Product category:
Communications ICs (Wired)
News Release from: Panasonic Industrial Europe | Subject: MN66720UC
Edited by the Electronicstalk Editorial
Team on 13 June 2001
Low power bonus for single-chip DAB
baseband LSI
Matsushita Electric Industrial Co has developed an advanced single-chip baseband signal processing LSI for digital audio broadcasting (DAB) that is fully compliant with ETS300401.
Matsushita Electric Industrial Co has developed an advanced single-chip baseband signal processing LSI for digital audio broadcasting (DAB) that is fully compliant with the ETSI DAB standard, ETS300401 Featuring the industry's lowest power consumption of only 150mW, the MN66720UC exploits its advanced power management features to enable the first battery-powered portable DAB receivers in the industry with two-channel simultaneous audio reproduction capability
This article was originally published on Electronicstalk on 16 Mar 2001 at 8.00am (UK)
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Sample shipments are scheduled to begin the end of May 2001 at a price of $40.00.
A tight integration of two-channel simultaneous audio decoding, small chip count, and the lowest power consumption in the industry have all been achieved through Panasonic's original hybrid architecture of high-performance DSPs and other advanced hardware.
With conventional LSIs, announcement services such as emergency broadcasts, traffic information, or weather reports breaking forced the LSI to stop decoding the current program and shift to decoding the "high priority" announcement service instead.
The innovative two-channel simultaneous audio decoding in this new LSI enables listeners to decode both regular programs and announcement services at the same time, including "background channel" recording as well.
The new LSI also incorporates a feature known as ASSS (Automatic Symbol Selection System) that automatically extracts and decodes only those symbols required for the currently selected services.
By using only those internal functions that are absolutely necessary to decode the current service, and shutting down the rest, the lowest possible power consumption can be achieved - at 150mW the lowest in the industry.
The conventional DAB baseband LSI requires 450mW with the use of an external 4Mbit DRAM for de-interleaving.
This new LSI incorporates 3Mbit of embedded DRAM to enable fast and efficient on-chip de-interleaving.
No external DRAM interfaces are required, reducing both component mounting space and power consumption.
An integrated on-chip ADC for the IF input signal, as well as a high precision on-chip power supply regulator, further minimise expensive external components.
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