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ADF5902 Datasheet(PDF) 1 Page - Analog Devices |
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ADF5902 Datasheet(HTML) 1 Page - Analog Devices |
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1 / 39 page  24 GHz, ISM Band, Multichannel FMCW Radar Transmitter Data Sheet ADF5902 Rev. 0 Document Feedback 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 ©2018 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES 24 GHz to 24.25 GHz VCO (industrial, scientific, and medical (ISM) radio band) 2-channel 24 GHz power amplifier with 8 dBm output Single-ended outputs 2-channel muxed outputs with mute function Programmable output power LO output buffer RF frequency range: 24 GHz to 24.25 GHz Power control detector Auxiliary 8-bit ADC High and low speed FMCW ramp generation 25-bit fixed modulus allows subhertz frequency resolution PFD frequencies up to 110 MHz Normalized phase noise floor of −222 dBc/Hz Programmable charge pump currents ±5°C temperature sensor 4-wire SPI ESD performance HBM: 2000 V CDM: 250 V Qualified for automotive applications APPLICATIONS Automotive radars Industrial radars Microwave radar sensors GENERAL DESCRIPTION The ADF5902 is a 24 GHz transmitter (Tx) monolithic microwave integrated circuit (MMIC) with an on-chip, 24 GHz voltage controlled oscillator (VCO). The VCO features a fractional-N frequency synthesizer with waveform generation capability with programmable grid array (PGA) and dual transmitter channels for radar systems. The on-chip, 24 GHz VCO generates the 24 GHz signal for the two transmitter channels and the local oscillator (LO) output. Each transmitter channel contains a power control circuit. There is also an on-chip temperature sensor. Control of all the on-chip registers is through a simple, 4-wire serial peripheral interface (SPI). The ADF5902 comes in a compact, 32-lead, 5 mm × 5 mm LFCSP package. FUNCTIONAL BLOCK DIAGRAM TXOUT1 TXOUT2 LOOUT VTUNE RSET GND TX_AHI ATEST RF_AHI AHI DVDD VREG C1 C2 MUXOUT VCO_AHI REFIN N DIVIDER VCO CAL R DIVIDER TEMPERATURE SENSOR ADC ÷2 BIAS REGULATOR ADC ADC ADF5902 + PHASE FREQUENCY DETECTOR READBACK CONTROL ADC OUTPUT FREQUENCY COUNTER CHARGE PUMP – CPOUT 32-BIT DATA REGISTER DOUT LE DATA CLK CE THIRD-ORDER FRACTIONAL INTERPOLATOR RAMP GENERATION TX_DATA CP_AHI RDIV NDIV RAMP STATUS DVDD GND FMCW RAMP GENERATION PLL Figure 1. |
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