參數(shù)資料
型號: TAS5612PHDR
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 125 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
封裝: GREEN, HTQFP-64
文件頁數(shù): 6/26頁
文件大?。?/td> 1718K
代理商: TAS5612PHDR
SLAS710 – JUNE 2010
www.ti.com
APPLICATION INFORMATION
PCB MATERIAL RECOMMENDATION
FR-4 Glass Epoxy material with 2oz. (70mm) is recommended for use with the TAS5612A. The use of this
material can provide for higher power output, improved thermal performance, and better EMI margin (due to
lower PCB trace inductance.
PVDD CAPACITOR RECOMMENDATION
The large capacitors used in conjunction with each full-bridge, are referred to as the PVDD Capacitors. These
capacitors should be selected for proper voltage margin and adequate capacitance to support the power
requirements. In practice, with a well designed system power supply, 1000mF, 50V support more applications.
The PVDD capacitors should be low ESR type because they are used in a circuit associated with high-speed
switching.
DECOUPLING CAPACITOR RECOMMENDATION
To design an amplifier that has robust performance, passes regulatory requirements, and exhibits good audio
performance, good quality decoupling capacitors should be used. In practice, X7R should be used in this
application.
The voltage of the decoupling capacitors should be selected in accordance with good design practices.
Temperature, ripple current, and voltage overshoot must be considered. This fact is particularly true in the
selection of the 0.1mF that is placed on the power supply to each half-bridge. It must withstand the voltage
overshoot of the PWM switching, the heat generated by the amplifier during high power output, and the ripple
current created by high power output. A minimum voltage rating of 50V is required for use with a 32.5v power
supply.
SYSTEM DESIGN RECOMMENDATIONS
The following schematics and PCB layouts illustrate best practices in the use of the TAS5612A.
14
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TAS5612A
相關PDF資料
PDF描述
TAS5613ADKD 150 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44
TAS5613PHDR 150 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
TAS5613PHD 150 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
TAS5613APHDR 150 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
TAS5613APHD 150 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
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