47RX-V365/HTR-6230RX-V365/HTR-6230IN1IN2IN3 MUX T/HVA8-BitSUCCESSIVEAPPROXIMATIONADCGNDIN4GNDSCLKCONTROLLOGICCSDINDOUTCS 1VA 2GND 3IN4 4IN3 5SCLKADC084S02110DOUT9DIN8IN17IN26Y0Y1Y2Y3Y4Y5Y6Y7COMINHCBA 111096313141512152412345678 910161514131211Y4Y6COMY7Y5INHGNDGNDV CCY2Y1Y0Y3ABCINPUTS ONCHANNELINHLLLLLLLLHLLLHHHHXCLLHHLLHHXLHLHLHLHXLY1Y2Y3Y4Y5Y6Y7NoneY0B AIC401: ADC084S021CIMM (DSP P.C.B.)4-channel, 200 kSPS, 8-bit A/D converter• Microprocessor ADC select portIC402, IC403: SN74LV4051APWR (DSP P.C.B.)8-channel analog multiplexers/demultiplexersKey input (A/D), pull-up resistance 10 k-ohmsPin No. Port Name Function Name Detail of Function1 /CS /SPISEL1 CS for microprocessor2 VA VA +3.3S3 GND DGND Ground of external4 IN4 IN4 SPI bus COM (IC402)5 IN3 IN3 SPI bus COM (IC403)6 IN2 KEY1 Key input 17 IN1 KEY0 Key input 08 DIN SPIMO Master output/slave input9 DOUT SPIMI Master input/slave output10 SCLK SPISCK SPI clockOhm [ohm] +1.0 k +1.0 k +1.5 k +2.2 k +3.3 k +4.7 k +4.7 k +6.8 k +10.0 k +22.0 kV [V] 0.3 0.55 0.86 1.2 1.56 1.91 2.14 2.36 2.57 2.81KEY0(7 pin) SCENE 1 SCENE 2 PROGRAM<PROGRAM> STRAIGHT TONECONTROLPRESET/TUNING BAND A/B/C/D/E SPEAKERSKEY1(6 pin) SCENE 3 SCENE 4 NIGHT – INPUT < INPUT > PRESET/TUNING <PRESET/TUNING > MEMORY TUNING