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| RoHS Compliant Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Features * Attenuation: 1 dB steps to 50 dB * Temperature Stability: 0.18 dB from -40C to +85C Typical * Low DC Power Consumption * Surface Mount Package * Integral TTL Driver * High Intercept Point * Low Cost/High Performance * 50 Ohm Nominal Impedance * Lead-Free CR-13 Package * 260C Reflow Compatible AT20-0106 V7 Functional Schematic Description M/A-COM's 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 package. The AT20-0106 is ideally suited for use where accuracy, fast switching, 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. Environmentally screenable as P/N AT-106-PIN. Pin Configuration Pin No. 1 2 3 4 5 6 7 8 9 Function GND GND GND C32 C16 Vee (-5V to -8V) Vcc (+5V) C8 C4 C2 C1 GND Pin No. 13 14 15 16 17 18 19 20 21 22 23 24 Function RF2 GND GND GND GND GND GND GND GND GND GND RF1 Ordering Information Part Number AT20-0106-PIN AT20-0106-TR AT20-0106-TB 10 11 Package Bulk Packaging 1000 piece reel Sample Test Board 12 The metal bottom of the case must be connected to RF and DC ground. Note: Reference Application Note M513 for reel size information. Note: Die quantity varies. * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 1 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHS Compliant Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Electrical Specifications: TA = 25C1 Parameter Reference Insertion Loss AT20-0106 V7 Test Conditions -- Frequency DC - 0.5 GHz DC - 1.0 GHz DC - 2.0 GHz DC - 2.0 GHz DC - 2.0 GHz DC - 1.5 GHz 0.05 - 0.10 GHz 0.101 - 2.0 GHz -- -- -- 0.05 GHz 0.5 - 2.0 GHz 0.05 GHz 0.5 - 2.0 GHz 0.05 GHz 0.5 - 2.0 GHz -- -- -- Units dB dB dB dB dB dB Ratio Ratio ns ns mV dBm dBm dBm dBm dBm dBm V V mA Min -- -- -- Typ 3.5 3.9 4.2 Max 3.8 4.2 4.6 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) -- 10% to 90% 50% Control to 90/10% RF In-Band (peak-peak) Input Power Input Power For two-tone Input Power Up to +5 dBm For two-tone Input Power Up to +5 dBm -- -- Vcc = 4.5 to 5.5V Vctl = 0 to 0.8V, or Vcc - 2.1V to Vcc Vee = -5.0 to -8.0V (0.3 +4% of atten. setting) (0.4 +4% of atten. setting) (0.5 +5% of atten. setting) -- -- -- -- -- -- -- -- -- -- -- 4.5 -8.0 -- -- -- -- -- 50 +20 +28 +34 +46 +75 +79 5.0 -- -- 2.0:1 1.8:1 50 150 -- -- -- -- -- -- -- 5.5 -5.0 6.0 VSWR Trise, Tfall Ton, Toff Transients 1 dB Compression Input IP3 Input IP2 Vcc Vee Icc Iee -- 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. 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHS Compliant Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Absolute Maximum Ratings 3,4 Parameter Max Input Power 0.5 GHz 0.5 - 2.0 GHz Supply Voltages Vcc Vee Control Voltage 5 Operating Temperature Storage Temperature 3. 4. 5. AT20-0106 V7 Recommended PCB Configuration Absolute Maximum +27 dBm +34 dBm +5.5V -8.5V -0.5V to Vcc +0.5V -40C to +125C -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. Truth Table (Digital Attenuator) Control Inputs C6 0 0 Handling Procedures Please observe the following precautions to avoid damage: C5 0 0 0 0 0 1 0 1 C4 0 0 0 0 1 0 0 1 C3 0 0 0 1 0 0 0 1 C2 0 0 1 0 0 0 0 1 C1 0 1 0 0 0 0 0 1 Attenuation Reference 1 dB 2 dB 4 dB 8 dB 16 dB 32 dB 63 dB 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. 0 0 0 0 1 1 Typical Performance Curves Insertion Loss vs. Frequency + 85 C + 25 C - 55 C 5 0 = TTL Low; 1 = TTL High Attenuation Accuracy vs. Frequency 1 dB 2 dB 4 dB 8 dB Deviation from Nominal Atten (dB) 0.5 1.0 1.5 2.0 0.60 0.40 0.20 0.00 - 0.20 - 0.40 - 0.60 0.0 0.5 1.0 1.5 2.0 4 Insertion Loss (dB) 3 2 1 0 0.0 Frequency (GHz) Frequency (GHz) 3 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHS Compliant Digital Attenuator 50.0 dB, 6-Bit, TTL Driver, DC-2.0 GHz Typical Performance Curves Attenuation Accuracy vs. Frequency Deviation from Nominal Atten (dB) 16 dB 2.00 3 2 dB 4 0 dB 5 0 dB 2 AT20-0106 V7 RF1 VSWR vs. Frequency 4 dB Re f Loss & 2 dB 1 dB 3 2 dB 8 & 16 dB 1.00 1.8 0.00 VSWR 0.0 0.5 1.0 1.5 2.0 1.6 1.4 - 1.00 1.2 - 2.00 Frequency (GHz) 1 0.0 0.5 1.0 1.5 2.0 Frequency (GHz) RF2 VSWR vs. Frequency 8 dB 2 1.8 16 dB Re f Loss & 4 dB 3 2 dB 2 dB 1 dB Lead-Free, CR-13 Ceramic Package VSW R 1.6 1.4 1.2 1 0.0 0.5 1.0 1.5 2.0 Frequency (GHz) Reference Application Note M538 for lead-free solder reflow recommendations. 4 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. |
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