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LC75056PE Datasheet(PDF) 8 Page - ON Semiconductor |
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LC75056PE Datasheet(HTML) 8 Page - ON Semiconductor |
8 / 28 page LC75056PE www.onsemi.com 8 Pin functions No Pin name Input/output Input/output (RSTB=L) Functions 1 COAVDD2 Power supply for CODEC analog (3.3V) 2 COAVSS1 Power supply for CODEC analog (GND) 3 COAVDD1 Power supply for CODEC analog (3.3V) 4 VREFAMPO AO AO Reference voltage buffer output pin, used as external reference voltage 5 ADC_VREF AO AO Reference voltage output pin for CODEC ADC A coupling capacitor is required between this pin and GND. 6 DAC_VREF AO AO Reference voltage output pin for CODEC DAC A coupling capacitor is required between this pin and GND. 7 MNI3 AI AI Analog single-end input pin for monaural3 When this pin is unused, connect it to GND via capacitor. 8 MNI2N AI AI Negative analog input pin for monaural 2 or Analog single-end input pin for monaural 5. When this pin is unused, connect it to GND via capacitor. 9 MNI2P AI AI Positive analog input pin for monaural 2 or Analog single-end input pin for monaural 4. When this pin is unused, connect it to GND via capacitor. 10 MNI1P AI AI Positive analog input pin for monaural 1 When this pin is unused, connect it to GND via capacitor. 11 MNI1N AI AI Negative analog input pin for monaural 1 When this pin is unused, connect it to GND via capacitor. 12 TEST1 I I Test mode setting input pin1. Normally connected to GND 13 TEST2 I I Test mode setting input pin2. Normally connected to GND 14 DVSS_3 Power supply for digital (GND) 15 DVDD33 Power supply for digital (3.3V) 16 MODE I Select pin for serial communication mode (“0”: I 2C, “1”: SPI) 17 BUSYO O O (H) System busy signal output pin for HOST CPU communication (High level: the system is busy) 18 SP_DO/SDAS I/O I Data output pin for SPI (slave) communication or data input/ output pin for IIC (Slave) communication 19 SP_CL/SCLS I I Clock input pin for data transfer for SPI (slave) communication or data transfer clock input pin for IIC (Slave) communication 20 SP_DI/GPIO_2 I/O I Data input pin for SPI (slave) communication or General-purpose input/output pin2 for Audio DSP 21 SP_SSB/GPIO_3 I/O I Enable signal input pin for SPI (slave) communication (Active: low level) or General-purpose input/output pin3 for audio DSP 22 GPO_1 (ERR) O O(L) General-purpose output pin 1 for integrated DSP (will be designed to correspond to communication error signal output) 23 PWDB I I Power-down mode setting pin. Normally high level. 24 RSTB I I System reset pin. Make sure to set to low level when turning on power. 25 DSPIO1 I/O I Audio DSP general input/output pin 1 26 DVDD_2 Power supply for internal logic (1.5V) 27 DVSS_2 Power supply for digital (GND) 28 DVREF O Control output pin for 1.5V level 29 DVDD33 Power supply for digital (3.3V) 30 DSPIO2 I/O I Audio DSP general-purpose input/output pin2 31 DSPIO3 I/O I Audio DSP general-purpose input/output pin3 32 DSPIO4 I/O I Audio DSP general-purpose input/output pin4 or 256fs_clock out pin. 33 IISI1_DATA I I IIS data input pin1 34 IISI1_LRCK I I IIS word clock input pin1 35 IISI1_BCLK I I IIS bit clock input pin1 36 IISI2_DATA I I IIS data input pin2 37 IISI2_LRCK I I IIS word clock input pin2 38 IISI2_BCLK I I IIS bit clock input pin2 39 IISI3_DATA I I IIS data input pin3 40 IISI3_LRCK I I IIS word clock input pin3 41 IISI3_BCLK I I IIS bit clock input pin3 42 IISI4_DATA I I IIS data input pin4 Continued on next page. |
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