Sony NWZA816P Service Manual - Page 30

NW-A805/A806/A808/NWZ-A815/A816/A818 • IC Pin Function Description MAIN BOARD IC302 CS42L51-CNZR (A/D CONVERTER, D/A CONVERTER) Pin No. Pin Name I/O Description 1 LRCK I/O L/R sampling clock signal input/output with the system controller 2 SDA/CDIN I/O I2C mode : Serial date input/output with the system controller SPI mode : Serial date input from the system controller 3 SCL/CCLK I Serial data transfer clock signal input from the system controller 4 AD0/nCS I I2C mode : Address signal input from the system controller SPI mode : Chip select signal input from the system controller 5 VA_HP - Power supply terminal (+1.8V) 6 FLYP I Connected to the external charge pump capacitor (positive node) 7 GND_HP - Ground terminal 8 FLYN I Connected to the external charge pump capacitor (negative node) 9 VSS_HP - Connected to the capacitor for the internal analog headphone section 10 AOUTB O R-ch analog audio signal output to the headphone and WM-port 11 AOUTA O L-ch analog audio signal output to the headphone and WM-port 12 VA - Power supply terminal (+1.8V) 13 AGND - Ground terminal 14 DAC_FILT+ - Not used 15 VQ - Not used 16 ADC_FILT+ - Not used 17 MICIN1/AIN3A I Analog audio signal input terminal Not used 18 MICIN2/AIN3B/ BIAS I Analog audio signal input terminal Not used 19 AIN2A I Analog audio signal input terminal Not used 20 AIN2B/BIAS I Analog audio signal input terminal Not used 21 AFILTA - Not used 22 AFILTB - Not used 23 AIN1A I L-ch analog audio signal input from the WM-port 24 AIN1B I R-ch analog audio signal input from the WM-port 25 nRESET I Reset signal input from the system controller 26 VL - Power supply terminal 27 VD - Power supply terminal (+1.8V) 28 DGND - Ground terminal 29 SDOUT O Serial audio date output to the system controller 30 MCLK I Master clock signal input from the system controller 31 SCLK O Serial clock signal output to the system controller 32 SDIN I Serial audio date input from the system controller 33 AGND - Ground terminal 30