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AD9864 Datasheet(PDF) 8 Page - Analog Devices |
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AD9864 Datasheet(HTML) 8 Page - Analog Devices |
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8 / 44 page  AD9864 PIN CONFIGURATION AND FUNCTIONAL DESCRIPTIONS PIN 1 IDENTIFIER TOP VIEW (Not to Scale) AD9864 1 MXOP 36 GNDL 2 MXON 35 FREF 3 GNDF 34 GNDS 4 IF2N 33 SYNCB 5 IF2P 32 GNDH 6 VDDF 31 FS 7 GCP 30 DOUTB 8 GCN 29 DOUTA 9 VDDA 28 CLKOUT 10 GNDA 27 VDDH 11 VREFP 26 VDDD 12 VREFN 25 PE 48 13 42 19 43 18 44 17 45 16 46 15 47 14 41 20 40 21 39 22 38 23 37 24 Figure 2. 48-Lead LFCSP, Backside Paddle Contact Is Connected to Ground Table 5. Pin Function Descriptions—48-Lead Lead Frame Chip Scale Package (LFCSP) Pin No. Mnemonic Description 1 MXOP Mixer Output, Positive 2 MXON Mixer Output, Negative 3 GNDF Ground for Front End of ADC 4 IF2N Second IF Input (to ADC), Negative 5 IF2P Second IF Input (to ADC), Positive 6 VDDF Positive Supply for Front End of ADC 7 GCP Filter Capacitor for ADC Full-Scale Control 8 GCN Full-Scale Control Ground 9 VDDA Positive Supply for ADC Back End 10 GNDA Ground for ADC Back End 11 VREFP Voltage Reference, Positive 12 VREFN Voltage Reference, Negative 13 RREF Reference Resistor: Requires 100 k Ω to GNDA 14 VDDQ Positive Supply for Clock Synthesizer 15 IOUTC Clock Synth Charge Pump Out Current 16 GNDQ Ground for Clock Synthesizer Charge Pump 17 VDDC Positive Supply for Clock Synthesizer 18 GNDC Ground for Clock Synthesizer 19 CLKP Sampling Clock Input/Clock VCO Tank, Positive 20 CLKN Sampling Clock Input/Clock VCO Tank, Negative 21 GNDS Substrate Ground 22 GNDD Ground for Digital Functions 23 PC Clock Input for SPI Port 24 PD Data I/O for SPI Port 25 PE Enable Input for SPI Port 26 VDDD Positive Supply for Internal Digital Pin No. Mnemonic Description 27 VDDH Positive Supply for Digital Interface 28 CLKOUT Clock Output for SSI Port 29 DOUTA Data Output for SSI Port 30 DOUTB Data Output for SSI Port (Inverted) or SPI Port 31 FS Frame Sync for SSI Port 32 GNDH Ground for Digital Interface 33 SYNCB Resets SSI and DecimatorCounters; Active Low 34 GNDS Substrate Ground 35 FREF Reference Frequency Input for Both Synthesizers 36 GNDL Ground for LO Synthesizer 37 GNDP Ground for LO Synthesizer Charge Pump 38 IOUTL LO Synthesizer Charge Pump Out Current 39 VDDP Positive Supply for LO Synthesizer Charge Pump 40 VDDL Postive Supply for LO Synthesizer 41 CXVM External Filter Capacitor; DC Output of LNA 42 LON LO Input to Mixer and LO Synthesizer, Negative 43 LOP LO Input to Mixer and LO Synthesizer, Positive 44 CXVL External Bypass Capacitor for LNA Power Supply 45 GNDI Ground for Mixer and LNA 46 CXIF External Capacitor for Mixer V-I Converter Bias 47 IFIN First IF Input (to LNA) 48 VDDI Positive Supply for LNA and Mixer Rev. 0 | Page 8 of 44 |
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