AT90-1106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz Rev. V13 Functional Schematic Features • • • • • • • • Attenuation: 1 dB Steps to 50 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 Description M/A-COM's AT90-1106 is a GaAs FET 6-bit digital attenuator with integral TTL driver. Step size is 1 dB providing a 50 dB total attenuation range. This device is in a PQFN plastic surface mount package. AT90-1106 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 AT90-0106. Pin Configuration1 Ordering Information Pin No. Function Pin No. Function 1 C16 17 NC 2 C8 18 NC 3 C4 19 +Vcc 4 C2 20 NC 5 C1 21 Cp 6 C32 22 NC 7 GND 23 Cp 8 NC 24 NC 9 NC 25 -Vee3 10 NC2 26 GND Part Number Package AT90-1106 Bulk Packaging AT90-1106TR 1000 piece reel 11 GND 27 RF2 AT90-1106-TB Sample Test Board 12 RF1 28 GND 13 GND 29 NC2 14 NC 30 -Vee3 15 NC 31 NC 16 NC 32 +Vcc Note: Reference Application Note M513 for reel size information. 1. 2. 3. The exposed pad centered on the package bottom must be connected to RF and DC ground. (For PQFN Packages) Pins 10 & 29 must be isolated -Vee is produced internally and requires a .1µF cap to GND. Generated noise is typical of switching DC-DC Converters. 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. AT90-1106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz Rev. V13 Electrical Specifications: TA = 25°C, Z0 = 50Ω Parameter Test Conditions Frequency Units Min Typ Max Insertion Loss — DC - 2.4 GHz dB — 5.5 6.0 Attenuation Accuracy Individual Bits 1-2-4-8-16-32 dB Any Combination of Bits 1 to 50 dB DC - 2.4 GHz DC - 2.4 GHz dB dB — — — — ±(.3 +5% of atten setting) ±(.5 +8% of atten setting) VSWR Full Range DC - 2.4 GHz Ratio — 1.8:1 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 - 2.4 GHz dBm dBm — — +21 +24 — — Input IP3 Two-tone inputs up to +5 dBm 50 MHz 0.5-2.4 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 For guaranteed start-up — mA — — 125 mA — — 1.0 Icc 4 Turn-on Current 5 ΔIcc (Additional Supply Current Per TTL Input Pin) VCC = Max, Vcntrl = VCC - 2.1 V Switching Noise Generated from DC-DC Converter with recommended capacitors 3.5 MHz dBm — -93 — Thermal Resistance θjc — — °C/W — 15 — 4. During turn-on, the device requires an initial “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 can provide a minimum of 100 mA “Turn-on Current”. Recommended PCB Configuration9 Absolute Maximum Ratings6,7 Parameter Absolute Maximum Max. Input Power 0.05 GHz 0.5 - 2.4 GHz +27 dBm +34 dBm VCC -0.5V ≤ VCC ≤ +6.0V Vin 8 -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. AT90-1106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz Rev. V13 Handling Procedures Please observe the following precautions to avoid damage: Truth Table (Digital Attenuator) C32 C16 C8 C4 C2 C1 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 1.0 dB 0 0 0 0 1 0 2.0 dB 0 0 0 1 0 0 4.0 dB 0 0 1 0 0 0 8.0 dB 0 1 0 0 0 0 16.0 dB 1 0 0 0 0 0 32.0 dB 1 1 0 0 1 0 50.0 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 VSWR @ Insertion Loss Insertion Loss 2.2 1.9 5.0 VSW R Loss (dB) Out p ut Inp ut 6.0 4.0 1.6 1.3 1.0 3.0 0 400 800 1200 1600 2000 2400 0 400 Fre que ncy (MHz) 1200 1600 2000 2400 2000 2400 Frequency (MHz) Attenuation Error, 1 dB Bit Attenuation Error, 2 dB Bit 0.2 Attenuation Error (dB) 0.2 Attenuation Error (dB) 800 0.1 0.0 -0.1 -0.2 0.1 0.0 -0.1 0 400 800 1200 1600 Fre que ncy (MHz ) 2000 2400 0 400 800 1200 1600 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. AT90-1106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz Rev. V13 Typical Performance Curves Attenuation Error, 8 dB Bit Attenuation Error, 4 dB Bit A ttenua tio n Erro r (dB) Attenuation Error (dB) 0.4 0.3 0.2 0.1 0.0 0.4 0.3 0.2 0.1 0.0 -0.1 -0.2 -0.1 0 0 400 800 1200 1600 2000 400 2400 1600 2000 1.0 Attenuation Error (dB) 0.6 0.2 -0.2 -0.6 0.6 0.2 -0.2 -0.6 0 400 800 1200 1600 2000 2400 0 400 Fre que ncy (MHz ) 800 1200 1600 2000 2400 Fre que ncy (MHz ) Attenuation Error, Max. Attenuation VSWR, 1 dB Bit Inp ut Out p ut 1.8 2.5 1.6 0.5 VSW R Attenuation Error (dB) 2400 Attenuation Error, 32 dB Bit 1.0 Attenuation Error (dB) 1200 Frequency (MHz) Frequency (MHz) Attenuation Error, 16 dB Bit 800 1.4 1.2 -1.5 1.0 0 -3.5 0 400 800 1200 1600 Fre que ncy (MHz ) 2000 400 800 1200 1600 2000 2400 2400 Frequency (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. AT90-1106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz Rev. V13 Typical Performance Curves VSWR, 4 dB BIt VSWR, 2 dB Bit Inp ut Out put I nput 1.8 Out p ut 1.8 1.6 V SW R VSWR 1.6 1.4 1.4 1.2 1.2 1.0 0 1.0 0 400 800 1200 1600 2000 400 800 2400 1200 1600 2000 2400 Frequency (MHz) Fre que ncy (MHz ) VSWR, 8 dB Bit VSWR, 16 dB Bit Out p ut Inp ut 1.8 I np ut O ut p ut 1.6 1.4 1.4 VSWR VSWR 1.6 1.2 1.2 1.0 0 400 800 1200 1600 2000 2400 1.0 Frequency (MHz) 0 400 800 1200 1600 2000 2400 Fre que ncy (MHz ) VSWR, 32 dB Bit VSWR, Maximum attenuation Inp ut Out p ut 1.60 Inp ut 1.6 V SW R VSWR 1.40 1.20 1.00 Out p ut 1.4 1.2 1.0 0 400 800 1200 1600 Fre quency (MHz ) 2000 2400 0 400 800 1200 1600 2000 2400 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. AT90-1106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz Rev. V13 Typical Performance Curves Maximum IP3 over Temperature Range and Attenuation @ 950 MHz Maximum IP3 over Temperature Range and Attenuation @ 50 MHz 50 40 IP 3 (dBm ) IP 3 (dBm ) 50 30 20 Loss 1 2 4 8 16 32 50 Attenuation (dB) 40 30 20 Loss 1 2 4 8 16 32 50 Attenuation (dB) Maximum IP3 over Temperature Range and Attenuation @ 1900 MHz IP 3 ( d B m ) 50 40 30 20 Loss 1 2 4 8 16 32 50 Attenuation (dB) 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. AT90-1106 Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz Rev. V13 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.