benbiles
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20th November 2019, 09:14benbiles replied to a thread Switch +/- 15v supply for audio preamp in Hobby Circuits and Small Projects ProblemsI could send 8 logic lines from MCU though something like Si8380P for isolation. I'm not sure what to make the switches with since there is...6 replies | 459 view(s) -
20th November 2019, 03:10benbiles replied to a thread Switch +/- 15v supply for audio preamp in Hobby Circuits and Small Projects ProblemsYes I need to isolate the digital from the preamp. I can isolate the GPO lines or SPI lines instead ?6 replies | 459 view(s)
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19th November 2019, 18:38benbiles replied to a thread Switch +/- 15v supply for audio preamp in Hobby Circuits and Small Projects ProblemsI'm thinking of trying, MCP23S17 I/O Expander with spi Interface. 25mA per GPO. 1 x optoMos CPC1008N for each + & - rail. The CPC1008N says...6 replies | 459 view(s)
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19th November 2019, 11:25benbiles replied to a thread Switch +/- 15v supply for audio preamp in Hobby Circuits and Small Projects Problemswait.. I just need to run a 2nd CS line from MC to select the chip. forgot how to use SPI for a min. ! so far I can find MAX335 , a Serial...6 replies | 459 view(s)
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19th November 2019, 06:06benbiles started a thread Switch +/- 15v supply for audio preamp in Hobby Circuits and Small Projects ProblemsHi , i'm trying to find a low power solution to switch +/-5v on/off with daisy chained SPI to switch on/off TI PGA2500 preamp prototypes i'm...6 replies | 459 view(s)
About benbiles
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21st November 2019
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20th November 2019
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