CS4228A-KSZR

CS4228A-KSZR Application Field And Working Principle

CS4228A-KSZR is a codec chip developed by Cirrus Logic proprietary. It is a highly integrated single-chip solution which provides low power coding and decoding of audio. It is a leading audio codec used in many applications today, including mobile and automotive applications.

Application Field

The CS4228A-KSZR is an application specific audio codec designed for use in mobile phones and other portable media devices. The chip supports numerous digital audio formats, such as A-law, μ-law, PCM, and more. It supports output sample rates up to 48 kHz and can be scaled from 8 KHz to 20 KHz. In addition, the CS4228A-KSZR is also designed for automotive applications. It supports various analog and digital audio formats, and has a stack-enable feature making it easy to integrate and flexible for various sound systems.

Working Principle

The CS4228A-KSZR uses high performance and low power digital signal processing (DSP) integrated onto a single chip. It supports multiple programming environments and can be customized at compile-time.The device can be used in both mono and stereo modes, with a single or dual-channel input and output interface. The DAC/ADC is 16-bit resolution and can support sample rates up to 48 kHz. The device also supports audio post-processing including noise reduction, low-pass filtering, cross-frequency coupling, and adjustable gain control.The chip also includes a built-in amplifier (VGA) which can be used to customize the audio output. It can be either Gain-controlled or voltage-controlled and is capable of driving 8 Ohm speakers. The CS4228A-KSZR features an ultra-low power design, which allows it to be used in mobile phone applications for longer battery times. It also supports an optional sleep mode and dynamic power management for battery saving.

Conclusion

The CS4228A-KSZR is a highly integrated, low power, audio codec which provides high performance and flexibility. It is ideal for use in both mobile and automotive applications. The device supports a wide range of audio formats, post-processing effects, and amplifier control. The ultra-low power design makes it suitable for mobile phone applications.