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| AT20-0106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Features * Attenuation: 1 dB steps to 50 dB * Temperature Stability: 0.18 dB from -40C to +85C Typical * Low DC Power Consumption * Surface Mount Package * Integral TTL Driver * High Intercept Point * Low Cost/High Performance * 50 Ohm Nominal Impedance * Lead-Free CR-13 Package * 260C Reflow Compatible * RoHS* Compliant Rev. V10 Functional Schematic Description M/A-COM's AT20-0106 is a GaAs FET 6-bit digital attenuator with a 1 dB minimum step size and 50 dB total attenuation. This attenuator and integral TTL driver is in a ceramic 24-lead surface mount package. The AT20-0106 is ideally suited for use where accuracy, fast switching, 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. Available with enhanced performance as fully hermetic version. Environmentally screenable as P/N AT-106-PIN. Pin Configuration Pin No. 1 2 3 4 5 6 7 8 9 Function GND GND GND C32 C16 Vee (-5V to -8V) Vcc (+5V) C8 C4 C2 C1 GND Pin No. 13 14 15 16 17 18 19 20 21 22 23 24 Function RF2 GND GND GND GND GND GND GND GND GND GND RF1 Ordering Information Part Number AT20-0106-PIN AT20-0106-TR AT20-0106-TB 10 11 Package Bulk Packaging 1000 piece reel Sample Test Board 12 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. AT20-0106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Electrical Specifications: TA = 25C1 Parameter Reference Insertion Loss Rev. V10 Test Conditions -- Frequency DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 2.0 GHz DC - 2.0 GHz DC - 1.5 GHz 0.05 - 0.10 GHz 0.101 - 2.0 GHz -- -- -- 0.05 GHz 0.5 - 2.0 GHz 0.05 GHz 0.5 - 2.0 GHz 0.05 GHz 0.5 - 2.0 GHz -- -- -- Units dB dB dB dB dB dB Ratio Ratio ns ns mV dBm dBm dBm dBm dBm dBm V V mA Min -- -- -- Typ 3.5 3.9 4.2 Max 3.8 4.2 4.6 Attenuation Accuracy 2 Any Single Bit Any Combination of Bits (For attenuation to 26 dB) Any Combination of Bits (For attenuation 27 to 50 dB) -- 10% to 90% 50% Control to 90/10% RF In-Band (peak-peak) Input Power Input Power 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 (0.3 +4% of atten. setting) (0.4 +4% of atten. setting) (0.5 +5% of atten. setting) -- -- -- -- -- -- -- -- -- -- -- 4.5 -8.0 -- -- -- -- -- 50 +20 +28 +34 +46 +45 +79 5.0 -- -- 2.0:1 1.8:1 50 150 -- -- -- -- -- -- -- 5.5 -5.0 6.0 VSWR Trise, Tfall Ton, Toff Transients 1 dB Compression Input IP3 Input IP2 Vcc Vee Icc Iee -- mA -- -- 1.0 1. All specifications apply when operated with bias voltages of +5V for Vcc and -5.0V for Vee. 2. This attenuator is guaranteed monotonic. 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. AT20-0106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Absolute Maximum Ratings 3,4 Parameter Max Input Power 0.05 GHz 0.5 - 2.0 GHz VCC VEE VCC - VEE Vin 5 Rev. V10 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 -40C to +125C -65C to +150C Operating Temperature Storage Temperature 3. 4. 5. 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. Truth Table (Digital Attenuator) Control Inputs C6 0 0 0 0 0 0 1 1 Handling Procedures Please observe the following precautions to avoid damage: C5 0 0 0 0 0 1 0 1 C4 0 0 0 0 1 0 0 1 C3 0 0 0 1 0 0 0 1 C2 0 0 1 0 0 0 0 1 C1 0 1 0 0 0 0 0 1 Attenuation Reference 1 dB 2 dB 4 dB 8 dB 16 dB 32 dB 63 dB 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. Typical Performance Curves Insertion Loss vs. Frequency +8 5 C 5 0 = TTL Low; 1 = TTL High Attenuation Accuracy vs. Frequency - 5 5 C 1 dB 2 dB 4 dB 8 dB 0.60 0.40 0.20 0.00 -0.20 -0.40 -0.60 0.0 0.5 1.0 1.5 2.0 +2 5 C 4 3 2 1 0 0.0 0.5 1.0 1.5 2.0 Fre que ncy (GHz ) 3 Deviation from Nominal Atten (dB) Insertion Loss (dB) F re que nc y ( G H z) 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. AT20-0106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Typical Performance Curves Attenuation Accuracy vs. Frequency 16 d B 2.00 3 2 dB 4 0 dB 50 d B Rev. V10 RF1 VSWR vs. Frequency 4 dB 2 R ef Lo ss & 2 d B 1 dB 3 2 dB 8 & 16 d B Deviation from Nominal Atten (dB) 1.00 1.8 1.6 0.00 VSWR 0.0 0.5 1.0 1.5 2.0 1.4 1.2 -1.00 -2.00 Fre que ncy (GHz ) 1 0.0 0.5 1.0 1.5 2.0 Fre que ncy (GHz ) RF2 VSWR vs. Frequency 8 dB 2 1.8 16 d B R ef Lo ss 3 2 d B 2 d B & 4 dB 1 dB Lead-Free, CR-13 Ceramic Package V SW R 1.6 1.4 1.2 1 0.0 0.5 1.0 1.5 2.0 Frequency (GHz) 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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