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CS42L51-CNZR Folha de dados(PDF) 7 Page - Cirrus Logic |
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CS42L51-CNZR Folha de dados(HTML) 7 Page - Cirrus Logic |
7 / 83 page DS679A2 7 CS42L51 1. PIN DESCRIPTIONS - SOFTWARE (HARDWARE) MODE Pin Name # Pin Description LRCK 1 Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on the serial audio data line. SDA/CDIN 2 Serial Control Data (Input/Output) - SDA is a data I/O in I²C mode. CDIN is the input data line for the control port interface in SPI mode. (MCLKDIV2) MCLK Divide by 2 (Input) - Hardware Mode: Divides the MCLK by 2 prior to all internal circuitry. SCL/CCLK 3 Serial Control Port Clock (Input) - Serial clock for the serial control port. (I²S/LJ) Interface Format Selection (Input) - Hardware Mode: Selects between I²S & Left-Justified interface for- mats for the ADC & DAC. AD0/CS 4 Address Bit 0 (I²C) / Control Port Chip Select (SPI) (Input) - AD0 is a chip address pin in I²C mode; CS is the chip select signal for SPI format. (DEM) De-Emphasis (Input) - Hardware Mode: Enables/disables the de-emphasis filter. VA_HP 5 Analog Power For Headphone (Input) - Positive power for the internal analog headphone section. FLYP 6 Charge Pump Cap Positive Node (Input) - Positive node for the external charge pump capacitor. GNDHP 7 Analog Ground (Input) - Ground reference for the internal headphone/charge pump section. FLYN 8 Charge Pump Cap Negative Node (Input) - Negative node for the external charge pump capacitor. VSS_HP 9 Negative Voltage From Charge Pump (Output) - Negative voltage rail for the internal analog head- phone section. AOUTB AOUTA 10 11 Analog Audio Output (Output) - The full-scale output level is specified in the DAC Analog Characteris- tics specification table. VA 12 Analog Power (Input) - Positive power for the internal analog section. AGND 13 Analog Ground (Input) - Ground reference for the internal analog section. 10 9 8 7 6 5 4 3 2 1 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 CS42L51 SDA/CDIN (MCLKDIV2) SCL/CCLK (I²S/LJ) AD0/CS (DEM) FLYP GNDHP FLYN AFILTA AIN1A AIN1B AIN2A AIN2B/BIAS MICIN1/AIN3A MICIN2/BIAS/AIN3B AFILTB VA_HP LRCK |
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