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| AT-283-PIN Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz Features * 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 Rev. V7 Functional Schematic Description M/A-COM's 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 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. 1 2 3 4 Function RF1 GND GND GND GND GND GND RF2 Pin No. 9 10 11 12 13 14 15 16 Function C5 +5V -5V C4 C3 C2 C1 GND Ordering Information Part Number AT-283-PIN MAAD-007229-0001TR MAAD-007229-0001TB 5 6 7 Package Bulk Packaging 1000 piece reel Sample Test Board 8 The metal bottom of the case must be connected to RF and DC ground. 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-283-PIN Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz Rev. V7 Electrical Specifications: TA = 25C1 Parameter Reference Insertion Loss Attenuation Accuracy 2 Test Conditions DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz Any Single Bit Any Combination of Bits DC-1.0 GHz DC-2.0 GHz 10% to 90% 50% Control to 90/10% RF In-band (peak--peak) Input Power Input Power 0.05 GHz 0.5-2.0 GHz 0.05 GHz 0.5-2.0 GHz 0.05 GHz 0.5-2.0 GHz DC-2.0 GHz DC-2.0 GHz Units dB dB dB Min -- -- -- Typ -- -- -- Max 2.2 2.5 2.9 (0.25 +3% of attenuation setting in dB) dB (0.25 +3% of attenuation setting in dB) dB or 0.4 dB, whichever is greater -- -- nS nS mV dBm dBm dBm dBm dBm dBm V V mA mA V V A A -- -- -- -- -- -- -- -- -- -- -- 4.5 -8.0 -- -- 0.0 2.0 -- -- -- -- 10 27 22 +20 +28 +40 +47 +53 +68 5.0 -- -- -- -- -- -- -- 1.6:1 1.7:1 -- -- -- -- -- -- -- -- -- 5.5 -5.0 5.0 1.0 0.8 5.0 1.0 1.0 VSWR Trise, Tfall Ton, Toff Transients 1 dB Compression 3 Input IP3 3 Input IP2 3 VCC VEE ICC IEE Vctl Vctl Input Leakage Current (Low) Input Leakage Current (High) 1. 2. 3. For two-tone input power up to +5 dBm For two-tone input power up to +5 dBm -- -- VCC = 4.5 to 5.5V Vctl = 0 to 0.8V, or VCC - 2.1V to VCC VEE = -5.0 to -8.0V Logic 0 (TTL) Logic 1 (TTL) 0 to 0.8V 2.0 to 5.0V All specifications apply when operated with bias voltages of +5.0V for VCC and -5.0V to -8.0V for VEE, and 50 impedance at all ports unless otherwise specified. This attenuator is guaranteed monotonic. VEE = -5.0V for the typical numbers given. 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-283-PIN Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz Absolute Maximum Ratings 4,5 Parameter Maximum Input Power 0.05 GHz 0.5-2.0 GHz VCC VEE VCC - VEE Vin6 Operating Temperature Storage Temperature 4. 5. 6. Rev. V7 Recommended PCB Configuration Absolute Maximum +27 dBm +34 dBm -0.5V VCC +7.0V -8.5V VEE +0.5V -0.5V VCC - VEE 14.5V -0.5V Vin VCC + 0.5V -55C to +125C -65C to +150C 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. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. Handling Procedures Please observe the following precautions to avoid damage: Truth Table (Digital Attenuator) Control Inputs C1 0 1 0 0 0 0 Static Sensitivity 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. C2 0 0 1 0 0 0 1 C3 0 0 0 1 0 0 1 C4 0 0 0 0 1 0 1 C5 0 0 0 0 0 1 1 Attenuation Reference 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB Typical Performance Curves Reference Insertion Loss vs. Frequency @ Temperature + 8 5 C 5.0 + 2 5 C - 55 C 1 0 = TTL Low; 1 = TTL High Attenuation Accuracy vs. Frequency 0.5, 1, 2 dB Bits Deviation from Nom. Atten. (dB) 0.5 Insertion Loss (dB) 4.0 3.0 0.3 0.0 2.0 1.0 -0.3 0.0 0 500 1000 1500 2000 -0.5 0 500 1000 1500 2000 Fre que ncy (MHz ) 3 Fre que ncy (MHz ) 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-283-PIN Digital Attenuator 15.5 dB, 5-Bit, TTL Driver, DC-2.0 GHz Typical Performance Curves Attenuation Accuracy vs. Frequency 4, 8 dB Bits and Full Attenuation VSWR vs. Frequency Reference Loss, 0.5, 1, 2 dB Bits Rev. V7 F ull A t t en. Deviation from Nom. Atten. (dB) 1.0 2.0 1.8 VSWR 0.5 1.6 1.4 1.2 0.0 -0.5 0 500 1000 1500 2000 1.0 0 500 1000 1500 2000 Fre que ncy (MHz ) Fre que ncy (MHz ) VSWR vs. Frequency 4, 8 dB Bits and Full Attenuation Lead-Free, CR-12 Ceramic Package 2.0 1.8 VSW R 1.6 1.4 1.2 1.0 0 500 1000 1500 2000 Frequency (MHz) 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. |
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