GX8311 in IP Camera, compatible with ES8311

IP Camera is the main work of the image sensor will be captured by the lens image signal into an electrical signal, and then by the A/D converter to convert the analog electrical signal into a digital signal, and then need to use the Audio Codec audio codec chip will be processed digital signals, and finally through the network protocols will be processed by the transmission of audio and video data to the terminal equipment.

Audio Codec chip GX8311 is a high-performance multi-channel audio processor with low-latency, high sound quality, and supports a variety of audio interfaces, such as I2S, SPI, etc., which can be flexibly connected with other audio devices. It also has a powerful audio processing capability to realize audio filtering, equalization, compression and other functions, which is fully suitable for IP Camera applications with high audio quality requirements.

The GX8311 has fully differential outputs to support programmable analog inputs in a fully differential configuration, and the recording path includes a fully differential input, low-noise programmable gain amplifier and automatic gain control (ALC). Noise is eliminated during recording by built-in programmable filters. The playback path includes a mono DAC, programmable volume control and fully differential outputs. The GX8311 is also PIN TO PIN compatible with the ES8311.

GX8311 main performance is introduced:

1, the system: high-performance low-power 24-bit delta-sigma audio ADC and DAC, I2S/PCM master serial or slave serial data port, 256/384Fs, USB 12/24MHz and other non-standard audio system clock, and I2C interface.

2, ADC: 24-bit, 8 to 96kHz sampling frequency, 95dB signal-to-noise ratio, -93dB THD + N, a pair of differential analog inputs, low-noise programmable gain amplifiers, automatic level control (ALC) and noise gate, support for analog and digital microphones.

3, DAC: 24-bit, 8 to 96kHz sampling frequency, 95dB signal-to-noise ratio, -85dB THD + N, a pair of differential analog outputs, dynamic range compression, pop and click noise suppression

4, low power consumption: 1.8V to 3.3V operating voltage, low standby current.