ANALOG DEVICES AD9860/AD9862 handbook
Contents
1. AD 7007 Distorted input 12 5MHz 7 71 LE it AL HSR R a d A LLLA p N Vall hut o db gain x E K 8 E Z5 _ E E L Ei m E E a E E E 3 3 E E E Mi iid la dl hl 120dBFs 16MHz 32MHz www analog HILBERT FILTER 60dBFs SINAD66 8dBFS O B 3th m T TE T L wd ll abah o n Luo o lo d ts ado 120dBFs 8MHz 16MHz Supports Baseband l Q or Image Rejection Down Conversion Receive Architectures Quadrature Down Mixed Signal Front End MxFE Converter AD8347 DECIMATION HILBERT FILTER Q pe t 2 55 Dual Channel Direct IF Receive EN S 7 E gt Architecture R OR g2. ANALOG DEVICES AD9860 and AD9862 April 24 2002 AD9860 2 MxFE for Broadband Communications AD9860 2 FEATURES A Versatile Mixed Signal Front End Processor with Dual Converter Receive and Dual Converter Transmit Paths Receive path includes Dual 10 12 Bit 64 MSPS Sampling A D Converters with Internal or External Independent References Input Buffers Programmable Gain Amplifier PGA Low Pass Decimation Filters and a Digital Hilbert Block Transmit path includes Dual 12 14 bit 128 MSPS D A Converters with Programmable Full Scale Output Current Channel independent Fine Gain and Offset Control Digital Hilbert and Interpolation Filters Digital Tunable Real or Complex Up Converters Internal Clock Distribution Block including Delay Locked Loop based clock multiplier and Timing Generation circuitry allow for single crystal or reference clock operation Programmable Output Clocks SPI compliant port two Programmable Sigma Delta Outputs four Auxiliary Analog outputs and four Auxiliary ADC inputs 2 www analog com VIN A DIGITAL PROCESSING BYPASSABLE DECIMATION amp RX DATA 0 HILBERT FILTER VIN B VIN B VIN B SIG DELTA AUX DAC B SPI SERIAL PORT REGISTERS AUX DAC C Q OSC 1 CLOCK DISTRIBUTION OSC2 CLKOUT1 CLKOUT2 IOUT A Q DIGITAL PROCESSING IOUT A BYPASSABLE TX DATA 0 14 HILBERT FILTER IOUT B MODULATION EU AD9860 62 Dual C
3. gt Tx Path Configured for image Rejection Applications E L B Center 250 MHz D gt D Marker 1 T1 B 41 dBm 209 0956112224 MHz 10 kHz HF pL T dB 10 kHz Um 1 T dBm B 41 a gEglizp24 MHz 141 33 14 dB 860 1 0240481 kHz ae MHz nex Span 50 MHz Simple Analog Interface Between and ADI Quadrature Modulators No Active DC Level Shifting Components Required VpiFF 7 1 0 V and Teo AD8345 V Differential RLC Filter www analog com gt ANALOG 2 D 26 868 MHz Tn G R CI D c 3 El Ei nr c G T C c i k a m LU commer Em Ld uem X RF Att RBH 30 kH 300 ad L AL www analog u d L1 LS D ar Li E 1 LS 1 D EO EY c E EN m Quadrature Modulator Direct Conversion Possible Using AD8349 Un SA H gt 0 4 Z 052 RES 5 o B B A U AD9860 2 MxFE Receive Path l l L J Oo OdBFs _ T Rx without Decimatio OO
4. hannel Mixed Signal Broadband Modem Applications Dual 10 12 bit 64 MSPS ADC and Dual 12 14 bit 128MSPS DAC with 1X 2X or 4X Interpolation Integrated on a single IC Tx Signal Path accepts and processes real or I amp Q signals Digital Hilbert filter facilitates an image rejection architecture when only real data Is available Fs 4 and Fs 8 Digital Real or Complex Modulator Fine Complex Modulator with a 24 bit controlled Numerically Controlled Oscillator Supports Transmit LO suppression techniques with Independent Offset Control and Single Sideband SSB architectures using Independent Fine Gain Control to compensate for System offsets Rx Signal Path supports diversity or I amp Q demodulation applications Digital Decimation Filter can improve receive path performance Hilbert Filter supports Receive Image Reject Architecture Versatile Clock Interface Low Phase Noise Internal DLL Clock Multiplier Programmable registers accessed via SPI compliant Port www analog com ANALOG AD9862 Broadband Wireless Access Modem App MAC RISC Processor Ga Co ra Antenna Forward Error Correction RF IF AD9862 Mixed Signal Modulator Diversity Receive Media Access Control up down converts Front End Tone Mapper Complexity to handle high Channel Sharing Baseband Signal ADCs DACs QAM frequency wireless Address Filtering to from RF frequencies Signal Condi
5. tioning OFDM channel at very high CNR Security WCDMA complicated equalizer beamforming ANALOG 4 www analog com AD9860 2 MxFE Transmit Path a ee KRK ee _ Block E _ lOUT V IOUT IOUT our ao 7 DAC output of OFDM signal using various AD9862 digital processing features 1 0 to 96 MHz spectrum of Real output 2 with 4x Interpolation Block C 3 with Fs 4 Up conversion Block B 4 with Hilbert Filter Block E enabled 5 Fine Tuned Modulation Block D enabled shifted by 6MHz Fig 1 Fig2 o Fig 3 Fig4 0985 O S Er RE K al hla IU Nl ns I HHTHH L m 1811 IBI 2 Im TEE NN LO IBI dul LU L HH M eto dr econ ll wu baez 5 eda dai Block A Block A C Block A B C Block Block ANALOG 5 www analog com gt DEVICES Tx Path Image Rejection for Single or Multi Carrier Applications JL LL LLL 0 Foac 4 FrotF pac 4 Real I Q Single Multi Carrier Interleaved or Non interleaved data x Fio or 8 or Fg c 8 AD8345 46 49 Quadrature Upconverter m or Fyac 8 6 www analog com OSR X Fsvymgoi F Lo M N
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