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AD7761BSTZ датащи(PDF) 65 Page - Analog Devices |
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AD7761BSTZ датащи(HTML) 65 Page - Analog Devices |
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65 / 76 page ![]() AD7761 Data Sheet Rev. A | Page 64 of 75 CHANNEL MODE SELECT REGISTER Address: 0x03, Reset: 0x00, Name: Channel Mode Select This register selects the mapping of each ADC channel to either Channel Mode A or Channel Mode B. Table 37. Bit Descriptions for Channel Mode Select Bits Bit Name Settings Description Reset Access 7 CH_7_MODE Channel 7 0x0 RW 0 Mode A 1 Mode B 6 CH_6_MODE Channel 6 0x0 RW 0 Mode A 1 Mode B 5 CH_5_MODE Channel 5 0x0 RW 0 Mode A 1 Mode B 4 CH_4_MODE Channel 4 0x0 RW 0 Mode A 1 Mode B 3 CH_3_MODE Channel 3 0x0 RW 0 Mode A 1 Mode B 2 CH_2_MODE Channel 2 0x0 RW 0 Mode A 1 Mode B 1 CH_1_MODE Channel 1 0x0 RW 0 Mode A 1 Mode B 0 CH_0_MODE Channel 0 0x0 RW 0 Mode A 1 Mode B POWER MODE SELECT REGISTER Address: 0x04, Reset: 0x00, Name: POWER_MODE Table 38. Bit Descriptions for POWER_MODE Bits Bit Name Settings Description Reset Access 7 SLEEP_MODE In sleep mode, many of the digital clocks are disabled and all of the ADCs are disabled. The analog LDOs are not disabled. 0x0 RW The AD7761 SPI is live and is available to the user. Writing to this bit brings the AD7761 out of sleep mode again. 0 Normal operation. 1 Sleep mode. [5:4] POWER_MODE Power mode. The power mode bits control the power mode setting for the bias currents used on all ADCs on the AD7761. The user can select the current consumption target to meet the application. The power modes of fast, median, and low power give optimum performance when mapped to the correct MCLK division setting. These power mode bits do not control the MCLK division of the ADCs. See the MCLK_DIV bits for control of the division of the MCLK input. 0x0 RW 00 Low power. 10 Median. 11 Fast. 3 LVDS_ENABLE LVDS clock. 0x0 RW 0 LVDS input clock disabled. 1 LVDS input clock enabled. |
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