High IIP3 PIN Diode Variable Attenuator 0.80-1.0 GHz MA4VAT904-1061T V2 Features • • • • • • 1.0 dB Insertion Loss, Typical 12 dB Return Loss, Typical 25 dB Attenuation, Typical 45 dBm IIP3, Typical ( 1MHz Offset, @ +0dBm Pinc ) SOIC-8 Surface Mount Package RoHs Compliant Extra Features • Covers the following Bands: • GSM • AMPS • Usable Bandwidth: 0.60 GHz to 1.20 GHz • 1.5 dB Insertion Loss, Typical • 1.8:1 VSWR, Typical • 18.5 dB Attenuation, Typical SOIC-8 PIN Configuration (Topview) PIN Function Description and Applications 1 DC1 M/A-COM’s MA4VAT904-1061T is a HMIC PIN Diode Variable Attenuator which utilizes an integrated 90 degree 3dB hybrid with a pair of Silicon PIN Diodes to perform the required attenuation function as D.C. Voltage (Current) is applied. 2 GND 3 GND 4 RFin/out Symetrical as RF Input/Ouput 5 RFout/in Symetrical as RF Input/Ouput 6 GND 7 GND 8 DC2 This device operates from 0 to 1.9 Volts at 1.89 mA typical control current for maximum attenuation. The user can add external biasing resistors to the bias ports for higher voltage requirements as required. M/A-COM’s MA4VAT904-1061T PIN Diode Variable Attenuator is designed for AGC Circuit Applications requiring: • Lower Insertion Loss • Lower distortion through attenuation • Larger dynamic range for wide spread spectrum applications Comments Absolute Maximum Ratings @ +25 °C Parameter Maximum Ratings Operating Temperature -40 °C to +85 °C Storage Temperature -65 °C to +150 °C Junction Temperature +175 °C RF C.W. Incident Power +33 dBm C.W. Reversed Current @ -30 V 50nA Control Current 50 mA per Diode Notes: 1. All the above values are at +25 °C, unless otherwise noted. 2. Exceeding these limits may cause permanent damage. 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. High IIP3 PIN Diode Variable Attenuator 0.80-1.0 GHz MA4VAT904-1061T V2 Electrical Specifications @ +25 °C Parameter Frequency Band Unit Min Typ Max 0.80 GHz—1.00 GHz dB - 1.0 1.2 Input Return Loss dB 11 12 - Output Return Loss dB 11 12 - P1dB dBm 30 - - Input IP3 dBm 45 49 - Control Voltage V - 0 V @ OuA - dB 18.5 24 - Input Return Loss @ Max Attenuation dB 15 21 - Output Return Loss @ Max Attenuation dB 15 21 - Input IP3 dBm 36 39 - Control Voltage @ Max Attenuation V - 1.9 V @ 1.89 mA - No DC Bias RF Parameter Insertion Loss DC Bias RF Parameter Maximum Attenuation 0.80 GHz—1.00 GHz Typical RF Performance Over Industry Designated RF Frequency Bands Band AMPS GSM Freq I. Loss Att. R. Loss IIP3 Phase -Relative- (MHz) (dB) (dB) (dB) (dBm) (Degree) RX 824-849 0.9 22 12 45 -15° TX 869-894 0.9 22 12 45 RX 880-915 1.2 20 11 45 TX 925-960 1.2 20 11 45 -20° Notes: 1. All are typical values only. 2. Relative phase is the measured Insertion Phase difference between Insertion Loss and 15 dB Attenuation. (Please refer to the plots below) 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. High IIP3 PIN Diode Variable Attenuator 0.80-1.0 GHz MA4VAT904-1061T V2 Plots of Typical RF Characteristics @ +25 °C Typical Insertion Loss & Attenuation Plot Typical Attenuation vs Voltage Plot MA4VAT904-1061 MA4VAT904-1061 Attenuation vs Control Voltage Typical Attenuation 0 0 -5 Attenuation (dB) Attenuation dB) -5 -10 -15 -20 -25 -30 0.600 0.700 0.800 0.900 1.000 1.100 -10 -15 -20 -25 1.200 -30 Frequency (GHz) 0 0V/0mA 0.77V/0.28mA 0.93V/0.48mA 1.53V/1.28mA 1.77V/1.62mA 1.89V/1.80mA 0.5 1 1.5 2 2.5 Bias Voltage (V) 1.27V/0.93mA 800MHz Typical Return Loss @ All Attenuation Levels Plot 900MHz 1000MHz Typical IIP3 vs Attenuation Plot MA4VAT904-1061 MA4VAT904-1061 Typical Input Return Loss Typical IP3 vs Bias Voltage @900MHz (1MHz Offset, +0dBm Pin) 0 70 -5 50 -15 IP3 (dBm) Return Loss dB) 60 -10 -20 40 30 20 -25 10 -30 0.600 0.700 0.800 0.900 1.000 1.100 1.200 0 0.0 Frequency (GHz) 0V/0mA 0.77V/0.28mA 0.93V/0.48mA 1.27V/0.93mA 1.53V/1.28mA 1.77V/1.62mA 0.5 1.0 1.5 2.0 2.5 Bias Voltage (V) 1.89V/1.80mA Typical Relative Phase Shift Per Attenuation (Voltage) Plot MA4VAT904-1061 Relative Phase vs Control Voltage For Reference ONLY: • Insertion Loss 90 • • • • Relative Phase (Degree)) 70 50 30 10 -10 = 0.00 V @ 0.00 mA 5dB Attenuation = 0.94 V @ 0.49 mA 10dB Attenuation = 1.26 V @ 0.93 mA 15dB Attenuation = 1.50 V @ 1.22 mA 20dB Anttenuation = 1.77V @ 1.60 mA -30 -50 -70 -90 0 0.5 1 1.5 2 2.5 Bias Voltage (V) 800MHz 900MHz 1000MHz 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. High IIP3 PIN Diode Variable Attenuator 0.80-1.0 GHz MA4VAT904-1061T V2 Package PIN Designation, External Components, and Equivalent Circuit Cbias RF I N/OUT Lb ia s C bl o ck Control Curren t Rbias C bl o ck Lb ia s Cbias RF OUT/ IN External Bias Components Rbias= 680 Ohms ( 1.66 V, @1.50 mA ) Lbias= 150 nH Cbias =100 pF Cblock =100 pF 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.