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ADS1278HPAP Datasheet(PDF) 6 Page - Texas Instruments |
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ADS1278HPAP Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 56 page  ADS1278-HT SBAS447E – MARCH 2009 – REVISED APRIL 2013 www.ti.com Table 2. HFQ or HKP PIN DESCRIPTIONS (continued) PIN NAME FUNCTION DESCRIPTION PWDN1 Digital input PWDN2 Digital input PWDN3 Digital input PWDN4 Digital input PWDN[8:1] Power-down control for channels 8 through 1. PWDN5 Digital input PWDN6 Digital input PWDN7 Digital input PWDN8 Digital input SCLK Digital input/output Serial clock input, Modulator clock output. SYNC Digital input Synchronize input (all channels). TEST0 Digital input TEST[1:0] Test mode select: 01 = Do not use 00 = Normal operation 10 = Do not use 11 = Test mode TEST1 Digital input Table 3. PAP PIN DESCRIPTIONS PIN NAME NO. FUNCTION DESCRIPTION 6, 43, 54, AGND Analog ground Analog ground; connect to DGND using a single plane. 58, 59 AINP1 3 Analog input AINP2 1 Analog input AINP3 63 Analog input AINP4 61 Analog input AINP[8:1] Positive analog input, channels 8 through 1. AINP5 51 Analog input AINP6 49 Analog input AINP7 47 Analog input AINP8 45 Analog input AINN1 4 Analog input AINN2 2 Analog input AINN3 64 Analog input AINN4 62 Analog input AINN[8:1] Negative analog input, channels 8 through 1. AINN5 52 Analog input AINN6 50 Analog input AINN7 48 Analog input AINN8 46 Analog input AVDD 5, 44, 53, 60 Analog power supply Analog power supply (4.75V to 5.25V). VCOM 55 Analog output AVDD/2 Unbuffered voltage output. VREFN 57 Analog input Negative reference input. VREFP 56 Analog input Positive reference input. CLK 27 Digital input Master clock input (fCLK). CLK input divider control: 1 = 37MHz (High-Speed mode)/otherwise 27MHz CLKDIV 10 Digital input 0 = 13.5MHz (low-power)/5.4MHz (low-speed) DGND 7, 21, 24, 25 Digital ground Digital ground power supply. DIN 12 Digital input Daisy-chain data input. DOUT1 20 Digital output DOUT1 is TDM data output (TDM mode). DOUT2 19 Digital output DOUT3 18 Digital output DOUT4 17 Digital output DOUT[8:1] Data output for channels 8 through 1. 6 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated Product Folder Links: ADS1278-HT |
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