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| AT90-1413 Digital Attenuator 15 dB, 4-Bit, TTL Driver, DC-4.0 GHz Features * * * * * * * * Attenuation: 1 dB Steps to 15 dB Single Positive Supply Contains Internal DC to DC Converter Integral TTL Driver 50 Ohm Impedance Test Boards Available Tape and Reel Packaging Available CSP-1 Package Rev. V9 Functional Schematic Description M/A-COM's AT90-1413 is a GaAs FET 4-Bit digital attenuator with integral driver. Step size is 1 dB providing a 15 dB attenuation range. This device is in an PQFN plastic surface mount package. The AT90-1413 is suited for single supply applications where accuracy, fast speed, low power consumption and low costs are required. For dual supply designs without switching noise, use AT90-0413. Pin Configuration Pin No. 1 2 3 4 Function GND C8 C4 C2 C1 GND GND NC NC NC1 GND RF1 GND NC NC NC Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Function NC NC Vcc N/C Cp NC Cp NC Vee2 GND RF2 GND NC1 Vee2 NC Vcc Ordering Information Part Number AT90-1413 AT90-1413TR AT90-1413-TB 5 6 Package Bulk Packaging 1000 piece reel Sample Test Board 7 8 9 10 11 12 13 14 15 16 Note: Reference Application Note M513 for reel size information. 1. Pins 10 & 29 must be isolated. 2. Vee is produced internally and requires a .1 F cap to GND. Generated noise is typical of switching DC-DC Converters. 3. The exposed pad centered on the package bottom must be connected to RF and DC ground. (For PQFN Packages) 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. AT90-1413 Digital Attenuator 15 dB, 4-Bit, TTL Driver, DC-4.0 GHz Electrical Specifications: TA = 25C, Z0 = 50 Parameter Insertion Loss Attenuation Accuracy VSWR Switching Speed 1 dB Compression Input IP3 Vcc VIL VIH lin (Input Leakage Current) Icc4 Turn-on Current 5 Rev. V9 Test Conditions -- Individual Bits or Combination of Bits Full Attenuation Range 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% -- Two-tone Inputs up to +5 dBm -- LOW-level input voltage HIGH-level input voltage Vin = VCC or GND Vcc min to max, Logic "0" or "1" For guaranteed start-up VCC = Max, Vcntrl = VCC - 2.1 V Frequency DC-2.5 GHz DC-4.0 GHz DC-2.5 GHz DC-4.0 GHz DC-2.5 GHz DC-4.0 GHz -- -- 50 MHz 0.5-4.0 GHz 50 MHz 0.5-4.0 GHz -- -- -- -- -- -- -- Units dB dB dB dB Ratio Ratio ns ns dBm dBm dBm dBm V V V uA mA mA mA Min -- -- -- -- -- -- -- -- -- -- -- -- 4.75 0.0 2.0 -1.0 -- -- -- Typ 2.0 2.5 -- -- 1.5:1 1.8:1 75 20 +21 +29 +35 +48 5.0 -- -- -- 6 -- -- Max 2.5 3.0 (0.3+4% of atten setting) (0.3+6% of atten setting) 1.8:1 2.0:1 150 50 -- -- -- -- 5.25 0.8 5.0 1.0 10 125 1.0 Icc (Additional Supply Current Per TTL Input Pin) Switching Noise Generated from DC-DC Converter with recommended capacitors -- 3.5 MHz dBm -- -93 -- Thermal Resistance jc -- C/W -- 15 -- 4. During turn-on, the device requires an initial start up current (Icc) specified as "Turn-on Current". Once operational, Icc will drop to the specified levels. 5. The DC-DC converter is guaranteed to start in 100 s as long as the power supplies have the maximum turn-on current available for startup. Recommended PCB Configuration9 Absolute Maximum Ratings 6,7 Parameter Max. Input Power 0.05 GHz 0.5 - 4.0 GHz VCC Vin 8 Absolute Maximum +27 dBm +34 dBm -0.5V VCC +6.0V -0.5V Vin VCC + 0.5V -40C to +85C -65C to +125C Operating Temperature Storage Temperature 6. Exceeding any one or combination of these limits may cause permanent damage to this device. 7. M/A-COM does not recommend sustained operation near these survivability limits. 8. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. 2 9. Application Note S2083 is available on line at www.macom.com 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. AT90-1413 Digital Attenuator 15 dB, 4-Bit, TTL Driver, DC-4.0 GHz Handling Procedures Please observe the following precautions to avoid damage: Rev. V9 Truth Table (Digital Attenuator) C8 0 0 0 0 1 1 C4 0 0 0 1 0 1 C2 0 0 1 0 0 1 C1 0 1 0 0 0 1 Attenuation Loss, Reference 1.0 dB 2.0 dB 4.0 dB 8.0 dB 15.0 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. Moisture Sensitivity The MSL rating for this part is defined as Level 2 per IPC/JEDEC J-STD-020. Parts shall be stored and/or baked as required for MSL Level 2 parts. 0 = TTL Low; 1 = TTL High Typical Performance Curves Insertion Loss 3.00 VSWR @ Insertion Loss R F In 1.60 R F Out Attenuation (dB) 2.50 1.40 2.00 VSWR 1.20 1.00 0 500 1000 1500 2000 2500 3000 3500 4000 0 500 1000 1500 2000 2500 3000 3500 4000 1.50 1.00 Fre que ncy (MHz ) Fre que ncy (MHz ) Attenuation Error, 1 dB Bit 0.30 0.20 Attenuation Error, 2 dB Bit 0.30 0.20 Attenuation (dB) 0.10 0.00 -0.10 -0.20 -0.30 0 500 1000 1500 2000 2500 3000 3500 4000 Attenuation (dB) 0.10 0.00 -0.10 -0.20 -0.30 0 500 1000 1500 2000 2500 3000 3500 4000 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. AT90-1413 Digital Attenuator 15 dB, 4-Bit, TTL Driver, DC-4.0 GHz Typical Performance Curves Attenuation Error, 4 dB Bit 0.60 Rev. V9 Attenuation Error, 8 dB Bit 0.20 Attenuation (dB) Attenuation (dB) 0.40 0.00 0.20 -0.20 0.00 -0.40 -0.20 0 500 1000 1500 2000 2500 3000 3500 4000 -0.60 0 500 1000 1500 2000 2500 3000 3500 4000 Fre que ncy (MHz ) Fre que ncy (MHz ) Attenuation Error, Max. Attenuation 0.40 VSWR, 1 dB Bit R F In 1.60 R F O ut Attenuation (dB) 0.20 1.40 0.00 VSWR 1.20 0 500 1000 1500 2000 2500 3000 3500 4000 1.00 0 500 1000 1500 2000 2500 3000 3500 4000 -0.20 -0.40 Fre que ncy (MHz ) Fre que ncy (MHz ) VSWR, 2 dB Bit R F In 1.60 R F Out VSWR, 4 dB Bit R F In 1.60 R F O ut 1.40 VSWR 1.40 1.20 VSWR 1.20 0 500 1000 1500 2000 2500 3000 3500 4000 1.00 0 500 1000 1500 2000 2500 3000 3500 4000 1.00 Fre que ncy (MHz ) 4 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. AT90-1413 Digital Attenuator 15 dB, 4-Bit, TTL Driver, DC-4.0 GHz Typical Performance Curves VSWR, 8 dB Bit R F In 1.60 R F Out Rev. V9 VSWR, Maximum Attenuation R F In 1.60 R F Out 1.40 1.40 V SW R VSWR 1.20 1.20 1.00 0 500 1000 1500 2000 2500 3000 3500 4000 1.00 0 500 1000 1500 2000 2500 3000 3500 4000 Fre que ncy (MHz ) Frequency (MHz) CSP-1, 4 x 6 mm, 32-lead PQFN Reference Application Note M538 for lead-free solder reflow recommendations. 5 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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