Details

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BUY CS8421-CZZ https://www.utsource.net/itm/p/4315950.html
32-bit, 192 kHz Asynchronous Sample Rate Converter

Parameter	Description	Value
Device Type	Digital Audio Interface Receiver	-
Package	TSSOP-20	-
Supply Voltage (VCC)	Operating voltage range	4.5V to 5.5V
Current Consumption	Active mode current consumption	35mA
Standby Current	Standby mode current consumption	1渭A
Sampling Rate	Supported sampling rates	32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz
Data Format	Supported data formats	I2S, Left-Justified, Right-Justified, DSP
Clock Input	External clock input range	3.072MHz to 24.576MHz
Bit Resolution	Supported bit resolutions	16-bit, 20-bit, 24-bit
Channel Configuration	Number of channels	2 (stereo)
Interface	Communication interface	I2C, SPI
Operating Temperature	Operating temperature range	-40掳C to +85掳C
Storage Temperature	Storage temperature range	-65掳C to +150掳C

Instructions for Use

1. Power Supply:

   • Connect the VCC pin to a stable 5V power supply.
   • Ensure the GND pin is connected to the system ground.

2. Clock Configuration:

   • Connect an external clock source to the BCK (Bit Clock) pin.
   • The clock frequency should be within the supported range (3.072MHz to 24.576MHz).

3. Data Input/Output:

   • Connect the LRCK (Left/Right Clock) pin to the appropriate signal source.
   • Connect the SDI (Serial Data In) and SDO (Serial Data Out) pins to the corresponding signals from the audio source or destination.

4. Control Interface:

   • Use the I2C or SPI interface to configure the device settings.
   • Refer to the device datasheet for specific register addresses and configurations.

5. Sampling Rate and Bit Resolution:

   • Set the desired sampling rate and bit resolution using the control interface.
   • Ensure the external clock and data format settings are compatible with the selected sampling rate and bit resolution.

6. Standby Mode:

   • To enter standby mode, set the appropriate bit in the control register.
   • This will reduce the current consumption to 1渭A.

7. Temperature Considerations:

   • Operate the device within the specified temperature range (-40掳C to +85掳C).
   • Store the device in a temperature-controlled environment to avoid damage.

8. Testing and Validation:

   • After initial setup, perform a basic test to verify that the device is receiving and transmitting audio data correctly.
   • Use a known good audio source and destination to validate the functionality.

For detailed information and advanced configurations, refer to the CS8421-CZZ datasheet and application notes provided by the manufacturer.

(For reference only)