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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADC3641 датащи(PDF) 52 Page - Texas Instruments |
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ADC3641 датащи(HTML) 52 Page - Texas Instruments |
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52 / 77 page  Figure 8-51. Register 0x14/15/16 7 6 5 4 3 2 1 0 CUSTOM PAT [7:0] CUSTOM PAT [15:8] TEST PAT B TEST PAT A CUSTOM PAT [17:16] 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 8-22. Register 0x14/15/16 Field Descriptions Bit Field Type Reset Description 7-0 CUSTOM PAT [17:0] R/W 00000000 This register is used for two purposes: • It sets the constant custom pattern starting from MSB • It sets the RAMP pattern increment step size. 00001: Ramp pattern for 18-bit ADC 00100: Ramp pattern for 16-bit ADC 10000: Ramp pattern for 14-bit ADC 7-5 TEST PAT B R/W 000 Enables test pattern output mode for channel B (NOTE: The test pattern is set prior to the bit mapper and is based on native resolution of the ADC starting from the MSB). These work in either output format. 000: Normal output mode (test pattern output disabled) 010: Ramp pattern: need to set proper increment using CUSTOM PAT register 011: Constant Pattern using CUSTOM PAT [17:0] in register 0x14/15/16. others: not used 4-2 TEST PAT A R/W 000 Enables test pattern output mode for channel A (NOTE: The test pattern is set prior to the bit mapper and is based on native resolution of the ADC starting from the MSB). These work in either output format. 000: Normal output mode (test pattern output disabled) 010: Ramp pattern: need to set proper increment using CUSTOM PAT register 011: Constant Pattern using CUSTOM PAT [17:0] in register 0x14/15/16. others: not used Figure 8-52. Register 0x18 7 6 5 4 3 2 1 0 0 0 0 DCLKIN EN 0 0 0 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 8-23. Register 0x18 Field Descriptions Bit Field Type Reset Description 7-5 0 R/W 0 Must write 0 4 DCLKIN EN R/W 0 This bit enables the DCLKIN clock input buffer for serial CMOS modes. Also DCLKIN EN (0x1F, D6) needs to be set as well. 0: DCLKIN buffer powered down. 1: DCLKIN buffer enabled. 3-0 0 R/W 0 Must write 0 ADC3643 SBAS886 – OCTOBER 2020 www.ti.com 52 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: ADC3643 |
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