AT-107-PIN Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz Features Rev. V9 Functional Schematic Attenuation: 0.5 dB steps to 31.5 dB Temperature Stability: 0.18 dB from -55C to +85C Typical Low DC Power Consumption Hermetic Surface Mount Package Integral TTL Driver 50 Ohm Nominal Impedance Lead-Free CR-13 Package 260C Reflow Compatible RoHS* Compliant RF1 PIN 24 PIN 1 GND 16 dB GND GND GND GND 8 dB C16 GND C8 GND 4 dB Vee (-5V to -8V) GND Vcc (+5V) GND 2 dB GND C4 C2 GND 1 dB C1 Description GND Orientation Mark C0.5 M/A-COM's AT-107-PIN is a GaAs FET 6-bit digital attenuator with a 0.5 dB minimum step size and 31.5 dB total attenuation. This attenuator and integral TTL driver is in a hermetically sealed ceramic 24lead surface mount package. The AT-107-PIN is ideally suited for use where accuracy, fast switching, very 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. Environmental screening is available. Contact the factory for information. PIN 12 GND Package AT-107-PIN Bulk Packaging AT-107-TB Sample Test Board RF2 PIN 13 Pin Configuration Pin No. Function Pin No. Function 1 GND 13 RF2 2 GND 14 GND 3 GND 15 GND 4 C16 16 GND 5 C8 17 GND 6 Vee (-5V to -8V) 18 GND 7 Vcc (+5V) 19 GND 8 C4 20 GND 9 C2 21 GND 10 C1 22 GND 11 C0.5 23 GND 12 GND 24 RF1 Ordering Information Part Number GND 0.5 dB Note: Reference Application Note M513 for reel size information. The metal bottom of the case must be connected to RF and DC ground. 1 * Restrictions on Hazardous Substances, European Union Directive 2011/65/EU. M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support AT-107-PIN Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V9 Electrical Specifications: TA = -55C to +85C 1 Parameter Test Conditions Frequency Units Min Typ Max Reference Insertion Loss -- DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz dB dB dB -- -- -- -- -- -- 3.2 3.6 4.0 Attenuation Accuracy 2 Any Single Bit DC - 1.0 GHz DC - 2.0 GHz DC - 1.0 GHz Any Combination of Bits (0.15 +3% of atten. setting in dB) dB (0.2 +3% of atten. setting in dB) dB (0.2 +3% of atten. setting in dB) dB or 0.4 dB, whichever is greater (0.2 +3% of atten. setting in dB) dB or 0.4 dB, whichever is greater DC - 2.0 GHz VSWR -- DC - 2.0 GHz Ratio -- -- 1.8:1 Trise, Tfall 10% to 90% -- ns -- 9 -- Ton, Toff 50% Control to 90/10% RF -- ns -- 45 -- Transients In-Band (peak-peak) -- mV -- 40 -- 1 dB Compression Input Power Input Power 0.05 GHz 0.5 - 2.0 GHz dBm dBm -- -- +21 +29 -- -- Input IP3 For two-tone Input Power Up to +5 dBm 0.05 GHz 0.5 - 2.0 GHz dBm dBm -- -- +35 +48 -- -- Input IP2 For two-tone Input Power Up to +5 dBm 0.05 GHz 0.5 - 2.0 GHz dBm dBm -- -- +45 +79 -- -- Vcc -- -- V 4.5 5.0 5.5 Vee -- -- V -8.0 -- -5.0 Icc Vcc = 4.5 to 5.5V Vctl = 0 to 0.8V, or Vcc - 2.1V to Vcc -- mA -- -- 6.0 Iee Vee = -5.0 to -8.0V -- mA -- -- 1.0 Vctl Vctl Logic 0 (TTL) Logic 1 (TTL) -- -- V V 0.0 2.0 -- -- 0.8 5.0 Input Leakage Current (Low) 0 to 0.8V -- A -- -- 1.0 Input Leakage Current (High) 2.0 to 5.0V -- A -- -- 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 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support AT-107-PIN Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V9 Recommended PCB Configuration Absolute Maximum Ratings 3,4 Parameter Absolute Maximum Max Input Power 0.05 GHz 0.5 - 2.0 GHz +27 dBm +34 dBm VCC -0.5V VCC +7.0V VEE -8.5V VEE +0.5V VCC - VEE -0.5V VCC - VEE 14.5V Vin5 -0.5V Vin VCC + 0.5V Operating Temperature -55C to +125C Storage Temperature -65C to +150C 3. 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. 4. 5. Truth Table (Digital Attenuator) Control Inputs Handling Procedures C6 C5 C4 C3 C2 C1 Attenuation Please observe the following precautions to avoid damage: 0 0 0 0 0 0 Reference 0 0 0 0 0 1 0.5 dB Static Sensitivity 0 0 0 0 1 0 1 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 0 2 dB 0 0 1 0 0 0 4 dB 0 1 0 0 0 0 8 dB 1 0 0 0 0 0 16 dB 1 1 1 1 1 1 31.5 dB Typical Performance Curves 0 = TTL Low; 1 = TTL High Insertion Loss vs. Frequency - 55 C Insertion Loss (dB) 5.0 4.0 3.0 2.0 1.0 4 dB 2 dB 0 .5 d B 0.40 0.20 0.00 -0.20 -0.40 -0.60 0.0 0.0 3 1 dB 0.60 (dB) + 2 5 C Deviation from Nominal Atten + 8 5 C Attenuation Accuracy vs. Frequency 0.5 1.0 Fre que ncy (GHz ) 1.5 2.0 0.0 0.5 1.0 Fre que ncy (GHz ) 1.5 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support 2.0 AT-107-PIN Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V9 Typical Performance Curves RF1 VSWR vs. Frequency Attenuation Accuracy vs. Frequency 16 d B 3 1.5 d B 1 dB 4 dB 8 & 16 d B R ef Lo ss & 0 .5 d B 2 1.8 VSWR 0.40 (dB) Deviation from Nominal Atten 8 dB 0.80 0.00 -0.40 1.6 1.4 1.2 1 0.0 -0.80 0.0 0.5 1.0 Fre que ncy (GHz ) 1.5 2.0 1.0 1.5 2.0 Fre que ncy (GHz ) Lead-Free, CR-13 Ceramic Package RF2 VSWR vs. Frequency 1 & 2 dB 4 dB 0.5 8 dB 16 d B R ef Lo ss & 0 .5 d B 2 VSWR 1.8 1.6 1.4 1.2 1 0.0 0.5 1.0 Frequency (GHz) 1.5 2.0 Reference Application Note M538 for lead-free solder reflow recommendations. 4 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information. For further information and support please visit: https://www.macom.com/support AT-107-PIN Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V9 M/A-COM Technology Solutions Inc. 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