Texas Instruments TAS5518 Power Supply PSU Interface J901 and J900, Recommended Supply Voltages

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Power Supply (PSU) Interface (J901 and J900)

2.1Power Supply (PSU) Interface (J901 and J900)

The TAS5518-5152K8EVM module must be powered from external power supplies. High-end audio performance requires a stabilized power supply, with low ripple voltage and low output impedance.

Note: The length of power-supply cable must be minimized. Increasing the 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 resistance. Check the recommended maximum supply voltage in the TAS5152 data sheet.

Table 2-1. Recommended Supply Voltages

DESCRIPTION

VOLTAGE LIMITATIONS

CURRENT

(4-ΩLOAD)

RECOMMENDATIONS

 

System power supply

15 V to 20 V

0.3 A

Output-stage power supply

0 V to 35 V

6 A(1)

(1)The rated current corresponds to two-channel full scale (80 W each), which is adequate for a standard eight-channel amplifier design.

The recommended TAS5152 power-up sequence is shown in Figure 2-1 . For proper TAS5152 operation, the RESET signal should be kept low during power up. RESET is pulled low during power up for 200 ms by the onboard reset generator (U73).

System￿Power￿Supply

Output-Stage￿Power￿Supply

RESET

>1￿ms

Figure 2-1. Recommended Power-Up Sequence

PCB￿Connector

(Top￿View)

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

2

 

 

 

 

 

1

 

 

 

 

 

 

 

 

Figure 2-2. J901 and J900 Pin Numbers

 

 

Table 2-2. J901 Pin Description

 

PIN

NET NAME

DESCRIPTION

 

NO.

AT SCHEMATICS

 

 

 

1

PVDD

Output-stage power supply

 

2

SYSTEM

System power supply

 

3

GND

Ground

 

4

GND

Ground

12

System Interfaces

 

 

 

SLEU074 –June 2006

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Contents Users Guide Submit Documentation Feedback Contents List of Figures How to Use This Manual Read Me FirstAbout This Manual Information About Cautions and WarningsRelated Documentation From TI TrademarksRelated Documentation From TI TAS5518-5152K8EVM Features PCB Key Map OverviewTAS5518-5152K8EVM Features Integrated PurePath Digital Amplifier SystemPCB Key Map Physical Structure for TAS5518-5152K8EVM Rough OutlinePCB Key Map Power Supply PSU Interface J901 and J900 System InterfacesPower Supply PSU Interface J901 and J900 Recommended Supply VoltagesJ901 Pin Description PSU Control Interface J902 J900 Pin Description1J902 Pin Description Loudspeaker Connectors J101-J107 J101-J107 Pin Numbers J101-J107 Pin DescriptionHeadphone Connector J700 Control Interface J40J40 Pin Description Digital Audio Interface J60 J60 Pin DescriptionShort-Circuit Protection and Fault-Reporting Circuitry ProtectionShort-Circuit Protection and Fault-Reporting Circuitry Fault ReportingTAS5152 Warning/Error Signal Decoding Evaluation BOARD/KIT Important Notice FCC WarningImportant Notice

TAS5518 specifications

Texas Instruments TAS5518 is a highly integrated audio amplifier designed to deliver superior sound quality and efficient power management for a variety of applications. This device is particularly well-suited for use in consumer electronics, including televisions, soundbars, and wireless audio systems. One of the standout features of the TAS5518 is its ability to provide a high level of audio fidelity while integrating seamlessly into compact designs.

At the heart of the TAS5518 is its advanced digital signal processing (DSP) technology. This allows for precise audio management, enabling the amplifier to optimize sound quality across different playback scenarios. With built-in equalization and dynamic range compression, the TAS5518 can enhance audio output by automatically adjusting the sound profile to suit the content. This results in a more immersive listening experience, whether users are watching movies or listening to music.

The TAS5518 is equipped with multiple channels, offering up to 8 channels of output. This feature makes it an ideal choice for multi-channel audio applications, where immersive sound is paramount. The device supports various speaker configurations, allowing designers the flexibility to create customized setups that meet the specific needs of their products.

In terms of power management, the TAS5518 incorporates various technologies aimed at improving efficiency. It features a class-D amplifier architecture, which not only minimizes power consumption but also reduces heat generation. This efficient operation contributes to longer battery life in portable devices and lower energy costs in stationary applications.

Another key characteristic of the TAS5518 is its compatibility with high-resolution audio formats. This ensures that the amplifier can reproduce high-quality audio with excellent clarity and accuracy. Additionally, the TAS5518 supports various input formats, making it versatile for a wide range of audio sources.

On the connectivity front, it offers digital interfaces that make integration with other components straightforward. This capability allows for simplified design and reduced development time for engineers working on audio solutions.

Overall, the Texas Instruments TAS5518 is a compelling choice for engineers seeking to enhance audio performance in their products. With its focus on audio precision, power efficiency, and versatility, it stands out as a valuable component in modern audio systems. Its combination of features and characteristics ensures that end users enjoy a high-fidelity audio experience across different applications.
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