CS48520/40/60 Overview
The 32-bit CS48520 and CS48540 audio DSPs are designed to enable unique digital signal processing audio software features for flat-panel digital television applications. The CS48520 and CS48540 ICs give OEMs a cost-effective and simple-to-design solution capable of providing an extensive selection of audio features that allow OEMs to provide consumers with enhanced audio features and maximize the flat-panel television’s overall audio system. The CS48520 provides four channels of in/out audio and is ideally designed for two or 2.1-channel stereo applications, whereas the CS48540 provides eight channels of in/out audio and is targeted for multi-channel systems. Among the consumer features that can be implemented using the CS48500 family: Multi-channel and virtual surround sound, Dynamic volume control, Enhanced listening modes, Bass management, Speaker and cabinet tuning, Automatic room equalization, A/V sync delay. To assist manufacturers, Cirrus Logic also provides DSP Composer™, a PC-based graphical interface software tool designed to give engineers a simple, powerful user interface from which to configure the audio processing performed by the ICs. Support for home audio applications is through a third party. Please contact your local sales representative for information.
Product Features
Multi-channel 32-bit audio post processing at 150 MHz
Up to 12 channels of 32-bit PCM input
Up to 6 channels of DSD input (SACD)
Up to 12 channels of 32-bit PCM output
192 kHz SPDIF Tx
SPI™/I²C® main or secondary serial control port
Low power standby: 350 μW
Hardware watchdog timer
Up to 19 GPIOs available
Dual clock domains on PCM input
Dual processing paths on PCM output
Customer software security keys
Large on-chip X, Y, and program RAM & ROM
Programmable via DSP composer
Licensed 3rd party audio processing algorithms in ROM
Licensed 3rd party algorithms or custom firmware can be downloaded through SPI™/I²C®port