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CDB4272 데이터시트(PDF) 8 Page - Cirrus Logic |
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CDB4272 데이터시트(HTML) 8 Page - Cirrus Logic |
8 / 53 page CS4272 8 DS593F1 Pin Name # Pin Description XTO XTI 1,2 Crystal Connections (Input/Output) - I/O pins for an external crystal which may be used to generate the master clock. See “Crystal Applications (XTI/XTO)” on page 24 or “Crystal Applications (XTI/XTO)” on page 27. MCLK 3 Master Clock (Input/Output) -Clock source for the delta-sigma modulators. See “Crystal Applications (XTI/XTO)” on page 24 or “Crystal Applications (XTI/XTO)” on page 27. LRCK 4 Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on the serial audio data line. SCLK 5 Serial Clock (Input/Output) - Serial clock for the serial audio interface. SDOUT (M/S) 6 Serial Audio Data Output (Output) - Output for two’s complement serial audio data. This pin must be pulled-up or pulled-down to select Master or Slave Mode. See “Master/Slave Mode” on page 24. SDIN 7 Serial Audio Data Input (Input) - Input for two’s complement serial audio data. DGND 8 Digital Ground (Input) - Ground reference for the internal digital section. VD 9 Digital Power (Input) - Positive power for the internal digital section. VL 10 Logic Power (Input) - Positive power for the digital input/output interface. M0 11 Mode Select 0 (Input) - In conjunction with M1, selects operating mode. Functionality is described in the Hardware Mode Speed Configuration table. M1 12 Mode Select 1 (Input) - In conjunction with M0, selects operating mode. Functionality is described in the Hardware Mode Speed Configuration table. I2S/LJ 13 Serial Audio Interface Select (Input) - Selects either the left-justified or I2S format for the Serial Audio Interface. RST 14 Reset (Input) - The device enters a low power mode when this pin is driven low. VCOM 15 Common Mode Voltage (Output) - Filter connection for internal common mode voltage. AINA- AINA+ AINB+ AINB- 16, 17, 18, 19 Differential Analog Input (Input) - The full scale differential input signals are presented to the delta- sigma modulators. The full scale level is specified in the ADC Analog Characteristics specification table. VA 20 Analog Power (Input) - Positive power for the internal analog section. AGND 21 Analog Ground (Input) - Ground reference for the internal analog section. FILT+ 22 Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits. AMUTEC 23 Channel A Mute Control (Output) - This pin is active during power-up initialization, reset, muting, when master clock to left/right clock frequency ratio is incorrect, or power-down. AOUTA- AOUTA+ AOUTB+ AOUTB- 24, 25, 26, 27 Differential Analog Audio Output (Output) - The full scale differential output level is specified in the Analog Characteristics specification table. BMUTEC 28 Channel B Mute Control (Output) - This pin is active during power-up initialization, reset, muting, when master clock to left/right clock frequency ratio is incorrect, or power-down. |
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