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B250W48A106XXG Datasheet, PDF (1/30 Pages) ON Semiconductor – High-Performance Programmable Audio Processing System | |||
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BELASIGNA 250
High-Performance
Programmable Audio
Processing System
Introduction
BELASIGNA® 250 is a complete programmable audio processing
system, designed specifically for ultraâlowâpower embedded and
portable digital audio systems. This highâperformance chip builds on
the architecture and design of BELASIGNA 200 to deliver
exceptional sound quality along with unmatched flexibility.
BELASIGNA 250 incorporates a full audio signal chain, from
stereo 16âbit A/D converters or digital interfaces to accept the signal,
through the fully flexible digital processing architecture, to stereo
analog lineâlevel or direct digital power outputs that can connect
directly to speakers.
BELASIGNA 250 features flexible clocking options and smart
power management features including a soft powerâdown mode. Two
DSP subsystems operate concurrently: the RCore, which is a fully
software programmable DSP core, and the weighted overlapâadd
(WOLA) filterbank coprocessor, which is a dedicated, configurable
processor that executes timeâfrequency domain transforms and other
vectorâ based computations. A full range of other hardwareâassisted
features, such as audioâtargeted DMA complete the system.
A comprehensive and easyâtoâuse suite of development tools,
handsâon training and full technical support are available to enable
rapid development and introduction of highly differentiated products
in record time.
Key Features
⢠Unique Parallelâprocessing Architecture: A Complete DSPâbased,
Mixedâsignal Audio System Consisting of a 16âbit Fully
Programmable DualâHarvard 16âbit DSP Core, a Patented,
Highâresolution Block Floatingâpoint WOLA Filterbank Coprocessor,
and an Input/Output Processor (IOP) along with Several Peripherals
and Interfaces which Optimize the Architecture for Audio Processing
⢠Integrated Converters and Powered Output: Minimize Need for
External Components
⢠Ultraâlow Power Consumption: Under 5 mA at 20 MHz to Support
Advanced Operations; 1.8 V Supply Voltage
⢠âSmartâ Power Management: Including Low Current Standby
Mode Requiring Only 0.05 mA
⢠Flexible Clocking Architecture: Supports Speeds up to 50 MHz
⢠Full Range of Configurable Interfaces: Including: I2S, PCM,
UART, SPI, I2C, TWSS, GPIO
⢠Excellent Fidelity: 88 dB System Dynamic Range, Exceptionally
Low System Noise and Low Group Delay
⢠Support for IP Protection: to Prevent Unauthorized Access to
Algorithms and Data
⢠Available in CABGA and LFBGA Package Options
⢠These Devices are PbâFree, Halogen Free/BFR Free and are RoHS
Compliant
http://onsemi.com
LFBGAâ64
PLASTIC
CASE 504
CABGAâ57
PLASTIC
CASE 566AA
MARKING DIAGRAMS
XXXXYZZ
BELASIGNA
250
0W888â002
AAAA
XXXXYZZ
Bâ250
0W633
AAAA
0W888â002 = 64 LFBGA Option
0W633 = 57 CABGA Option
XXXX = Date Code
Y
= Assembly Plant Identifier
ZZ
= Traceability Code
AAAA = Country of Assembly
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 28 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
1
July, 2012 â Rev. 9
Publication Order Number:
B250/D
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