DAB SoC GL314X

The DAB receiver on one chip

Features

• Cost-effective, minimal number of external components
• Low power consumption
• Excellent input sensitivity
• Service following engine

Applications

• Portable DAB/DAB+ receivers
• Handheld receivers
• Wireless speakers with DAB+
• Hi-fi systems
• Basis for customer-specific receiver modules

Description

The DAB chips of the GL314X series, built by the Korean manufacturer Glovane, integrate as so called systems on a chip (SoC) various functions belonging to a DAB receiver on one 11 mm × 11 mm BGA chip. On the chip are integrated:

• the analogue RF front end for DAB in band III and L-band and for FM in band II,
• the demodulators for DAB and FM,
• a 32 bit RISC controller with up to 100 MHz clock rate and real time operating system (RTOS)
• audio decoders for DAB (MUSICAM), DAB+ (HE-AAC V2), as well as for MP3, WMA, and OGG,
• an interface controller for digital audio in- and outputs,
• a digital analogue converter with analogue audio output,
• an USB interface,
• 2 or 8 MB memory resp. with the appropriate controller,
• a display controller for the direct connection of an LCD,
• an analogue digital converter for the monitoring of an external battery and to interface a key matrix,
• an internal DC linear voltage regulator (LDO) reducing the number of required external supply voltages.

With their integrated RF tuners and low power consumption of only 103 mW in DAB+ operation, the SoCs of this series are predestined for portable and mobile battery powered devices. The GL3142 is most favourable for mobile applications. In addition to the functions of the GL3140, this chip offers seamless service following between DAB and FM as well as functions for recording and playback. With this feature set, this chip is suitable as well for retrofit receivers to upgrade older car radios with DAB+.

Table 1: Comparison of the members of the GL314X series

	GL3140	GL3142
Package	169B, 11 mm × 11 mm (pin compatible)
Support	DAB/DAB+/DMB-A/FM-RDS
		MOT/SLS
		Recording/Playback,
		Seamless DAB-FM Service Following
SDRAM	2 MB	8 MB

Glovane's business offer comprises not only the SoCs, receiver modules of the GVM140X series, that are derived from them, and an appropriate development kit, but as well development services for customer-specific hard- and software adaptations.

In software aspects, in addition to the audio decoding, Fast Information Channel (FIC) decoding, and decoding of the data services, MOT and Slidshow, is provided by the software development kit.