The Chorus 3 baseband processor is the latest generation of integrated system-on-chip, providing an optimised solution for WorldDMB Profile 1 and Profile 2 DAB/DAB+/DMB-A and FM-RDS broadcast receivers and Internet radio products.
Chorus 3 is an advanced programmable baseband receiver capable of receiving DAB/DAB+ and DMB-A broadcasts as well as being able to receive and decode internet radio streaming audio. It incorporates a number of mixed signal system components as well as advanced peripherals previously only available as discrete additional components, providing significant space, cost and power savings.
The CPU provides the processing power to receive digital radio, decode internet media and operate the user interface in the system. It is powerful enough to be the master processor in any digital radio system.
Coupled to the CPU are a host of interfaces that allow interfacing to displays, external memory storage and PCs, allowing Chorus 3-based receivers to connect to other devices with minimal additional components.
Advanced power management
Chorus 3 uses dynamic and static power management techniques including fully-static design, clock-gating and inactive period state minimisation for low power usage without compromising performance. The processor clock is generated by a PLL which can be reprogrammed dynamically, enabling power consumption to be minimised for specific applications.