參數(shù)資料
型號: TDA7498
廠商: STMICROELECTRONICS
元件分類: 音頻/視頻放大
英文描述: 100 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
封裝: ROHS COMPLIANT, SSOP-36
文件頁數(shù): 17/29頁
文件大小: 745K
代理商: TDA7498
Applications information
TDA7498
24/29
Doc ID 16107 Rev 4
5.6
Output low-pass filter
To avoid EMI problems, it may be necessary to use a low-pass filter before the speaker. The
cut-off frequency should be larger than 22 kHz and much lower than the output switching
frequency. It is necessary to choose the L and C component values depending on the
loud-speaker impedance. Some typical values, which give a cut-off frequency of 27 kHz, are
shown in Figure 25 and Figure 26 below.
Figure 25.
Typical LC filter for a 8-
speaker
Figure 26.
Typical LC filter for a 6-
speaker
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA7498E 功能描述:音頻放大器 160W 160W Dual BTL ClassD Audio 20mV RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7498ETR 功能描述:音頻放大器 160-Watt 160-Watt Dual BTL Class D Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7498L 功能描述:音頻放大器 80W and 80W Dual BTL Class-D Audio Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7498LTR 功能描述:音頻放大器 80W and 80W Dual BTL Class-D Audio Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7498MV 功能描述:音頻放大器 100-watt mono BTL Class-D Audio Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel