Texas Instruments TAS5066PAG PSU Interface J901, 1. Recommended Power Supplies, Recommendations

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PSU Interface (J901)

2.1 PSU Interface (J901)

The TAS5066−511 1D6EVM module must be powered from one or two exter- nal regulated power supplies. High audio performance requires a stabilized output stage power supply with low ripple voltage and low output impedance.

Note:

The length of power supply cable must be minimized. Increasing length of PSU cable is equal to increasing the distortion for the amplifier at high output levels and low frequencies.

Maximum output stage supply voltage depends of the speaker load resist- ance. Please check the recommended maximum supply voltage in the TAS5111 datasheet.

Table 2−1. Recommended Power Supplies

Description

Voltage Limitations

Current

 

(4-WLoad)

Recommendations

 

 

 

System power supply

15 to 20 V

0.25 A

 

 

 

Output power stage supply

0 to 29.5 V

5.5 A†

†The rated current corresponds to 2-channel full scale (70 W each) or 6-channel 1/8 scale (9 W each), which most likely is adequate for a standard 6-channel amplifier design.

Figure 2−1 shows the recommended TAS5111 power-up sequence. For prop- er TAS5111 operation the RESET signal must be kept low during power-up. RESET is pulled low during power-up for 200 ms by the on-board reset genera- tor (U903).

Figure 2−1. Recommended Power-Up Sequence

System power supply

Output stage power supply

RESET

>1 ms

2-2

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Contents User’s Guide Important Notice Products ApplicationsEVM Important Notice EVM Warnings and Restrictions Read This First About This ManualRelated Documentation from Texas Instruments Part Number Literature NumberContents Figures TablesTAS5066-5111D6EVM Features PCB Key Map OverviewTAS5066-5111D6EVM Features −1. Complete PurePath Digital E SystemPCB Key Map −2. Physical Structure for the TAS5066-5111D6EVMPage System Interfaces Description Voltage Limitations Current −1. Recommended Power SuppliesPSU Interface J901 RecommendationsPin Number Net-Name at Schematics Description −3. J903 Pin DescriptionPSU Control Interface J902 Loudspeaker Connectors J100 − J600 Control Interface J50 −6. J50 Pin Description−8. Clock Rates Digital Audio Interface J51−7. J51 Pin Description LrclkPWM Timing, Interchannel Delay Registers Register Description Value hex AddressProtection −1. TAS5111 Error Signal Decoding Short Circuit Protection and Fault Reporting CircuitryDevice Fault Reporting OTW

TAS5066PAG specifications

The Texas Instruments TAS5066PAG is a highly efficient Class D audio amplifier designed for high-performance audio applications. Known for its advanced technology and robust features, it is part of a series that is widely used in home audio systems, professional sound equipment, and automotive audio devices.

One of the standout features of the TAS5066PAG is its ability to deliver high power output while maintaining low distortion levels. It is capable of providing up to 300W per channel at 4 ohms, making it a powerful solution for driving high-performance loudspeakers. With a total harmonic distortion plus noise (THD+N) rating as low as 0.01%, the device assures clean and clear audio reproduction, which is critical in high-fidelity audio systems.

The TAS5066PAG utilizes a digital input mechanism that supports various audio formats, including I2S and PCM, which allows for versatile integration with various digital audio sources. This feature streamlines the design process for system builders and reduces power consumption by eliminating the need for multiple digital-to-analog converters.

Another significant technological advantage of the TAS5066PAG is its integrated power stage. This integration simplifies circuit design by reducing the number of external components required, subsequently enhancing reliability and reducing the overall size of the audio system. Additionally, the device includes advanced thermal management features that ensure safe and stable operation under varying load conditions, which is especially important for high-power applications.

The TAS5066PAG also offers flexible feedback and control options. Its adaptive feedback loop technology provides real-time adjustments to the audio signal, further improving performance and reducing distortion. This adaptability makes it suitable for a wide range of uses, from consumer electronics to professional systems.

In summary, the Texas Instruments TAS5066PAG is a versatile and powerful Class D amplifier that combines high-performance audio output with advanced digital processing capabilities. Its low distortion, high efficiency, and integrated design elements make it an excellent choice for audio engineers and designers focusing on creating high-quality audio systems. Whether used in home theaters, musical instruments, or automotive audio, the TAS5066PAG sets a high standard for modern audio amplification solutions.
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