Details

---

BUY PCM2900EG4 https://www.utsource.net/itm/p/741706.html
IC STEREO AUD CODEC W/USB 28SSOP

Parameter	Description	Value
Device Type	Integrated Codec with USB Interface	-
Audio Channels	Number of Audio Channels	2 (Stereo)
Sampling Rate	Supported Sampling Rates	8 kHz to 48 kHz
Resolution	ADC/DAC Resolution	16-bit
SNR (Signal-to-Noise Ratio)	SNR for Analog Input/Output	90 dB (A-weighted)
THD+N (Total Harmonic Distortion + Noise)	THD+N for Analog Input/Output	0.005% (A-weighted)
Power Supply	Operating Voltage Range	3.0 V to 3.6 V
Current Consumption	Active Mode Current Consumption	25 mA (typical)
Standby Mode	Standby Mode Current Consumption	0.1 μA (typical)
USB Interface	USB Interface Type	Full-Speed USB 1.1
USB Power	USB Power Consumption	100 mA (max)
Package Type	Package	TSSOP-48
Operating Temperature	Operating Temperature Range	-40°C to 85°C
Storage Temperature	Storage Temperature Range	-65°C to 150°C

Instructions for Use

1. Power Supply:

   • Ensure the power supply voltage is within the range of 3.0 V to 3.6 V.
   • Connect the power supply to the VCC pin and ground to the GND pin.

2. USB Connection:

   • Connect the USB D+ and D- pins to the USB interface on your host device.
   • The device will draw power from the USB port if USB power is used.

3. Analog Audio Connections:

   • Connect the analog audio input signals to the IN1L, IN1R, IN2L, and IN2R pins.
   • Connect the analog audio output signals from the OUT1L, OUT1R, OUT2L, and OUT2R pins to your speakers or headphones.

4. Digital Audio Configuration:

   • Use the I2C interface to configure the PCM2900EG4. Connect the SCL and SDA pins to your microcontroller or processor.
   • Set the desired sampling rate and other parameters using the I2C commands provided in the datasheet.

5. Standby Mode:

   • To enter standby mode, set the appropriate register bit via the I2C interface.
   • This reduces power consumption to 0.1 μA.

6. Reset:

   • Use the RESET pin to reset the device. Pull the RESET pin low for at least 1 μs to initiate a reset.

7. Software Installation:

   • Install the necessary drivers on your host computer to recognize the PCM2900EG4 as a USB audio device.
   • Use a compatible audio application to control and monitor the audio stream.

8. Handling Precautions:

   • Handle the device with care to avoid static damage.
   • Ensure all connections are secure and properly soldered to prevent intermittent issues.

For detailed register settings and advanced configurations, refer to the datasheet and application notes provided by the manufacturer.

(For reference only)