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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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FS23 датащи(PDF) 48 Page - NXP Semiconductors |
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FS23 датащи(HTML) 48 Page - NXP Semiconductors |
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48 / 230 page  NXP Semiconductors FS23 Safety system basis chip (SBC) with power management, CAN FD and LIN transceivers 14 AMUX: Analog multiplexer 14.1 Functional description The AMUX pin delivers 32 analog voltage channels to the MCU ADC input. The voltage channels delivered to the AMUX pin can be selected by SPI/I2C. The maximum AMUX output voltage range is VDDIO (3.3 V or 5.0 V). An external output capacitor, CAMUX_OUT, is required for the buffer stability. 14.2 Block diagram aaa-051449 Buffer R3 SPI/I2C Signals /3 Signals /10.5 or /20 Signals R4 R5 x y z AMUX To MCU ADC VDDIO AGND AMUX[4:0] CAMUX_OUT Channels_x Channels_y Channels_z R1 R2 Figure 27. AMUX block diagram. 14.3 Channel selection Channel AMUX[4:0] Signal selection for AMUX output AMUX_DIV = 0 AMUX_DIV = 1 0 00000 AGND 1 1 1 00001 VDIG: Internal voltage supply (1.6 V) 1 1 2 00010 V1 voltage 3 3 3 00011 V2 voltage 3 3 4 00100 V3 voltage 3 3 5 00101 VBOS internal voltage 3 3 6 00110 VSUP voltage (Divider ratio configurable by SPI/I2C) 10.5 20 7 00111 VSHS voltage (Divider ratio configurable by SPI/I2C) 10.5 20 8 01000 WAKE1 voltage (Divider ratio configurable by SPI/I2C) 10.5 20 9 01001 WAKE2 voltage (Divider ratio configurable by SPI/I2C) 10.5 20 10 01010 HVIO1 voltage (Divider ratio configurable by SPI/I2C) 10.5 20 11 01011 HVIO2 voltage (Divider ratio configurable by SPI/I2C) 10.5 20 12 01100 Die temperature sensor 1 1 13 01101 V1 temperature sensor 1 1 14 01110 V2 temperature sensor 1 1 15 01111 V3 temperature sensor 1 1 16 10000 VDDIO voltage 3 3 > 16 1xxxx Reserved N/A N/A Table 20. AMUX output selection FS23 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved. Product data sheet Rev. 7.0 — 16 October 2024 Document feedback 48 / 230 |
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