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CS42438 Fiches technique(PDF) 9 Page - Cirrus Logic |
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CS42438 Fiches technique(HTML) 9 Page - Cirrus Logic |
9 / 62 page DS646F1 9 CS42438 2. PIN DESCRIPTIONS - HARDWARE MODE Pin Name # Pin Description AIN5_MUX AIN6_MUX 1 2 Analog Input Multiplexer (Input) - Allows selection between the A and B single-ended inputs of ADC3. See Section 7.6.7 and 7.6.8 for details. MFREQ 3 MCLK Frequency (Input) - Sets the required frequency range of the input Master Clock. See Section 5.4 for the appropriate settings. ADC3_HPF 4 ADC3 High-Pass Filter Freeze (Input) - When this pin is driven high, the internal high-pass filter will be disabled for ADC3. The current DC offset value will be frozen and continue to be sub- tracted from the conversion result. See “ADC Digital Filter Characteristics” on page 16. RST 5 Reset (Input) - The device enters a low-power mode and all internal registers are reset to their default settings when low. VLC 6 Control Port Power (Input) - Determines the required signal level for the control port interface. See “Digital I/O Pin Characteristics” on page 8. FS 7 Frame Sync (Input) - Signals the start of a new TDM frame in the TDM digital interface format. VD 8 Digital Power (Input) - Positive power supply for the digital section. VLS 10 Serial Port Interface Power (Input) - Determines the required signal level for the serial port inter- faces. SCLK 11 Serial Clock (Input) - Serial clock for the serial audio interface. Input frequency must be 256 x Fs. ADC_SDOUT/ ADC3_SINGLE 13 Serial Audio Data Output (Output) - TDM output for two’s complement serial audio data. Start- up Option for Hardware Mode: Pull-up to VLS enables Single-Ended Mode for AIN5-AIN6. DAC_SDIN 14 DAC Serial Audio Data Input (Input) - Input for two’s complement serial audio data. AUX_LRCK 15 Auxiliary Left/Right Clock (Output) - Determines which channel, Left or Right, is currently active on the Auxiliary serial audio data line. AIN5_MUX 6 2 4 8 10 1 3 5 7 9 11 12 14 15 1 6 17 18 1 9 20 21 22 23 24 25 33 37 35 31 29 38 36 34 32 30 28 27 52 51 5 0 49 48 4 7 46 45 44 43 42 41 VLS FS MCLK VLC ADC3_HPF AOUT7- AOUT5+ AGND VA ADC_SDOUT/ ADC3_SINGLE MFREQ RST AOUT6+ DGND VD SCLK VQ AOUT6- 13 AIN6_MUX 26 39 AOUT5- 40 AOUT7+ AOUT8+ AOUT8- AIN1+ AIN1- 42438 |
Numéro de pièce similaire - CS42438 |
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Description similaire - CS42438 |
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