AT20-0107 Digital Attenuator Rev. V7 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz Functional Schematic Features 1 Attenuation: 0.5 dB Steps to 31.5 dB Temperature Stability: 0.18 dB from 40C to +85C Typ. Low DC Power Consumption Surface Mount Package Integral TTL Driver High Intercept Point Low Cost/High Performance Lead-Free CR-13 Package 260C Reflow Compatible RoHS* Compliant Description M/A-COM s AT20-0107 is a GaAs FET 6-bit digital attenuator with a 0.5 dB minimum step size and a 31.5 dB total attenuation. This attenuator and inte- gral TTL driver is in a ceramic 24-lead surface mount package. The AT20-0107 is ideally suited for use where accuracy, fast speed, very low power consumption and low intermodulation products are Pin Configuration required. Typical applications include dynamic range setting in precision receiver circuits and other gain/ Pin No. Function Pin No. Function leveling control circuits. Available with enhanced 1 GND 13 RF2 performance as fully hermetic version. Environmen- tally screenable as P/N AT-107-PIN. 2 GND 14 GND 3 GND 15 GND 4 C16 16 GND 5 C8 17 GND 6 Vee 18 GND Ordering Information 7 Vcc 19 GND 8 C4 20 GND 9 C2 21 GND Part Number Package 10 C1 22 GND AT20-0107-PIN Bulk Packaging 11 C0.5 23 GND AT20-0107-TR 1000 piece reel 12 GND 24 RF1 AT20-0107-TB Sample Test Board The metal bottom of the case must be connected to RF and DC Note: Reference Application Note M513 for reel size ground. 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: AT20-0107 Digital Attenuator Rev. V7 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz 2 Electrical Specifications: T = +25C A Parameter Test Conditions Frequency Units Min Typ Max Insertion Loss DC - 2.0 GHz dB 3.2 3.8 1,3,4 Attenuation Accuracy Any Bit or Combination of DC - 2.0 GHz dB +(.3 +7% of atten.) Bits -(.2 +1% of atten.) VSWR Full Range DC - 2.0 GHz Ratio 1.8:1 Trise, Tfall 10% to 90% ns 50 Ton, Toff 50% Control to 90%/10% ns 150 Transients RF mV 50 In-band (peak to peak) 5 1 dB Compression Input Power 50 MHz dBm +21 Input Power 0.5 - 2.0 GHz dBm +29 5 Input IP Two Tone Inputs up to 50 MHz dBm +35 3 +5 dBm 0.5 - 2.0 GHz dBm +48 5 Input IP Two Tone Inputs up to 50 MHz dBm +45 2 +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 -Iee -Vee = -5.0 to -8.0V mA 1.0 1. Above reference insertion loss. 2. All specifications apply when operated with bias voltages of +5V for V and 5.0 V to 8.0 V for V and 50 impedance at all ports CC EE unless otherwise stated. 3. This attenuator is guaranteed monotonic. 4. For the attenuator to meet the guaranteed specifications, it is necessary to have a DC return on either RF1 or RF2. The DC return can be either a 10K resistor, or an RF choke. 5. V = -5 V for the typical numbers given. EE 6,7 Absolute Maximum Ratings Recommended PCB Configuration Parameter Absolute Maximum Max. Input Power 0.05 GHz +27 dBm 0.5 - 2.0 GHz +34 dBm V -0.5V V +7.0V CC CC V -8.5V V +0.5V EE EE V - V -0.5V V - V 14.5V CC EE CC EE 8 Vin -0.5V Vin V + 0.5V CC Operating Temperature -40C to +125C Storage Temperature -65C to +150C 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 22 2 signal is applied prior to power supply. 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: