Texas Instruments TAS5601 USB Interface, Digital Audio Interface Spdif J1/OPTO, ADC Interface

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Installation

∙Connect the left speaker wires to the corresponding metal binding posts marked J2 and J4 on the TAS5601EVM board.

∙Connect the right speaker wires to the corresponding metal binding posts marked J6 and J8 on TAS5601EVM board.

For SE:

∙Connect the four sets of speaker wires to the pairs J2-J3, J4-J5, J6-J7, and J8-J9.

3.2.3USB Interface

The TAS5601 registers are accessed through I2C bus lines SDA and SCL. The USB circuit and USB connector on the MC5601 board facilitates the connection between a host computer and the device. The EVM USB circuit is powered by the 5-V USB line of the host PC, and is independent of the power supplies available on the board. The USB device used is a TAS1020B from Texas Instruments.

3.2.4Digital Audio Interface SPDIF (J1/OPTO)

The Digital Audio Interface accepts digital audio data using the I2S protocol. See the TAS5706 data sheet for more information.

The OPTO connector is the SPDIF interface on the MC5601 board. When the optical cable is connected and the signal source is powered up, verify that the SPDIF lock indicator (blue LED3) illuminates, confirming that there is a viable signal available to the device. Install the four clock/data jumpers across the middle pin and the pin marked SPDIF.

For detailed information on how the data and clocks are provided to the TAS5601, see the schematic appearing at the end of this document and the DIR9001 device data sheet.

3.2.5ADC Interface

In the absence of a digital signal source, the PCM1808 ADC may be used to convert an analog audio signal to a digital signal to the TAS5601. The DIR9001 still provides clock signals to the ADC in this process. The DIR9001 oscillator frequency (Y2) determines the sampling frequency in the absence of a digital signal. If the OSC frequency is 24 MHz, the sampling frequency is set at 96 kHz; if OSC is set at 12 MHz, the sampling frequency defaults to 48 kHz when there is no signal on the SPDIF input terminals. A 12-MHz crystal is installed on the MC5601 board. The ADC is an additional feature of this board to provide flexibility in sourcing an audio signal to the TAS5601. Review the PCM1808 data sheet for a detailed description of the ADC on this EVM. Install the jumper on SDW2 across the middle pin and the pin marked ADC.

3.2.6Board Power-Up General Guidelines

Connect the MC5601 and the TAS5601EVM boards by locating pin 1 on each board, indicated by a small white triangle. The TAS5601EVM plugs into the MC5601 board. Pin 1 on each board should be connected to each other.

Install the EVM software on the PC before powering up the board. After connecting the loudspeakers or other loads, power supplies, and the data line, power up the 5-V power supply first; then power up the PVDD power supply. It is recommended initially to set the PVDD level to 10 V, then ramp it up to 20 V to verify cable connections.

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TAS5601 Digital Power Amplifier With MC5601 Modulator Kit

SLOU219–February 2008

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Contents TAS5601 Digital Power Amplifier With MC5601 Modulator Kit Related Documentation from Texas Instruments Purpose of This Document TAS5601EVM and MC5601 Features EVM Controller Board MC5601Recommended Power Supplies Software InstallationEVM Installation Loudspeaker ConnectorsDigital Audio Interface Spdif J1/OPTO Board Power-Up General GuidelinesUSB Interface ADC InterfaceSetup Tab Select 2-Channel BTL BD modeGetting Started Volume Tab All Channel Shutdown Advanced Features EQ and DRCEQ Viewer Tab 3 EQC/DRC Demo EQ/DRC Demo Tab 4 I 2C Tab4.1 I 2C Writes and Reads Volume Tab Volume Control TabTI ALE Guide for TAS570x OverviewSelect Device Edit EQ Filter Display the Graph Generate EQ Filter Data Edit and Generate DRC Data Save EQ Data to FileEdit and Generate Alpha Filter Data Save EQ/DRC/Alpha Data to File Save DRC Data to FileSwitches TAS5601EVM Board Layouts Top Silk Screen ViewSchematics Bill of MaterialsBill of Materials for TAS5601EVM BTL/SE Amplifier PA1USB Reset USB InterfaceSpdif Receiver Jumper NotesAnalog to Digital Converter Project TAS5601EVM4 Controller BoardTAS5702 I/O Power Supplies LOW Voltage Power InputsRelated Documentation From Texas Instruments Related Documentation from Texas InstrumentsEvaluation BOARD/KIT Important Notice FCC WarningImportant Notice

TAS5601 specifications

The Texas Instruments TAS5601 is a high-performance class D audio amplifier designed for various audio applications, ranging from home audio systems to professional audio equipment. This device is particularly renowned for its efficiency, sound quality, and compact design. The TAS5601 is specifically engineered to drive passive and active speakers, allowing users to achieve high power output and excellent sound fidelity.

One of the key features of the TAS5601 is its ability to deliver up to 50 watts of output power per channel, making it suitable for driving demanding loads. It operates within a supply voltage range of 15V to 30V, allowing for flexibility in various application environments. The amplifier’s efficiency is a significant advantage as it minimizes heat generation, enabling cooler operation and reducing the need for extensive thermal management solutions.

Technology-wise, the TAS5601 employs a proprietary, high-resolution pulse-width modulation (PWM) technique. This methodology ensures excellent linearity and low total harmonic distortion, translating into crystal-clear audio reproduction. The device also utilizes a robust feedback mechanism that adjusts the output in real time, further improving sound quality under varying load conditions.

The TAS5601 features integrated protections for over-current, over-temperature, and short-circuit scenarios, ensuring reliable performance and longevity. This makes it an excellent choice for both commercial and consumer audio products.

Another notable characteristic is the inclusion of an I2C interface, which offers enhanced programmability and flexibility. With this feature, designers can configure settings such as gain controls and filters, thus optimizing the amplifier for specific applications and listener preferences.

The TAS5601 supports multiple speaker configurations, including a dual-channel operation in a stereo setup or bridging mode for higher output in mono applications. It is designed to work seamlessly with various digital audio sources, allowing for versatility in integration with modern audio systems.

With its advanced features, state-of-the-art technologies, and robust performance, the Texas Instruments TAS5601 is a leading choice for audio amplification. Whether for home theater systems, portable speakers, or professional audio installations, the TAS5601 delivers exceptional sound quality while being energy efficient and adaptable to a wide range of needs.
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