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Car Audio

For automotive audio systems, there is increasing consumer demand for the ability to play back music stored in digital audio players, cell phones and smartphones and to support Bluetooth connectivity. Toshiba offers ICs that meet these market needs.

Block Diagram of a Car Audio System

This figure shows the block diagram of a car audio system.

Roadmap

This figure shows the roadmap of car audio systems.

TC94A93MFGTC94A92FGTC94B16FGTMPM32DC2DFGTMPM32BC2DFGTMPM32EC1EFGTMPM32FC1EFG

CD Servo and Compressed Audio Decoder ICs

CD Servo processor

Microcontrollers for Automotive Audio Applications

CD Servo and Compressed Audio Decoder ICs: TC94A92FG / TC94A93MFG

The TC94A92FG and TC94A93MFG audio playback processors support both CD and compressed audio formats. The TC94A93MFG contains a 16-Mbit DRAM in a system-in-package (SiP) to provide shockproof capability necessary for car audio applications. The TC94A92FG and TC94A93MFG are pin-compatible and interchangeable with each other. This makes it possible to use the same pc board to create CD/MP3 players with and without shockproof capability. Additionally, the TC94A92FG and TC94A93MFG can take audio bit streams from USB memory sticks and portable music players like iPod. These CD/MP3 processors can be configured to support a variety of media according to your product specification.

This is the block diagram of CD/MP3 Processors with Audio Decoders: TC94A92FG / TC94A93MFG .

CD Section
  • CD servo with an RF head amplifier + DAC; 1×/2× CLV
DSP Section
  • 24-bit DSP core
  • ISO9660 disc authoring
  • 1-Mbit SRAM (for data buffering and file management)
  • Multiple decoders (MP3, WMA, AAC)
Audio Input and Output
  • 2-channel DAC-out
  • Digital-out (I2S, S/PDIF)
Power Supplies
  • 3.3 V/1.5 V

CD Servo Processor: TC94B16FG

The TC94B16FG is a single-chip digital servo processor with an RF amplifier for CD player applications.

This is the block diagram of CD Servo Processors with Audio DSP: TC94B16FG.

CD Section
  • CD servo with an RF head amplifier + DAC; 1×/2×/4× CLV
DSP Section
  • 24-bit DSP core
  • ISO9660 disc authoring
Audio Input and Output
  • 2-channel DAC-out
  • Digital-out (I2S)
Power Supplies
  • 3.3 V

Microcontrollers for Bluetooth, USB, CD and System Control Applications:
TMPM32BC2DFG / TMPM32DC2DFG

The TMPM32BC2DFG and TMPM32DC2DFG provide not only various functions for audio control that are also found in conventional MCUs, but also Bluetooth audio and hands-free phone calling capabilities when combined with the Bluetooth Host Controller Interface (HCI) IC. The integrated DSP performs various high-workload signal processing and reduces the CPU workload.

This is the block diagram of MCUs for Bluetooth, USB, CD and System Control Applications: TMPM32BC2DFG / TMPM32DC2DFG.

ARM Cortex-M3 Core
  • Internal operating voltage: 1.1 to 1.3 V
  • I/O: 3.0 to 3.6 V
  • Maximum operating frequencies: ARM Cortex-M3 core: 96 MHz max
  • On-chip DSP: 144 MHz max
  • 176-pin LQFP (20 mm × 20 mm, 0.4 mm lead pitch)
On-Chip Peripherals
  • Digital signal processor for audio decoding, echo cancellation and noise reduction
  • USB embedded host (Full-Speed): 1 channel
  • SD host controller: 1 channel
  • Serial flash interface: 1 channel
  • DMA controller: 16 channels
  • 16-bit timer: 8 channels
  • RTC : 1 channel
  • UART/SIO: 4 channels
  • UART: 2 channels
  • I2C/SIO: 5 channels
  • SSP: 2 channels
  • CAN: 2 channels (Embedded only TMPM32DC2DFG)
  • Remote control signal preprocessor (RMC)
  • 10-bit A/D converter: 8 channels

Microcontrollers for USB and System Control Applications: TMPM32EC1EFG / TMPM32FC1EFG

The TMPM32EC1EFG and TMPM32FC1EFG microcontrollers incorporate a system controller and a digital signal processor (DSP) for decoding compressed audio, which are independent of each other to achieve real-time processing.

This is the block diagram of MCU for USB and System Control Applications: TMPM32EC1EFG / TMPM32FC1EFG.

ARM Cortex-M3 Core
  • Internal operating voltage: 1.1 to 1.3 V
  • I/O: 3.0 to 3.6 V
  • Maximum operating frequencies: ARM Cortex-M3 core: 96 MHz max
  • On-chip DSP: 144 MHz max
  • 144-pin LQFP (20 mm × 20 mm, 0.5 mm lead pitch)
On-Chip Peripherals
  • Digital signal processor for audio decoding
  • USB embedded host (Full-Speed): 1 channel
  • SD host controller: 1 channel
  • Serial flash interface: 1 channel
  • DMA controller: 16 channels
  • 16-bit timer: 8 channels
  • RTC : 1 channel
  • UART/SIO: 4 channels
  • UART: 2 channels
  • I2C/SIO: 5 channels
  • SSP: 2 channels
  • CAN: 2 channels (Embedded only TMPM32FC1EFG)
  • Remote control signal preprocessor (RMC)
  • 10-bit A/D converter: 8 channels

* ARM and Cortex are registered trademarks of ARM Limited (or its subsidiaries) in the EU and/or elsewhere.

* Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and any use of such trademarks by Toshiba is under license.

* WMA (Windows Media Audio) and Windows Media are trademarks or registered trademarks of Microsoft Corporation in the US and other countries.

* iPod, iPhone are trademarks of Apple Inc. registered in the US and other countries.

* System and product names mentioned herein may be trademarks or registered trademarks of respective companies or organizations.

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.