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ADC3541 Datasheet(PDF) 46 Page - Texas Instruments |
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ADC3541 Datasheet(HTML) 46 Page - Texas Instruments |
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46 / 68 page ![]() Figure 7-45. Register 0x0A/B/C 7 6 5 4 3 2 1 0 CMOS OB DIS [23:0] R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 Table 7-19. Register 0x0A/B/C Field Descriptions Bit Field Type Reset Description 7:0 CMOS OB DIS [23:0] R/W 0 These register bits power down the individual CMOS output buffers. See Table 7-20 for the actual bit to pin mapping. Unused pins should be powered down (ie set to 1) for maximum power savings. There is a separate control to enable the DCLKIN buffer in register 0x1F (D6) and 0x18 (D4). DCLK output buffer is powered down using register 0x1F (D4). NOTE: When using serial CMOS interface the CMOS output buffer (D3/DB1) has to be powered down because it shares the pin with DCLKIN. 0: Output buffer enabled 1: Output buffer powered down Table 7-20. Output buffer enable bit mapping vs output interface mode ADDRESS (HEX) BIT PIN NAME SDR CMOS DDR CMOS SCMOS 2-w SCMOS 1-w 0x0A D7 D7 D7 D7 - - D6 - - - - - D5 - - - - - D4 D4 D4 - - - D3 D3 D3 - DCLKIN DCLKIN D2 D2 D2 - - - D1 D1 D1 - - - D0 D0 D0 - - - Register setting 0x60 0x7F 0xFF 0xFF 0x0B D7 D13 D13 - - - D6 D14 D14 - - - D5 D15 D15 - - - D4 FCLK - - FCLK FCLK D3 - - - - - D2 - - - - - D1 - - - - - D0 D8 D8 D8 - - Register setting 0x1E 0xFE 0xEF 0xEF 0x0C D7 D10 D10 D10 - - D6 D9 D9 D9 - - D5 D6 D6 D6 - - D4 D5 D5 D5 - - D3 - - - - - D2 - - - - - D1 D11 D11 D11 D11 D11 D0 D12 D12 D12 D12 - Register setting 0x0C 0x0C 0xFC 0xFD ADC3541 SBAS840 – JULY 2020 www.ti.com 46 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: ADC3541 |
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