AT-232-PIN Digital Attenuator 30.0 dB, 4-Bit, TTL Driver, DC-2.0 GHz Features Rev. V5 Functional Schematic • Attenuation: 2 dB steps to 30 dB • Temperature Stability: ± 0.18 dB from –55°C to +85°C Typical • Low DC Power Consumption • Hermetic Surface Mount Package • Fast Switching Speed, 12 ns Typical • 50 Ohm Nominal Impedance • Lead-Free CR-6 Package • 260°C Reflow Compatible • RoHS* Compliant PIN 1 VC1 RF1 PIN 16 16 dB /VC1 GND VC2 GND 8 dB /VC2 GND VC3 GND 4 dB /VC3 GND VC4 GND Orientation Mark 2 dB /VC4 RF2 Description M/A-COM’s AT-232-PIN is a GaAs FET 4-bit digital attenuator with a 2 dB minimum step size and 30 dB total attenuation. This attenuator is in a hermetically sealed ceramic 16-lead surface mount package. The AT-232-PIN is ideally suited for use where accuracy, fast switching, very low power consumption and low intermodulation products are required. Typical applications include dynamic range setting in precision receiver circuits and other gain/leveling control circuits. Environmental screening is available. Contact the factory for information. Pin Configuration Pin No. Function Pin No. Function 1 VC1 9 RF2 2 /VC1 10 GND 3 VC2 11 GND 4 /VC2 12 GND 5 VC3 13 GND 6 /VC3 14 GND 7 VC4 15 GND 8 /VC4 16 RF1 Ordering Information The metal bottom of the case must be connected to RF and DC ground. Part Number Package AT-232-PIN Bulk Packaging Note: Reference Application Note M513 for reel size information. * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 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: +91.80.4155721 • 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-232-PIN Digital Attenuator 30.0 dB, 4-Bit, TTL Driver, DC-2.0 GHz Rev. V5 Electrical Specifications: From –55°C to +85°C1 Parameter Test Conditions Frequency Units Min Typ Max Reference Insertion Loss — DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz dB dB dB — — — — — — 2.0 2.3 2.5 Attenuation Accuracy 2 Any Single Bit DC - 1.0 GHz DC - 2.0 GHz Any Combination of Bits DC - 1.0 GHz DC - 2.0 GHz VSWR — DC - 2.0 GHz Ratio — — 1.6:1 Trise, Tfall 10% to 90% — ns — 12 — Ton, Toff 50% Control to 90/10% RF — ns — 18 — Transients In-Band (peak-peak) — mV — 25 — 1 dB Compression Input Power Input Power 0.05 GHz 0.5 - 2.0 GHz dBm dBm — — +20 +28 — — Input IP3 For two-tone Input Power Up to +5 dBm 0.05 GHz 0.5 - 2.0 GHz dBm dBm — — +40 +50 — — Input IP2 For two-tone Input Power Up to +5 dBm 0.05 GHz 0.5 - 2.0 GHz dBm dBm — — +45 +68 — — Input Leakage Current (Low) -0.2 to 0V — µA — — 20 Input Leakage Current (High) -8.0 to -5.0V — µA — — 200 ± (0.15 dB +3% of atten setting in dB) dB ± (0.2 dB +3% of atten setting in dB) dB Or ± 0.45 dB, whichever is greater ± (0.22 dB +3% of atten setting in dB) dB ± (0.25 dB +4% of atten setting in dB) dB Or ± 0.45 dB, whichever is greater 1. All specifications apply when operated with control voltages of 0.0V to -5.0V. 2. This attenuator is guaranteed monotonic. Absolute Maximum Ratings 3,4 3. 4. Parameter Absolute Maximum Max Input Power 0.05 GHz 0.5 - 2.0 GHz +27 dBm +34 dBm Control Voltage -8.5 V < Vc < +5 V Operating Temperature -55°C to +125°C Storage Temperature -65°C to +150°C Exceeding any one or combination of these limits may cause permanent damage to this device. M/A-COM does not recommend sustained operation near these survivability limits. 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: +91.80.4155721 • 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-232-PIN Digital Attenuator 30.0 dB, 4-Bit, TTL Driver, DC-2.0 GHz Rev. V5 Truth Table (Digital Attenuator) Handling Procedures Control Inputs Please observe the following precautions to avoid damage: /VC4 VC4 /VC3 VC3 /VC2 VC2 /VC1 VC1 Atten. (dB) Static Sensitivity -5V 0V -5V 0V -5V 0V -5V 0V Ref. Gallium Arsenide Integrated Circuits are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices. 0V -5V -5V 0V -5V 0V -5V 0V 2 dB -5V 0V 0V -5V -5V 0V -5V 0V 4 dB -5V 0V -5V 0V 0V -5V -5V 0V 8 dB -5V 0V -5V 0V -5V 0V 0V -5V 16 dB 0V -5V 0V -5V 0V -5V 0V -5V 30 dB Typical Performance Curves VSWR vs. Frequency Ref. Insertion Loss vs. Frequency - 55 °C + 2 5 °C + 8 5 °C 2 dB 4 dB 8 dB 16 d B 3 0 d B Inser t io n Lo ss 1.6 1.5 3 1.4 VSWR Insertion Loss (dB) 4 2 1.3 1.2 1 1.1 0 1.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Fre que ncy (GHz ) Fre que ncy (GHz ) Attenuation Accuracy vs. Frequency 2 dB 16 d B 4 dB 8 dB 3 0 dB D ev ia tio n fro m N o mina l A tten (dB) 3.00 2.50 2.00 1.50 1.00 0.50 0.00 -0.50 -1.00 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) 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: +91.80.4155721 • 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-232-PIN Digital Attenuator 30.0 dB, 4-Bit, TTL Driver, DC-2.0 GHz Rev. V5 Lead-Free, CR-6 Ceramic Package† † Reference Application Note M538 for lead-free solder reflow recommendations. 4 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: +91.80.4155721 • 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.