Datenblatt-Suchmaschine für elektronische Bauteile |
|
ADRF6520 Datenblatt(PDF) 1 Page - Analog Devices |
|
ADRF6520 Datenblatt(HTML) 1 Page - Analog Devices |
1 / 29 page Dual Programmable Filters and VGAs for 2 GHz Channel Spacing for µW Radios Data Sheet ADRF6520 Rev. 0 Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2017 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Matched VGAs and programmable filters Maximum gain: 53 dB Continuous gain control range: 60 dB Filter bypass mode I/Q bandwidth ±1 dB gain flatness: >1250 MHz 4-pole Butterworth filter I/Q bandwidth: 36 MHz to 720 MHz RMS detector IMD3: <−55 dBc for 1.5 V p-p composite output HD2, HD3: <−55 dBc for 1.5 V p-p output Noise figure: 10.5 dB at maximum gain NF < 11 dB over 12 dB of VGA2 gain backoff 100 Ω differential input, low impedance output Optional dc output offset correction SPI-programmable filter corners Single 3.3 V supply operation with power-down feature APPLICATIONS Point-to-point and point-to-multipoint radios Baseband IQ receivers Diversity receivers ADC drivers Instrumentation Medical FUNCTIONAL BLOCK DIAGRAM 24 OPP1 23 OPM1 22 COM 21 VGN1 20 VGN2 19 COM 18 OPM2 17 OPP2 1 2 3 4 5 6 7 8 INP1 INM1 COM CFLT1 CFLT2 COM INM2 INP2 ADRF6520 DETECTOR Figure 1 GENERAL DESCRIPTION The ADRF6520 is a matched pair of fully differential low noise and low distortion programmable filters and variable gain amplifiers (VGAs). Each channel is capable of rejecting large, out of band interferers while reliably boosting the wanted signal, thus reducing the bandwidth and resolution requirements on the analog-to- digital converters (ADCs). The excellent matching between channels and their high spurious-free dynamic range over all gain and bandwidth settings make the ADRF6520 ideal for quadrature-based (IQ) communication systems with dense constellations, multiple carriers, and nearby interferers. The filter corners, enable, and dc offset correction loop enable are all programmable via a serial peripheral interface (SPI). The first VGA that precedes the filters offers 30 dB of continuous gain control with a maximum gain of 18 dB and sets a differential input impedance of 100 Ω. The filters provide a four-pole Butterworth response with −1 dB corner frequencies: 36 MHz, 72 MHz, 144 MHz, 288 MHz, 432 MHz, 576 MHz, and 720 MHz. For operation beyond 720 MHz, the filter can be disabled and completely bypassed, thereby extending the −1 dB bandwidth up to 1.25 GHz. A wideband rms detector is available to monitor the signal at the filter inputs. A fixed gain amplifier of 6 dB immediately follows the filter. The postfilter VGA provides 30 dB of continuous gain control with a maximum gain of 12 dB. The output buffers offer an additional 18 dB of gain and provide a differential output impedance of 20 Ω. The output buffers are capable of driving 1.5 V p-p into 100 Ω loads at better than 55 dBc nominal for the third-order intermodulation distortion (IMD3). Independent, built in, dc offset correction loops for each channel can be disabled via the SPI if fully dc- coupled operation is desired. The high-pass corner frequency is determined by external capacitors on the CHP1 and CHP2 pins and the postfilter VGA gain. The ADRF6520 operates from a 3.15 V to 3.45 V supply and consumes a maximum supply current of 425 mA. When fully disabled, it consumes ≤10 mA. The ADRF6520 is fabricated in an advanced silicon-germanium BiCMOS process and is available in a 32-lead, exposed pad LFCSP. Performance is specified over the −40°C to +85°C temperature range. |
Ähnliche Teilenummer - ADRF6520 |
|
Ähnliche Beschreibung - ADRF6520 |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |