ALC5640-VB Datasheet PDF – Audio Hub/CODEC – Realtek

Part Number: ALC5640-VB, ALC5640

Function : Multi-Channel Audio Hub/CODEC and SounzReal Digital Sound Effect

Package: QFN48 (6×6) Type

Manufacturer: Realtek Semiconductor




The ALC5640-VB is a high performance, low power, dual I2S interface audio CODEC. Dual I2S interface can connect to different devices and let the ALC5640 to be an Audio Hub. Each device can pass through the Audio Hub and then perform as input or output application. Asynchronous Sample Rate Converter (ASRC) provides independent and asynchronous connections to different processors, such as an application processor, baseband processor or wireless transceiver(BT). Stereo Class-D speaker amplifiers provide 1.5W per channel into 8Ω or 2.5W per channel into 4Ω with a 5V supply, with excellent PSRR and low EMI. A mono differential earpiece amplifier is also provided, providing output from any DAC or Analog-in. The ALC5640 features an ultra low power cap-free headphone amplifier. It consumes only less than 5mW power







1. Digital-to-Analog Converter with 100dBA SNR

2. Analog-to-Digital Converter with 94dBA SNR

3. Differential analog microphone inputs with boost pre-amplifiers and low noise microphone bias



1. Two 24bit/8kHz ~ 192kHz I2S/PCM interface for each mono DAC and stereo DAC

2. Two 24bit/8kHz ~ 192kHz I2S/PCM interface for stereo ADC

3. I2C control interface

4. Two digital microphone interface support

5. Asynchronous sample rate converter (ASRC) for each interface

6. Programmable register table with two sequencers

7. 7-bands flexible equalizer (EQ) for DAC path or ADC pa



ALC5640-VB Datasheet PDF


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