--- 产品详情 ---
Rating | Catalog |
Operating temperature range (C) | -40 to 85 |
- Digital Audio Processor
- Fully Programmable With Graphical, Drag-and-Drop PurePath Studio?
Software Development Environment - 135-MHz Operation
- 48-Bit Data Path With 76-Bit Accumulator
- Hardware Single-Cycle Multiplier (28 × 48)
- Five Simultaneous Operations Per Clock Cycle
- Usable 768 Words Data RAM (48 Bit), Usable 1K Coefficient RAM (28 Bit)
- Usable 2.5K Program RAM
- 360 ms at 48 kHz, 17K Words 24-Bit Delay Memory
- Slave Mode Fs is 44.1 kHz and 48 kHz
- Master Mode Fs is 48 kHz
- Analog Audio Input/Output
- 10:1 Stereo Analog Input MUX
- Stereo Analog Pass-Through Channel
- Stereo, Single-Ended ADC (93 dB DNR Typical)
- Six Single-Ended DACs (97 dB DNR Typical)
- Stereo Headphone Amplifier, 24-mW Power Output into 16 Ω, 100 pF
- Digital Audio Input/Output
- Three Synchronous Serial Audio Inputs (Six Channels)
- Two Synchronous Serial Audio Outputs (Four Channels)
- Input and Output Data Formats: 16-, 20-, or 24-Bit Data Left, Right, and I2S
- SPDIF Transmitter
- System Control Processor
- Embedded 8051 WARP Microprocessor
- Programmable Using Standard 8051 C Compilers
- Four Programmable GPIO Pins
- General Features
- Two I2C Ports for Slave or Master Download
- Single 3.3-V Power Supply
- Integrated Regulators
- APPLICATIONS
- Flat-Screen TVs
- MP3 Players/Music Phone Docks
- Speaker Bars
- Mini/Micro Component Systems
- Automotive Head Units
- Musical Instruments
PurePath Studio, PowerPAD are trademarks of Texas Instruments.
The TAS3208 is a highly-integrated audio system-on-chip (SOC) consisting of a fully-programmable 48-bit digital audio processor, 10:1 stereo analog input MUX, stereo ADC, six DACs, and other analog functionality. The TAS3208 is programmable with the graphical PurePath Studio? suite of DSP code development software. PurePath Studio is a highly intuitive, drag-and-drop development environment that minimizes software development effort while allowing the end user to utilize the power and flexibility of the TAS3208’s digital audio processing core.
TAS3208 processing capability includes speaker equalization and cross over, volume/bass/treble control, signal mixing/MUXing/splitting, delay compensation, dynamic range compression, and many other basic audio functions. Audio functions such as matrix decoding, stereo widening, surround sound virtualization and psychoacoustic bass boost are also available with either third party or TI royalty-free algorithms.
The TAS3208 contains a custom-designed, fully-programmable 135-MHz, 48-bit digital audio processor. A 76-bit accumulator ensures that the high precision necessary for quality digital audio is maintained during arithmetic operations. A stereo, 93-dB DNR ADC and six 97-dB DNR DACs ensure that high-quality audio is maintained through the whole signal chain.
The TAS3208 is composed of seven functional blocks:
- Clock and serial data interface
- Analog input and output
- M8051 WARP controller, serial control interface, and device control
- Audio DSP – digital audio processing
- Power supply
- Internal references
Figure 1 shows the functional structure of the TAS3208.
The TAS3208 may be used with an external asynchronous sample rate converter (ASRC) to accommodate asynchronous serial inputs at different sampling rates (see Figure 2).
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