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
1LRCK I/O L/R sampling clock signal input/output with the system controller
2SDA/CDIN I/O I2C mode : Serial date input/output with the system controller
SPI mode : Serial date input from the system controller
3SCL/CCLK I Serial data transfer clock signal input from the system controller
4AD0/nCS I I2C mode : Address signal input from the system controller
SPI mode : Chip select signal input from the system controller
5VA_HP - Power supply terminal (+1.8V)
6FLYP I Connected to the external charge pump capacitor (positive node)
7GND_HP - Ground terminal
8FLYN I Connected to the external charge pump capacitor (negative node)
9VSS_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 IAnalog 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