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ADC3683 датащи(PDF) 56 Page - Texas Instruments |
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ADC3683 датащи(HTML) 56 Page - Texas Instruments |
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56 / 70 page ![]() Figure 9-7. Register 0x11 7 6 5 4 3 2 1 0 0 0 0 0 0 DLL PDN 0 AZ EN 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 9-8. Register 0x11 Field Descriptions Bit Field Type Reset Description 7-3 0 R/W 0 Must write 0 2 DLL PDN R/W 0 This register applies ONLY to the ADC3683-SP. It powers down the internal DLL, which is used to adjust the sampling time. This register must only be enabled when operating at sampling rates below 40 MSPS. When DLL PDN bit is enabled, the sampling time is directly dependent on sampling clock duty cycle (with a 50/50 duty the sampling time is TS/2). 0: Sampling time is TS/ 4 1: Sampling time is TS/2 (only for sampling rates below 40 MSPS). 1 0 R/W 0 Must write 0 0 AZ EN R/W 0/1 This bit enables the internal auto-zero circuitry. It is disabled by default for the ADC3683-SP. 0: Auto-zero disabled 1: Auto-zero enabled Figure 9-8. Register 0x13 7 6 5 4 3 2 1 0 0 0 0 0 0 0 E-FUSE LD 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 9-9. Register 0x13 Field Descriptions Bit Field Type Reset Description 7-1 0 R/W 0 Must write 0 0 E-FUSE LD R/W 0 This register bit loads the internal bit mapping for different interfaces. After setting the interface in register 0x07, this E- FUSE LD bit needs to be set to 1 and reset to 0 for loading to go into effect. Register 0x07 along with the E-Fuse Load (0x12, D0) needs to be loaded first in the programming sequence since the E-Fuse load resets the SPI writes. 0: E-FUSE LOAD set 1: E-FUSE LOAD reset ADC3683-SP SBASAB5 – MARCH 2024 www.ti.com 56 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated Product Folder Links: ADC3683-SP |
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