MAAD-007078-000100 Digital Attenuator 31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz Functional Schematic Features • • • • • • • • • • • • Rev. V4 Attenuation: 1.0dB Steps to 31dB Single Positive Supply Contains internal DC to DC converter Low DC Power Consumption Small Footprint, JEDEC Package Integral TTL Driver 50 ohm Impedance Lead-Free CSP-1 Package 100% Matte Tin Plating over Copper Halogen-Free “Green” Mold Compound 260°C Reflow Compatible RoHS* Compliant Version of AT90-1263 Description M/A-COM's MAAD-007078-000100 is a GaAs FET 5-bit digital attenuator with integral TTL driver. Step size is 1.0 dB providing 31 dB total attenuation range. This device is in an FQFP-N plastic surface mount package. The MAAD-007078-000100 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required. For dual supply designs without DC-DC converter noise, use MAATCC0010. Pin Configuration Ordering Information Part Number Package MAAD-007078-000100 Bulk Packaging MAAD-007078-0001TR 1000 piece reel MAAD-007078-0001TB Sample Test Board Note: Reference Application Note M513 for reel size information. 1. 2. * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 3. Pin No. Function Pin No. Function 1 GND 17 NC 2 C16 18 NC 3 C8 19 Vcc 4 C4 20 NC 5 C2 21 CP2 6 C1 22 NC 7 GND 23 CP1 8 NC 24 NC 9 NC 25 Vee2 10 NC1 26 GND 11 GND 27 RF2 12 RF1 28 GND 13 GND 29 NC1 14 NC 30 Vee2 15 NC 31 NC 16 NC 32 Vcc Pins 10 & 29 must be isolated The negative voltage Vee is produced internally and requires a 0.1µF cap to GND. Generated noise is typical of switching DC-DC Converters. 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. MAAD-007078-000100 Digital Attenuator 31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz Rev. V4 Electrical Specifications: TA = 25°C, Z0 = 50Ω Parameter Test Conditions Frequency Units Min Typ Max Insertion Loss — DC - 3.0 GHz dB — 3.5 3.8 Attenuation Accuracy Individual Bits 1-2-4-8-16 dB Any Combination of Bits 1 to 31 dB DC - 3.0 GHz DC - 3.0 GHz dB dB — — — — ±(.3 +5% of atten setting) ±(.5 +7% of atten setting) VSWR Full Range DC - 3.0 GHz Ratio — 2.0:1 2.2:1 Switching Speed 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% — — ns ns — — 75 20 150 50 1 dB Compression — — 50 MHz 0.5 - 3.0 GHz dBm dBm — — +21 +24 — — Input IP3 Two-tone inputs up to +5 dBm 50 MHz 0.5-3.0 GHz dB dB — — +35 +48 — — Vcc — — V 4.75 5.0 5.25 VIL VIH LOW-level input voltage HIGH-level input voltage — — V V 0.0 2.0 — — 0.8 5.0 lin (Input Leakage Current) Vin = VCC or GND — uA -1.0 — 1.0 Vcc min to max, Logic “0” or “1” — mA — 6 10 Turn-on Current5 For guaranteed start-up — mA — — 125 ΔIcc (Additional Supply Current Per TTL Input Pin) VCC = Max, Vcntrl = VCC - 2.1 V — mA — — 1.0 Switching Noise Generated from DC-DC Converter with recommended capacitors 3.5 MHz dBm — -93 — Thermal Resistance θjc — — °C/W — 35 — Icc 4 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 µs as long as the power supplies have the maximum turn-on current available for start up. Recommended PCB Configuration 9 Absolute Maximum Ratings 6,7 Parameter Absolute Maximum Max. Input Power 0.05 GHz 0.5 - 3.0 GHz +27 dBm +34 dBm VCC -0.5V ≤ VCC ≤ +6.0V Vin8 -0.5V ≤ Vin ≤ VCC + 0.5V Operating Temperature -40ºC to +85ºC Storage Temperature -65ºC to +125ºC 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. 9. Application Note S2083 is available on line at www.macom.com 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. MAAD-007078-000100 Digital Attenuator 31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz Rev. V4 Handling Procedures Truth Table (Digital Attenuator) Please observe the following precautions to avoid damage: C16 C8 C4 C2 C1 Attenuation 0 0 0 0 0 Loss, Reference Static Sensitivity 0 0 0 0 1 1.0 dB 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. 0 0 0 1 0 2.0 dB 0 0 1 0 0 4.0 dB 0 1 0 0 0 8.0 dB 1 0 0 0 0 16.0 dB 1 1 1 1 1 31.0 dB 0 = TTL Low; 1 = TTL High 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. Typical Performance Curves VSWR @ Insertion Loss Insertion Loss Inp ut 3.0 2.0 2.00 1.00 1.0 0 1000 2000 3000 0 4000 1000 Fre que ncy (MHz ) 2000 3000 4000 3000 4000 Frequency (MHz) Attenuation Error, 1 dB Bit Attenuation Error, 2 dB Bit 0.3 0.3 0.2 0.2 Error (dB) Error (dB) Out p ut 3.00 V SW R Loss (dB) 4.0 0.1 0 0.1 0 -0.1 -0.1 0 1000 2000 Fre que ncy (MHz ) 3000 4000 0 1000 2000 Fre que ncy (MHz ) 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. MAAD-007078-000100 Digital Attenuator 31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz Rev. V4 Typical Performance Curves Attenuation Error, 8 dB Bit 0.7 0.7 0.5 0.5 Error (dB) Error (dB) Attenuation Error, 4 dB Bit 0.3 0.1 0.3 0.1 -0.1 -0.1 0 1000 2000 3000 4000 0 1000 Fre que ncy (MHz ) Attenuation Error, 16 dB Bit 3000 4000 3000 4000 3000 4000 Attenuation Error, Max. Attenuation 1.5 1.5 0.5 0.5 Error (dB) Error (dB) 2000 Fre que ncy (MHz ) -0.5 -1.5 -0.5 -1.5 0 1000 2000 3000 4000 0 1000 Fre que ncy (MHz ) 2000 Fre que ncy (MHz ) VSWR, 1 dB Bit VSWR, 2 dB Bit O ut p ut Inp ut Inp ut 1.8 Out p ut 1.6 1.6 VSWR VSWR 1.4 1.4 1.2 1.2 1.0 1.0 0 1000 2000 Fre que ncy (MHz ) 3000 4000 0 1000 2000 Fre que ncy (MHz ) 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. MAAD-007078-000100 Digital Attenuator 31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz Rev. V4 Typical Performance Curves VSWR, 4 dB Bit VSWR, 8 dB Bit Inp ut Inp ut Out p ut 1.6 1.4 1.4 O ut p ut VSWR VSWR 1.6 1.2 1.2 1.0 1.0 0 1000 2000 3000 4000 0 1000 Fre que ncy (MHz ) VSWR, 16 dB Bit 3000 4000 VSWR, Maximum Attenuation Inp ut Inp ut Out p ut 1.6 1.6 1.4 1.4 Out p ut VSWR VSW R 2000 Fre que ncy (MHz ) 1.2 1.2 1.0 0 1000 2000 Frequency (MHz) 3000 4000 1.0 0 1000 2000 3000 4000 Fre que ncy (MHz) 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. MAAD-007078-000100 Digital Attenuator 31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz Rev. V4 CSP-1, Lead-Free 4 x 6 mm, 32-lead PQFN† † Reference Application Note M538 for lead-free solder reflow recommendations. 6 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.