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ADC3543 датащи(PDF) 3 Page - Texas Instruments |
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ADC3543 датащи(HTML) 3 Page - Texas Instruments |
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3 / 68 page ![]() 5 Pin Configuration and Functions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 30 29 28 27 26 25 24 23 22 21 40 39 38 37 36 35 34 33 32 31 PDN/SYNC VREF REFGND REFBUF AVDD CLKP CLKM AVDD VCM RESET D14 D7 D8 D9 D10 DCLK IOGND D11 D12 D13 GND PAD (backside) Figure 5-1. RSB Package 40-Pin WQFN Top View Pin Descriptions PIN I/O DESCRIPTION NAME NO. INPUT/REFERENCE AINM 14 I Negative analog input AINP 13 I Positive analog input REFBUF 4 I 1.2-V external voltage reference input for use with internal reference buffer. Internal 100 kΩ pull-up resistor to AVDD. This pin is also used to configure default operating conditions. REFGND 3 I Reference ground input VCM 9 O Common-mode voltage output for the analog inputs, 0.95 V VREF 2 I External voltage reference input, 1.6 V. CLOCK CLKM 7 I Negative differential sampling clock input for the ADC CLKP 6 I Positive differential sampling clock input for the ADC CONFIGURATION NC 18 - Do not connect PDN/SYNC 1 I Power down, synchronization input. This pin can be configured via the SPI interface. Active high. This pin has an internal 21 kΩ pull-down resistor. RESET 10 I Hardware reset; active high. This pin has an internal 21 kΩ pull-down resistor. SCLK 40 I Serial interface clock input. This pin has an internal 21 kΩ pull-down resistor. www.ti.com ADC3541 SBAS840 – JULY 2020 Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: ADC3541 |
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