Overview
The TAS3308PZTR, produced by Texas Instruments, is a highly-integrated digital audio processor with analog interface. This system-on-chip (SOC) features a fully-programmable 48-bit digital audio processor, a 10:1 stereo analog input MUX, a stereo ADC, and six PWM output channels. The device is designed to handle a wide range of audio processing tasks, including speaker equalization, cross-over, volume/bass/treble control, signal mixing/MUXing/splitting, delay compensation, and dynamic range compression. It also supports advanced audio functions such as matrix decoding, stereo widening, surround sound virtualization, and psychoacoustic bass boost through either third-party or TI royalty-free algorithms.
The TAS3308 is programmable using the graphical PurePath Studio™ software, a drag-and-drop development environment that simplifies software development while leveraging the power and flexibility of the TAS3308's digital audio processing core.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Digital Supply Voltage (DVDD) | 3.0 | 3.3 | 3.6 | V |
| Analog Supply Voltage (AVDD) | 3.0 | 3.3 | 3.6 | V |
| PWM Supply Voltage (DVDD_PWM) | 3.0 | 3.3 | 3.6 | V |
| Operating Ambient Air Temperature (TA) | -20 | 25 | 70 | °C |
| Junction Temperature (TJ) | 0 | 96 | °C | |
| Digital Supply Current (IDVDD) at 135 MHz | 100 | - | 160 | mA |
| Analog Supply Current (IAVDD) at 135 MHz | 10 | - | 40 | mA |
| ADC Dynamic Range (DNR) | - | - | 100 dB | - |
| PWM Output Dynamic Range (DNR) | - | - | 105 dB | - |
Key Features
- Digital Audio Processor: Fully-programmable 48-bit digital audio processor with a 76-bit accumulator and hardware single-cycle multiplier.
- Digital Audio Input/Output: Three synchronous serial audio inputs (six channels) and two synchronous serial audio outputs (four channels).
- Analog Audio Input/Output: 10:1 stereo analog input MUX, stereo ADC with 100 dB DNR, and six differential PWM outputs with 105 dB DNR.
- System Control Processor: Embedded 8051 WARP microprocessor with 2.8k program RAM and 1k data RAM words.
- Programmability: Programmable using the graphical PurePath Studio™ software and standard 8051 C compilers.
- Power Supply: Single 3.3-V power supply with integrated regulators.
- Interface: Two I2C ports for slave or master mode, and four programmable GPIO pins.
- Audio Functions: Supports speaker equalization, cross-over, volume/bass/treble control, signal mixing/MUXing/splitting, delay compensation, and dynamic range compression.
Applications
- Flat-Screen Televisions
- MP3 Player/Music Phone Docks
- Speaker Bars
- Mini/Micro-Component Systems
- Automotive Head Units
- Musical Instruments
Q & A
- What is the TAS3308PZTR?
The TAS3308PZTR is a highly-integrated digital audio processor with analog interface produced by Texas Instruments.
- What are the key features of the TAS3308PZTR?
Key features include a fully-programmable 48-bit digital audio processor, 10:1 stereo analog input MUX, stereo ADC, six PWM output channels, and an embedded 8051 WARP microprocessor.
- What is the operating voltage range for the TAS3308PZTR?
The operating voltage range is 3.0 V to 3.6 V for both digital and analog supplies.
- What is the dynamic range of the ADC and PWM outputs?
The ADC has a dynamic range of 100 dB, and the PWM outputs have a dynamic range of 105 dB.
- What software is used to program the TAS3308PZTR?
The device is programmable using the graphical PurePath Studio™ software and standard 8051 C compilers.
- What are some common applications of the TAS3308PZTR?
Common applications include flat-screen televisions, MP3 player/music phone docks, speaker bars, mini/micro-component systems, automotive head units, and musical instruments.
- What is the maximum junction temperature for the TAS3308PZTR?
The maximum junction temperature is 96°C.
- How many GPIO pins does the TAS3308PZTR have?
The device has four programmable GPIO pins.
- What is the clock frequency of the digital audio processor?
The clock frequency is 135 MHz.
- Does the TAS3308PZTR support I2C communication?
Yes, it supports two I2C ports for slave or master mode.
