AT20-0107 MA-COM | Alldatasheet

Document overview

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  • PDF pages: 4

Technical content

Features

  • Attenuation: 0.5 dB Steps to 31.5 dB1
  • Temperature Stability: ±0.18 dB from –40ºC to +85ºC Typ.
  • Low DC Power Consumption
  • Surface Mount Package
  • Integral TTL Driver
  • High Intercept Point
  • Low Cost/High Performance
  • Lead-Free CR-13 Package
  • 260°C 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 required. Typical applications include dynamic range setting in precision receiver circuits and other gain/ leveling control circuits. Available with enhanced performance as fully hermetic version. Environmen- tally screenable as P/N AT-107-PIN.

Ordering Information

AT20-0107-PIN Bulk Packaging AT20-0107-TR 1000 piece reel AT20-0107-TB Sample Test Board Note: Reference Application Note M513 for reel size information. Functional Schematic 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 18 GND

7 Vcc 19 GND

8 C4 20 GND

9 C2 21 GND

10 C1 22 GND

11 C0.5 23 GND

12 GND 24 RF1

  • Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. The metal bottom of the case must be connected to RF and DC ground.

Visit www.macomtech.com for additional data sheets and product information. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V7 AT20-0107 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions is considering for development. Performance is based on target specifications, simulated results, and/or prototype measurements. Commitment to develop is not guaranteed. 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. Commitment to produce in volume is not guaranteed. Electrical Specifications: TA = +25°C2 Parameter Frequency Units Min Typ Max Insertion Loss DC - 2.0 GHz dB — 3.2 3.8 Attenuation Accuracy1,3,4 DC - 2.0 GHz dB — — +(.3 +7% of atten.) -(.2 +1% of atten.) VSWR DC - 2.0 GHz Ratio — — 1.8:1 Trise, Tfall Ton, Toff Transients ns ns mV 150 1 dB Compression 5 50 MHz 0.5 - 2.0 GHz dBm dBm +21 +29 Input IP3 5 50 MHz 0.5 - 2.0 GHz dBm dBm +35 +48 Input IP2 5 50 MHz 0.5 - 2.0 GHz dBm dBm +45 +79 Vcc -Vee V V 4.5 -8.0 5.0 5.5 -5.0 Icc — mA — — 6.0 Test Conditions Any Bit or Combination of Bits Full Range 10% to 90% 50% Control to 90%/10% RF In-band (peak to peak) Input Power Input Power Two Tone Inputs up to +5 dBm Two Tone Inputs up to +5 dBm Vcc = 4.5 to 5.5V -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 CC and –5.0 V to –8.0 V for V EE and 50 Ω impedance at all ports 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 r eturn can be either a 10KΩ resistor, or an RF choke. 5. V EE = -5 V for the typical numbers given. Absolute Maximum Ratings 6,7 Parameter Absolute Maximum Max. Input Power

0.05 GHz

0.5 - 2.0 GHz +27 dBm +34 dBm VCC -0.5V ≤ VCC ≤ +7.0V VCC - VEE -0.5V ≤ VCC - VEE ≤ 14.5V Vin8 -0.5V ≤ Vin ≤ VCC + 0.5V Operating Temperature -40°C to +125°C Storage Temperature -65°C to +150°C VEE -8.5V ≤ VEE ≤ +0.5V 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. Recommended PCB Configuration

Visit www.macomtech.com for additional data sheets and product information. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V7 AT20-0107 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions is considering for development. Performance is based on target specifications, simulated results, and/or prototype measurements. Commitment to develop is not guaranteed. 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. Commitment to produce in volume is not guaranteed. 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 electric ity. Proper ESD control techniques should be used when handling these devices. Truth Table (Digital Attenuator) C16 C8 C4 C2 C1 C0.5 Attenuation 0 0 0 0 0 0 Loss, Reference 0 0 0 0 0 1 0.5 dB 0 0 0 0 1 0 1.0 dB 0 0 0 1 0 0 2.0 dB 0 0 1 0 0 0 4.0 dB 0 1 0 0 0 0 8.0 dB 1 0 0 0 0 0 16.0 dB 1 1 1 1 1 1 31.5 dB 0 = TTL Low; 1 = TTL High Attenuation Accuracy vs. Frequency Typical Performance Curves Insertion Loss vs. Frequency 0 0.5 1 1 .5 2 Frequency (GHz) Loss (dB) -0.6 -0.4 -0.2 0.2 0.4 0.6 0 0.5 1 1 .5 2 Fre qu e n cy (GHz ) Deviation (dB) 1 dB 2 dB 4 dB 0.5 dB RF1 VSWR vs. Frequency Attenuation Accuracy vs. Frequency -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 0 0.5 1 1 .5 2 Fre qu e n cy (GHz ) Deviation (dB) 31 .5 dB8 dB16 d B 1. 2 1. 4 1. 6 1. 8 0 0.5 1 1 .5 2 Fre qu e n cy (GHz ) Deviation (dB) Loss & 0.5 dB 2 dB 1 dB 4 dB 8 & 1 6 dB

Visit www.macomtech.com for additional data sheets and product information. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Digital Attenuator 31.5 dB, 6-Bit, TTL Driver, DC-2.0 GHz Rev. V7 AT20-0107 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions is considering for development. Performance is based on target specifications, simulated results, and/or prototype measurements. Commitment to develop is not guaranteed. 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. Commitment to produce in volume is not guaranteed. RF2 VSWR vs. Frequency Typical Performance Curves 1. 2 1. 4 1. 6 1. 8 00 . 511 . 52 F requency (GHz) Deviation (dB) Loss & 0.5 dB1 & 2 d B 16 d B4 dB 8 dB Lead-Free, CR-13 Ceramic Package† † Reference Application Note M538 for lead-free solder reflow recommendations.