AT-283-PIN Digital Attenuator Rev. V7 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz Features Functional Schematic Attenuation: 0.5 dB Steps to 15.5 dB Temperature Stability: 0.18 dB from 55C to +85C Typical Low DC Power Consumption Hermetic Surface Mount Package Integral TTL Driver 50 Nominal Impedance Lead-Free CR-12 Package 260C Reflow Compatible RoHS* Compliant Description M/A-COMs AT-283-PIN is a GaAs FET 5-bit digital attenuator with a 0.5 dB minimum step size and 15.5 dB total attenuation. This attenuator and integral TTL driver is in a hermetically sealed ceramic 16 lead surface mount package. The AT-283-PIN is ideally suited for use where accuracy, fast switching, very low power consumption and low intermodula- tion products are required. Typical applications in- clude dynamic range setting in precision receiver circuits and other gain/leveling control circuits. Envi- Pin Configuration ronmental screening is available. Contact the fac- tory for information. Pin No. Function Pin No. Function 1 RF1 9 C5 2 GND 10 +5V 3 GND 11 -5V 4 GND 12 C4 5 GND 13 C3 Ordering Information 6 GND 14 C2 7 GND 15 C1 Part Number Package 8 RF2 16 GND AT-283-PIN Bulk Packaging MAAD-007229-0001TR 1000 piece reel The metal bottom of the case must be connected to RF and DC ground. MAAD-007229-0001TB Sample Test Board 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-283-PIN Digital Attenuator Rev. V7 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz 1 Electrical Specifications: T = 25C A Parameter Test Conditions Units Min Typ Max Reference DC-0.5 GHz dB 2.2 Insertion Loss DC-1.0 GHz dB 2.5 DC-2.0 GHz dB 2.9 2 Attenuation Accuracy Any Single Bit DC-2.0 GHz (0.25 +3% of attenuation setting in dB) dB Any Combination of Bits DC-2.0 GHz (0.25 +3% of attenuation setting in dB) dB or 0.4 dB, whichever is greater VSWR DC-1.0 GHz 1.6:1 DC-2.0 GHz 1.7:1 Trise, Tfall 10% to 90% nS 10 Ton, Toff 50% Control to 90/10% RF nS 27 Transients In-band (peakpeak) mV 22 3 1 dB Compression Input Power 0.05 GHz dBm +20 Input Power 0.5-2.0 GHz dBm +28 3 Input IP For two-tone input power 0.05 GHz dBm +40 3 up to +5 dBm 0.5-2.0 GHz dBm +47 3 Input IP For two-tone input power 0.05 GHz dBm +53 2 up to +5 dBm 0.5-2.0 GHz dBm +68 V V 4.5 5.0 5.5 CC V V -8.0 -5.0 EE I V = 4.5 to 5.5V mA 5.0 CC CC Vctl = 0 to 0.8V, or V - 2.1V to V CC CC I V = -5.0 to 8.0V mA 1.0 EE EE 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 1. All specifications apply when operated with bias voltages of +5.0V for V and 5.0V to -8.0V for V , and 50 impedance at all ports CC EE unless otherwise specified. 2. This attenuator is guaranteed monotonic. 3. V = -5.0V for the typical numbers given. EE 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: