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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADC32RF44IRMPR датащи(PDF) 98 Page - Texas Instruments |
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ADC32RF44IRMPR датащи(HTML) 98 Page - Texas Instruments |
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98 / 135 page  98 ADC32RF44 SBAS809A – FEBRUARY 2017 – REVISED MARCH 2017 www.ti.com Product Folder Links: ADC32RF44 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 9.5.12.13 Register 00Eh (address = 00Eh), Decimation Filter Page Figure 177. Register 00Eh 7 6 5 4 3 2 1 0 DDC1 NCO4 MSB R/W-0h LEGEND: R/W = Read/Write; -n = value after reset Table 85. Register 00Eh Field Descriptions Bit Field Type Reset Description 7-0 DDC1 NCO4 MSB R/W 0h These bits are the MSB of the NCO frequency word for NCO4 of DDC1 (band 2, only when dual-band mode is enabled). The LSB represents fS / (2 16), where f S is the ADC sampling frequency. 9.5.12.14 Register 00Fh (address = 00Fh), Decimation Filter Page Figure 178. Register 00Fh 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 NCO SEL PIN W-0h W-0h W-0h W-0h W-0h W-0h W-0h R/W-0h LEGEND: R/W = Read/Write; W = Write only; -n = value after reset Table 86. Register 00Fh Field Descriptions Bit Field Type Reset Description 7-1 0 W 0h Must write 0 0 NCO SEL PIN R/W 0h This bit enables NCO selection through the GPIO pins. 0 = NCO selection through SPI (see address 0h10) 1 = NCO selection through GPIO pins 9.5.12.15 Register 010h (address = 010h), Decimation Filter Page Figure 179. Register 010h 7 6 5 4 3 2 1 0 0 0 0 0 0 0 NCO SEL W-0h W-0h W-0h W-0h W-0h W-0h R/W-0h LEGEND: R/W = Read/Write; W = Write only; -n = value after reset Table 87. Register 010h Field Descriptions Bit Field Type Reset Description 7-2 0 W 0h Must write 0 1-0 NCO SEL R/W 0h These bits enable NCO selection through register setting. 00 = NCO1 selected for DDC 1 01 = NCO2 selected for DDC 1 10 = NCO3 selected for DDC 1 |
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