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ADF9010 Datasheet(PDF) 1 Page - Analog Devices |
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ADF9010 Datasheet(HTML) 1 Page - Analog Devices |
1 / 28 page 900 MHz ISM Band Analog RF Front End ADF9010 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother 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 ©2008 Analog Devices, Inc. All rights reserved. FEATURES 840 MHz to 960 MHz ISM bands Rx baseband analog low-pass filtering and PGA Integrated RF Tx upconverter Integrated integer-N PLL and VCO Integrated Tx PA preamplifier Differential fully balanced architectures 3.3 V supply Low power mode: <1 mA power-down current Programmable Rx LPF cutoff 330 kHz, 880 kHz, 1.76 MHz, and bypass Rx PGA gain settings: 3 dB to 24 dB in 3 dB steps Low noise BiCMOS technology 48-lead, 7 mm × 7 mm LFCSP APPLICATIONS 900 MHz RFID readers Unlicensed band 900 MHz applications FUNCTIONAL BLOCK DIAGRAM AGND DGND ÷4 24-BIT INPUT SHIFT REGISTER PHASE FREQUENCY DETECTOR PRESCALER P/P + 1 N COUNTER N = BP + A PLL DC OFFSET CORRECTION DC OFFSET CORRECTION TxOUTP TxOUTN TxBBIP TxBBIN TxBBQP TxBBQN CP REFIN SCLK SDATA SLE AVDD DVDD VP MUXOUT RxCM R COUNTER B COUNTER A COUNTER VCM VCM RSET RxINIP RxININ RxBBIP RxBBIN RxBBQP RxBBQN RxINQP RxINQN OVF CEXT1 CEXT2 CEXT3 CEXT4 CT CE ADF9010 LOOUTP LOOUTN QUADRATURE PHASE SPLITTER CHARGE PUMP RXVDD VTUNE Figure 1. GENERAL DESCRIPTION The ADF9010 is a fully integrated RF Tx modulator and Rx analog baseband front end that operates in the frequency range from 840 MHz to 960 MHz. The receive path consists of a fully differential I/Q baseband PGA, low-pass filter, and general signal conditioning before connecting to an Rx ADC for baseband conversion. The Rx LPF gain ranges from 3 dB to 24 dB, programmable in 3 dB steps. The Rx LPF features four programmable modes with cutoff frequencies of 330 kHz, 880 kHz, and 1.76 MHz, or the filter can be bypassed if necessary. The transmit path consists of a fully integrated differential Tx direct I/Q upconverter with a high linearity PA driver amplifier. It converts a baseband I/Q signal to an RF carrier-based signal between 840 MHz and 960 MHz. The highly linear transmit signal path ensures low output distortion. Complete local oscillator (LO) signal generation is integrated on chip, including the integer-N synthesizer and VCO, which generate the required I and Q signals for transmit I/Q upconver- sion. The LO signal is also available at the output to drive an external RF demodulator. Control of all the on-chip registers is via a simple 3-wire serial interface. The device operates with a power supply ranging from 3.15 V to 3.45 V and can be powered down when not in use. |
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Descripción similar - ADF9010 |
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