AT20-0106 Digital Attenuator Rev. V10 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Features Functional Schematic Attenuation: 1 dB steps to 50 dB Temperature Stability: 0.18 dB from 40C to RF1 PIN 24 PIN 1 GND +85C Typical 32 dB GND GND Low DC Power Consumption GND GND Surface Mount Package 16 dB C32 GND Integral TTL Driver C16 GND High Intercept Point 8 dB Vee (-5V to -8V) GND Low Cost/High Performance Vcc (+5V) GND 50 Ohm Nominal Impedance 4 dB GND C8 Lead-Free CR-13 Package C4 GND 2 dB 260C Reflow Compatible C2 GND Orientation Mark RoHS* Compliant GND C1 1 dB PIN 12 GND RF2 PIN 13 Description M/A-COMs AT20-0106 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 ceramic 24-lead surface mount pack- Pin Configuration age. The AT20-0106 is ideally suited for use where accuracy, fast switching, low power consumption Pin No. Function Pin No. Function and low intermodulation products are required. Typi- cal applications include dynamic range 1 GND 13 RF2 setting in precision receiver circuits and other gain/ 2 GND 14 GND leveling control circuits. Available with enhanced 3 GND 15 GND performance as fully hermetic version. Environmen- tally screenable as P/N AT-106-PIN. 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 Ordering Information 10 C2 22 GND 11 C1 23 GND Part Number Package 12 GND 24 RF1 AT20-0106-PIN Bulk Packaging The metal bottom of the case must be connected to RF and DC AT20-0106-TR 1000 piece reel ground. AT20-0106-TB Sample Test Board Note: Reference Application Note M513 for reel size information. * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 11 1 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: AT20-0106 Digital Attenuator Rev. V10 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz 1 Electrical Specifications: T = 25C A Parameter Test Conditions Frequency Units Min Typ Max Reference Insertion Loss DC - 0.5 GHz dB 3.5 3.8 DC - 1.0 GHz dB 3.9 4.2 DC - 2.0 GHz dB 4.2 4.6 2 Attenuation Accuracy Any Single Bit DC - 2.0 GHz dB (0.3 +4% of atten. setting) Any Combination of Bits DC - 2.0 GHz dB (0.4 +4% of atten. setting) (For attenuation to 26 dB) Any Combination of Bits DC - 1.5 GHz dB (0.5 +5% of atten. setting) (For attenuation 27 to 50 dB) VSWR 0.05 - 0.10 GHz Ratio 2.0:1 0.101 - 2.0 GHz Ratio 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 0.05 GHz dBm +20 Input Power 0.5 - 2.0 GHz dBm +28 Input IP3 For two-tone Input Power 0.05 GHz dBm +34 Up to +5 dBm 0.5 - 2.0 GHz dBm +46 Input IP2 For two-tone Input Power 0.05 GHz dBm +45 Up to +5 dBm 0.5 - 2.0 GHz dBm +79 Vcc V 4.5 5.0 5.5 Vee V -8.0 -5.0 Icc Vcc = 4.5 to 5.5V mA 6.0 Vctl = 0 to 0.8V, or Vcc 2.1V to Vcc Iee Vee = -5.0 to -8.0V mA 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. 22 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: