AT-357 GaAs Digital Attenuator 31 dB, 5 - Bit, DC - 2 GHz Rev. V4 Features n n n C-46 Attenuation 1 dB Steps to 31 dB TTL Control Interface Hermetic Connectorized Housing Description Electrical Specifications 1: TA = -55°C to +85°C Parameter Nominal Attenuation Test Conditions 2 Frequency Units Min Typ Max 1 dB Steps to 31 dB Attenuation Accuracy DC - 1.0 GHz 1.0 - 2.0 GHz ± (0.2 dB +2% of Atten Setting in dB) dB) ± (0.2 dB +2% of Atten Setting in dB) dB) VSWR DC - .025 GHz .025 - 0.5 GHz 0.2 - 2.0 GHz 0.5 - 1.0 GHz Ratio Ratio Ratio Ratio — — — — — — — — 2.2:1 1.8:1 1.5:1 1.4:1 Reference Insertion Loss DC - 0.5 GHz 0.5 - 1.0 GHz 1.0 - 2.0 GHz dB dB dB — — — — — — 5.5 6.0 6.5 Impedance — — Ohms — 50 — Ton Toff 50% CTL to 90% RF 50% CTL to 10% RF — — ns ns — — 160 80 — — Trise Tfall 10% RF to 90% RF 90% RF to 10% RF — — ns ns — — 15 3 — — Transients Unfiltered — mV — 130 — 1 dB Compression Input Power 0.5 - 2.0 GHz 0.05 GHz dBm dBm — — 28 15 — — IP2 Two-Tone Input Power up to +5 dBm 0.5 - 2.0 GHz 0.05 GHz dBm dBm — — +55 +45 — — IP3 Two-Tone Input Power up to +5 dBm 0.5 - 2.0 GHz 0.05 GHz dBm dBm — — +47 +28 — — 1 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AT-357 GaAs Digital Attenuator 31 dB, 5 - Bit, DC - 2 GHz Rev. V4 Electrical Specifications 1: TA = -55°C to +85°C Parameter Test Conditions Frequency Units Min Typ Max Bias Power +15 VDC -12 VDC — — mA mA — — — — 5 3 Vin Low (0) Vin High (1) 0.0 to 0.8V 2.4 to 5.0V — — µA µA — — — — 1 1 Functional Schematic (Top View) Truth Table Control Input 4 dB 2 dB 1 dB Attenuation Setting 16 dB 8 dB C1 C2 C3 C4 C5 0 0 0 0 0 Reference 1 0 0 0 0 1 dB 0 1 0 0 0 2 dB 0 0 1 0 0 4 dB 0 0 0 1 0 8 dB 0 0 0 0 1 16 dB RF2 RF1 GND GND +15V C1 C2 GND GND C3 C4 -12V C5 Absolute Maximum Ratings Parameter 4 Any Combination Sum of Bits Selected Absolute Maximum “1” = Logic High (TTL) Max Input Power 0.05 GHz 0.5 - 2.0 GHz +27 dBm +32 dBm Bias Votlage +15V Supply (V+) -12V Supply (V-) -0.7V to +18V -15V to +0.7V Control Votlage (V-) -2V to (V+) +2V (or 30 mA, whichever comes first) Operating Temperature -55°C to +125°C Storage Temperature -65°C to +150°C “0” = Logic Low (TTL) 4. Operation of this device above any one of these parameters may cause permanent damage. 2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. AT-357 GaAs Digital Attenuator 31 dB, 5 - Bit, DC - 2 GHz Rev. V4 Typical Performance Curves Attenuation Flatness vs. Frequency Deviation from Nominal Attenuation (dB) 3 1 dB Ref. Insertion Loss vs. Frequency 1, 2 , 4 , 8 , 16 d B 1 6 5 Loss (dB) 0.5 0 -0.5 4 3 2 -1 0.00 0.25 0.50 0.75 1.00 1 0.00 F re que nc y ( G H z) 0.25 0.50 0.75 1.00 F requency (GH z) VSWR vs. Frequency Ordering Information Inser t i o n Lo ss and 1 d B B i t A t t enuat i o n o f 2 d B and G r eat er 2.00 Part Number Package AT-357 SMA C-46 VSWR 1.80 1.60 1.40 1.20 1.00 0.00 0.50 1.00 1.50 2.00 F re que nc y ( G H z) 3 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice.