AT90-1107 Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-4.0 GHz Features • • • • • • • • Attenuation: 0.5 dB Steps to 31.5 dB Single Positive Supply Contains internal DC to DC converter Low DC Power Consumption Small Footprint, JEDEC Package Integral TTL Driver 50 ohm Impedance CSP-1 Package Rev. V15 Schematic with Off-Chip Components Description M/A-COM's AT90-1107 is a GaAs FET 6-bit digital attenuator with integral TTL driver. Step size is 0.5 dB providing a 31.5 dB total attenuation range. This device is in an PQFN plastic surface mount package. The AT90-1107 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required. For dual supply designs without switching noise, use AT900107. . Ordering Information Pin Configuration3 Pin No. Function Pin No. Function 1 C8 17 NC 2 C4 18 NC 3 C2 19 Vcc 4 C1 20 NC 5 C0.5 21 Cp 6 C16 22 NC 7 GND 23 Cp 8 NC 24 NC 9 NC 25 VEE2 Part Number Package AT90-1107 Bulk Packaging AT90-1107TR 1000 piece reel 10 NC1 26 GND AT90-1107-TB Sample Test Board 11 GND 27 RF2 12 RF1 28 GND 13 GND 29 NC1 14 NC 30 VEE2 15 NC 31 NC 16 NC 32 Vcc Note: Reference Application Note M513 for reel size information. 1. Pins 10 and 29 must be isolated. 2. VEE is produced internally and requires a .1 µF 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. AT90-1107 Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-4.0 GHz Rev. V15 Electrical Specifications: TA = +25°C Parameter Test Conditions Frequency Units Min Typ Max Insertion Loss — DC - 4.0 GHz dB — 4.5 5.1 Attenuation Accuracy Individual Bits 0.5-1-2-4-8-16 dB Any Combination of Bits 1 to 31.5 dB DC - 4.0 GHz DC - 4.0 GHz dB dB — — — — ±(.3 +7% of atten setting) ±(.5 +8% of atten setting) VSWR Full Range DC - 4.0 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 — — 1 dB Compression — — 50 MHz 0.5 - 4.0 GHz dBm dBm — — +21 +24 — — Input IP3 Two-tone inputs up to +5 dBm 50 MHz 0.5-4.0 GHz dBm dBm — — +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 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 — 15 — Icc 4 Turn-on Current 4. 5. 5 During turn-on, the device requires an initial “Turn-on Current”. Once operational, Icc will drop to the specified levels. The DC-DC converter is guaranteed to start in 100 µs as long as the power supplies can provide a minimum of 100 mA “Turn-on Current”. Recommended PCB Configuration9 Absolute Maximum Ratings6,7 6. 7. 8. Parameter Absolute Maximum Max. Input Power 0.05 GHz 0.5 - 4.0 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 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. 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. AT90-1107 Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-4.0 GHz Rev. V15 Handling Procedures Please observe the following precautions to avoid damage: Truth Table (Digital Attenuator) C16 C8 C4 C2 C1 C0. Attenuation Static Sensitivity 0 0 0 0 0 0 Loss, Reference 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 0 0 1 0.5 dB 0 0 0 0 1 0 1.0 dB 0 0 0 1 0 0 2.0 dB 0 0 1 0 0 0 4.0 dB 0 1 0 0 0 0 8.0 dB 1 0 0 0 0 0 16.0 dB 1 1 1 1 1 1 31.5 dB 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 VSWR @ Insertion Loss 2.2 5.0 1.9 VSWR Loss (dB) I np ut 6.0 4.0 3.0 1.6 1.3 2.0 0 1000 2000 3000 1.0 4000 0 1000 Fre que ncy (MHz ) A ttenua tio n Erro r (dB) 0.2 0.0 -0.2 -0.4 1000 3000 4000 3000 4000 Attenuation Error, 1 dB Bit 0.4 0 2000 Fre que ncy (MHz ) Attenuation Error, 0.5 dB Bit Attenuation Error (dB) Out p ut 2000 Fre que ncy (MHz ) 3000 4000 0.4 0.2 0.0 -0.2 -0.4 0 1000 2000 Frequency (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. AT90-1107 Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-4.0 GHz Rev. V15 Typical Performance Curves Attenuation Error, 4 dB Bit 0.4 A ttenua tio n Erro r (dB) A ttenua tio n Erro r (dB) Attenuation Error, 2 dB Bit 0.2 0.0 -0.2 -0.4 0 1000 2000 3000 0.4 0.2 0.0 -0.2 -0.4 0 4000 1000 Attenuation Error, 8 dB Bit 4000 3000 4000 Attenuation Error, 16 dB Bit 0.8 Attenuation Error (dB) 0.8 0.4 0.0 -0.4 -0.8 0 1000 2000 3000 0.4 0.0 -0.4 -0.8 4000 0 1000 Frequency (MHz) 2000 Fre que ncy (MHz ) Attenuation Error, Max. Attenuation VSWR, 0.5 dB Bit Inp ut 1.0 Out p ut 1.8 1.6 0.0 VSWR A ttenua tio n Erro r (dB) 3000 Frequency (MHz) Frequency (MHz) Attenuation Error (dB) 2000 -1.0 1.4 1.2 -2.0 0 1000 2000 Frequency (MHz) 3000 4000 1.0 0 1000 2000 3000 4000 Freque 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. AT90-1107 Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-4.0 GHz Rev. V15 Typical Performance Curves VSWR, 2 dB Bit VSWR, 1 dB Bit Out p ut I np ut 1.8 1.6 1.6 VSWR VSWR Inp ut 1.8 1.4 1.2 Out p ut 1.4 1.2 1.0 0 1000 2000 3000 1.0 4000 0 1000 Fre que ncy (MHz ) 2000 3000 4000 Frequency (MHz ) VSWR, 4 dB Bit VSWR, 8 dB Bit I np ut Inp ut O ut p ut O ut p ut 1.8 1.6 1.6 VSWR VSWR 1.4 1.2 1.4 1.2 1.0 1.0 0 1000 2000 3000 0 4000 1000 2000 3000 4000 Fre que ncy (MHz ) Fre qu e ncy (MHz ) VSWR, 16 dB Bit VSWR, Max. Attenuation Inp ut Out p ut Inp ut 1.8 Out p ut 1.6 VSWR VSWR 1.6 1.4 1.2 1.0 0 1000 2000 3000 Frequency (MHz) 4000 1.4 1.2 1.0 0 1000 2000 3000 4000 Frequency (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. AT90-1107 Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-4.0 GHz Rev. V15 Typical Performance Curves Typical Attenuation Deviation vs. Temperature for 0.5 dB Bit Typical Attenuation Deviation vs. Temperature for 1 dB Bit 0.4 0.3 0.2 0.15 Attenuation (dB) Attenuation (dB) 0.25 0.1 0.05 0 -0.05 -0.1 0.2 0.1 0 -0.1 -0.2 -0.15 -0.3 -0.2 -0.25 0 0 1000 2000 3000 1000 4000 2000 3000 4000 Frequency (MHz) Frequency (MHz) Typical Attenuation Deviation vs. Temperature for 2 dB Bit Room Ho t 0.3 0.25 0.2 0.15 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 -0.25 A ttenua tio n (dB) Attenuation (dB) C o ld Typical Attenuation Deviation vs. Temperature for 4 dB Bit 0.3 0.25 0.2 0.15 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 -0.25 0 0 1000 2000 3000 1000 Typical Attenuation Deviation vs. Temperature for 8 dB Bit Room Ho t A ttenua tio n (dB) Attenuation (dB) C o ld 0.6 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 1000 2000 Frequency (MHz) 4000 Typical Attenuation Deviation vs. Temperature for 16 dB Bit 0.5 0 3000 Frequency (MHz) Frequency (MHz) C o ld 2000 4000 3000 4000 Room Ho t 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 0 1000 2000 3000 4000 Frequency (MHz) 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. AT90-1107 Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-4.0 GHz Rev. V15 Typical Performance Curves Insertion Loss vs. Temperature Typical Attenuation Deviation vs. Temperature at Maximum Attenuation C o ld 0.5 Room Ho t 5.0 4.5 Insertion Loss (dB) Attenuation (dB) 0 -0.5 -1 -1.5 -2 -2.5 0 1000 2000 3000 4000 Fre que ncy (MHz ) 4.0 3.5 3.0 2.5 2.0 1.5 0 1000 2000 3000 4000 Fre que ncy (MHz ) CSP-1, 4 x 6 mm, 32-lead PQFN† † Reference Application Note M538 for lead-free solder reflow recommendations. 7 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.