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AD71028JST 데이터시트(PDF) 6 Page - Analog Devices |
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AD71028JST 데이터시트(HTML) 6 Page - Analog Devices |
6 / 20 page AD71028 Rev. 0 | Page 6 of 20 PIN CONFIGURATION AND FUNCTIONAL DESCRIPTIONS NC = NO CONNECT AD71028 TOP VIEW (Not to Scale) DIV2_PA 1 DIV1_PB 2 DIV2_PB 3 NC 4 NC 5 AGND OUTB– OUTB+ AVDD AGND 36 35 34 33 32 DGND 6 DVDD 7 ODVDD 8 NC 9 NC 10 COUT 11 CDATA 12 AVDD OUTA+ OUTA– AGND NC 31 30 29 28 27 NC DOUBLE 26 25 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 Figure 2. 48-Lead Low Profile Quad Flat Pack (LQFP) Table 9. Pin Function Descriptions Pin No. Mnemonic Input/Output Description 1 DIV2_PA OUT CLK27_PA clock (Pin 40) Divided by 1125 2 DIV1_PB OUT PLL_PB Clock (Pin 46) Divided by 512 (DOUBLE = 1) or 1024 (DOUBLE = 0) 3 DIV2_PB OUT CLK27_PB Clock (Pin 41) Divided by 1125 4, 5, 9, 10, 26, 27, 39 NC No Connection 6, 16, 44 DGND Digital Ground 7, 13, 17, 45 DVDD Digital Supply for DSP Core 8 ODVDD Digital Supply for Output Buffers 11 COUT OUT SPI Readback 12 CDATA IN SPI Control Data Input 14 CCLK IN SPI Serial Bit Clock 15 CLATCH IN SPI Control Latch Signal 18 RESETB IN Reset Signal for Both Processors, Active Low 19 SDATA_PA IN Data Input to Processor A 20 BCLK_PA IN Bit Clock Signal for Serial Data Input to Processor A 21 LRCLK_PA IN Left/Right Framing Signal for Data Input to Processor A 22 SDATA_PB IN Data Input to Processor B 23 BCLK_PB IN Bit Clock Signal for Serial Data Input to Processor B 24 LRCLK_PB IN Left/Right Framing Signal for Data Input to Processor B 25 DOUBLE IN Enables Internal Clock Doubler for 12.288 MHz Input (Both Processors) 28, 32, 36 AGND Analog Ground 29 OUTA– OUT Negative Analog Output, Processor A 30 OUTA+ OUT Positive Analog Output, Processor A 31, 33 AVDD Analog Supply 34 OUTB+ OUT Positive Analog Output, Processor B 35 OUTB– OUT Negative Analog Output, Processor B 37 REFCAP IN Connection Point for 10 µF VREF Filter Capacitor 38 FILTCAP IN Connection for Noise Reduction Capacitor |
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