1) TTL V 2.0 5.0 Input Leakage Current (Low) 0 to 0.8V A 1.0 Input Leakage Current (High) 2.0 to 5.0V A 1.0 Icc Vcc = 4.5 to 5.5V mA 2.0 Vctl = 0 to 0.8V, or Vcc 2.1V to Vcc -Iee Vee = -5.0 to -8.0V mA -1 1. All specifications apply when operated with bias voltages of +5V for Vcc and 5.0V for Vee. 2. This attenuator is guaranteed monotonic. 22 2 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: