AT-106-PIN Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Features Rev. V10 Functional Schematic Attenuation: 1 dB steps to 50 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 32 dB GND GND GND GND 16 dB C32 GND C16 GND 8 dB Vee (-5V to -8V) GND Vcc (+5V) GND 4 dB GND C8 C4 Description GND 2 dB C2 M/A-COM's AT-106-PIN is a GaAs FET 6-bit digital attenuator with a 1 dB minimum step size and 50 dB total attenuation. This attenuator and integral TTL driver is in a hermetically sealed ceramic 24-lead surface mount package. The AT-106-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. Package AT-106-PIN Bulk Packaging AT-106-TR 1000 piece reel AT-106-TB Sample Test Board GND 1 dB PIN 12 GND RF2 PIN 13 Pin Configuration Pin No. Function Pin No. Function 1 GND 13 RF2 2 GND 14 GND 3 GND 15 GND 4 C32 16 GND 5 C16 17 GND 6 Vee (-5V to -8V) 18 GND 7 Vcc (+5V) 19 GND 8 C8 20 GND 9 C4 21 GND 10 C2 22 GND 11 C1 23 GND 12 GND 24 RF1 Ordering Information Part Number GND Orientation Mark C1 The metal bottom of the case must be connected to RF and DC ground. Note: Reference Application Note M513 for reel size information. 1 * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 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-106-PIN Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V10 Electrical Specifications: (From -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 -- -- -- 3.5 3.9 4.2 4.0 4.4 4.8 Attenuation Accuracy 2 Any Single Bit Any Combination of Bits (For attenuation to 26 dB) Any Combination of Bits (For attenuation 27 to 50 dB) DC - 2.0 GHz DC - 2.0 GHz dB dB (0.3 +4% of atten. setting) (0.4 +4% of atten. setting) DC - 1.5 GHz dB (0.5 +5% of atten. setting) VSWR -- 0.05 - 0.10 GHz 0.101 - 2.0 GHz Ratio Ratio -- -- -- -- 2.0:1 1.8:1 Trise, Tfall 10% to 90% -- ns -- -- 50 Ton, Toff 50% Control to 90/10% RF -- ns -- -- 150 Transients In-Band (peak-peak) -- mV -- 50 -- 1 dB Compression Input Power Input Power 0.05 GHz 0.5 - 2.0 GHz dBm dBm -- -- +20 +28 -- -- Input IP3 For two-tone Input Power Up to +5 dBm 0.05 GHz 0.5 - 2.0 GHz dBm dBm -- -- +34 +46 -- -- 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-106-PIN Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V10 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 3. 4. 5. Vin -0.5V Vin VCC + 0.5V Operating Temperature -55C to +125C Storage Temperature -65C to +150C 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 Control Inputs Handling Procedures Please observe the following precautions to avoid damage: 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. Typical Performance Curves + 2 5 C - 55 C Insertion Loss (dB) 4 3 2 1 0 3 0.5 C5 C4 C3 C2 C1 Attenuation 0 0 0 0 0 0 Reference 0 0 0 0 0 1 1 dB 0 0 0 0 1 0 2 dB 0 0 0 1 0 0 4 dB 0 0 1 0 0 0 8 dB 0 1 0 0 0 0 16 dB 1 0 0 0 0 0 32 dB 1 1 1 1 1 1 63 dB Attenuation Accuracy vs. Frequency 5 0.0 C6 0=TTL Low, 1=TTL High Insertion Loss vs. Frequency + 8 5 C Truth Table (Digital Attenuator) 1.0 F re que nc y ( G H z) 1.5 2.0 Deviation from Nominal Atten (dB) 5 1 dB 2 dB 4 dB 8 dB 0.60 0.40 0.20 0.00 -0.20 -0.40 -0.60 0.0 0.5 1.0 1.5 Fre que ncy (GHz ) 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-106-PIN Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V10 Typical Performance Curves RF1 VSWR vs. Frequency Attenuation Accuracy vs. Frequency 3 2 dB 4 0 dB 50 d B R ef Lo ss & 2 d B 1 dB 3 2 dB 8 & 16 d B 2 2.00 1.8 1.00 VSWR Deviation from Nominal Atten (dB) 4 dB 16 d B 0.00 1.6 1.4 1.2 -1.00 1 0.0 -2.00 0.0 0.5 1.0 1.5 2.0 0.5 1.0 1.5 2.0 Fre que ncy (GHz ) Fre que ncy (GHz ) Lead-Free, CR-13 Ceramic Package RF2 VSWR vs. Frequency 8 dB 16 d B 2 R ef Lo ss 3 2 d B 2 d B & 4 dB 1 dB VSWR 1.8 1.6 1.4 1.2 1 0.0 0.5 1.0 1.5 2.0 Frequency (GHz) 4 Reference Application Note M538 for lead-free solder reflow recommendations. 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-106-PIN Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V10 M/A-COM Technology Solutions Inc. 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