STA013$013TR

Encoders, Decoders, Converters Overview

The STA013 is a single-chip MPEG Layer III audio decoder supporting ISO/IEC 11172-3, ISO/IEC 13818-3.2, and the MPEG 2.5 extension. It decodes stereo, dual channel, and mono streams with sampling frequencies ranging from 8 kHz to 48 kHz and bitrates from 8 kbit/s to 320 kbit/s. The device features digital volume control, bass/treble adjustment, and an I2C interface for ancillary data extraction. Powered by low-power 3.3V CMOS technology, it consumes approximately 85 mW at 2.4V. Input clocks are supported at 10 MHz, 14.31818 MHz, or 14.7456 MHz via external sources or internal oscillators.

Encoders, Decoders, Converters Feature Summary

• Integrated MPEG Layer III decoding core compatible with MPEG 1, MPEG 2, and MPEG 2.5 standards.
• Programmable serial PCM output interface adaptable to various DAC architectures.
• Built-in PLL system for internal clock generation and oversampling clock output.
• I2C control bus enabling software configuration of registers and extraction of ancillary data.

Encoders, Decoders, Converters Applications

• PC sound cards
• Multimedia players

Encoders, Decoders, Converters Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm that the specific package variant (SO28, TQFP44, or LFBGA) matches the design requirements. Review the official datasheet for absolute maximum ratings and thermal resistance values to ensure proper board layout and heat dissipation strategies are implemented before integration.

Encoders, Decoders, Converters Selection Notes

Select the appropriate package based on available PCB space and mounting preferences: SO28, TQFP44, or LFBGA64. Ensure the host system provides one of the specified input clock frequencies (10 MHz, 14.31818 MHz, or 14.7456 MHz). Verify that the application requires support for MPEG 2.5 low sampling rates if utilizing the extended syntax features defined in the specification.

Encoders, Decoders, Converters Part Context

The STA013 belongs to a family of integrated audio decoders designed for portable and desktop multimedia applications. It serves as a dedicated hardware solution for decompressing MP3 audio streams, reducing the processing load on general-purpose microprocessors. The device integrates necessary clock generation and digital signal processing blocks into a single silicon die.

Encoders, Decoders, Converters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult STMicroelectronics technical support for current alternatives within the same product family or updated generations.

Encoders, Decoders, Converters FAQ

What are the supported sampling frequencies?

The device supports MPEG 1 frequencies (48, 44.1, 32 kHz), MPEG 2 frequencies (24, 22.05, 16 kHz), and MPEG 2.5 extensions (12, 11.025, 8 kHz).

How is the device controlled?

Configuration and status monitoring are performed via an I2C serial interface using a fixed 7-bit device address of 1000011.

What input clock options are available?

The STA013 accepts external input clocks of 10 MHz, 14.31818 MHz, or 14.7456 MHz, or utilizes a built-in industry standard crystal oscillator.