Os motores de busca de Datasheet de Componentes eletrônicos |
|
ADL5501 Folha de dados(PDF) 1 Page - Analog Devices |
|
ADL5501 Folha de dados(HTML) 1 Page - Analog Devices |
1 / 28 page 50 MHz to 4 GHz TruPwr™ Detector ADL5501 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other 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 www.analog.com Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved. FEATURES True rms response Excellent temperature stability Up to 30 dB input dynamic range at 4 GHz 50 Ω input impedance 1.25 V rms, 15 dBm, maximum input Single-supply operation: 2.7 V to 5.5 V Low power: 3.3 mW at 3 V supply RoHS-compliant APPLICATIONS Measurement of CDMA2000-, W-CDMA-, and QPSK-/QAM- based OFDM, and other complex modulation waveforms RF transmitter or receiver power measurement 5 0.03 0.1 1 –25 –20 –15 –10 –5 0 5 10 15 INPUT (dBm) Figure 1. Output vs. Input Level, Supply 3 V, Frequency 1.9 GHz GENERAL DESCRIPTION The ADL5501 is a mean-responding power detector for use in high frequency receiver and transmitter signal chains from 50 MHz to 4 GHz. It is easy to apply, requiring only a single supply between 2.7 V and 5.5 V and a power supply decoupling capacitor. The input is internally ac-coupled and has a nominal input impedance of 50 Ω. The output is a linear-responding dc voltage with a conversion gain of 6.3 V/V rms at 900 MHz. The ADL5501 is intended for true power measurement of simple and complex waveforms. The device is particularly useful for measuring high crest factor (high peak-to-rms ratio) signals, such as CDMA-, CDMA2000-, W-CDMA-, and QPSK-/QAM- based OFDM waveforms. The on-chip modulation filter provides adequate averaging for most waveforms. The on-chip, 100 Ω series resistance at the output, combined with an external shunt capacitor, creates a low-pass filter response that reduces the residual ripple in the dc output voltage. For more complex waveforms, an external capacitor at the FLTR pin can be used for supplementary signal demodulation. The ADL5501 offers excellent temperature stability across a 30 dB range and near 0 dB measurement error across temperature over the top portion of the dynamic range. In addition to its temperature stability, the ADL5501 offers low process variations that further reduce calibration complexity. The ADL5501 operates from −40°C to +85°C and is available in a small 6-lead SC-70 package. It is fabricated on a proprietary high fT silicon bipolar process. FUNCTIONAL BLOCK DIAGRAM RFIN BUFFER VPOS VRMS COMM ERROR AMP x2 x2 i i TRANS- CONDICTANCE CELLS ADL5501 100Ω FLTR BAND-GAP REFERENCE ENBL INTERNAL FILTER CAPACITOR Figure 2. |
Nº de peça semelhante - ADL5501 |
|
Descrição semelhante - ADL5501 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |