Schematic is the light-meter for a circa 1998/2000 slr camera.
What is the function of the 10 pin IC within J100. Is it analog switch?, level adjust, switchable comparator?, analog sample-and-hold? Is it likely a custom part?
- SOUT (pin 5) connects to what appears to be a light dependent resistor.
- The analog signal is connected to the microcontroller ADC (AN0).
- SEL1, SEL2, SEL3 are uncertain select/switch functions driven by MCU gpio.