Replace ES8311, audio codec chip GX8311 in the car recorder application

While recording video, the car recorder needs to synchronize the recording of sound in order to more comprehensively record all kinds of information during the driving process. The analog-to-digital converter in the audio codec chip GX8311 has 24-bit precision and a sampling frequency of 8 to 96kHz, which can accurately convert the analog audio signal captured by the microphone into a digital signal, thus realizing high-quality audio recording.

Some car recorders have audio playback functions, such as playing back recorded video while playing sound, the digital-to-analog converter in the audio codec chip GX8311 also has 24-bit precision and a sampling frequency of 8 to 96kHz, which can accurately convert stored digital audio signals into analog signals and drive the speakers to play back clear sound after amplification by an audio power amplifier.

The low-power mono audio codec, GX8311, which features a fully differential output supports programmable analog inputs in a fully differential configuration, and the recording path contains a fully differential input, low-noise programmable gain amplifier and automatic gain control (ALC). Noise is eliminated during the recording process 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