-OUTN Speaker Current OUTP OUTN OUTP -OUTN
參數(shù)資料
型號: TPA3130D2DAPR
廠商: Texas Instruments
文件頁數(shù): 14/35頁
文件大小: 0K
描述: IC AMP AUD PWR 15W STER 32HTSSOP
標(biāo)準(zhǔn)包裝: 2,000
系列: SpeakerGuard™
類型: D 類
輸出類型: 2 通道(立體聲)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量: 15W x 2 @ 8 歐姆
電源電壓: 4.5 V ~ 26 V
特點(diǎn): 差分輸入,靜音,短路和熱保護(hù),關(guān)機(jī)
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 32-HTSSOP
封裝/外殼: 32-TSSOP(0.240",6.10mm 寬)裸露焊盤
包裝: 帶卷 (TR)
OUTP
OUTN
OUTP
-OUTN
Speaker
Current
OUTP
OUTN
OUTP
-OUTN
Speaker
Current
OUTP
OUTN
OUTP
-OUTN
Speaker
Current
0 V
PVCC
No Output
Positive Output
Negative Output
0 A
0 V
-PVCC
SLOS708C – APRIL 2012 – REVISED NOVEMBER 2013
MODSEL = HIGH: 1SPW-modulation
The 1SPW mode alters the normal modulation scheme in order to achieve higher efficiency with a slight penalty
in THD degradation and more attention required in the output filter selection. In 1SPW mode the outputs operate
at ~15% modulation during idle conditions. When an audio signal is applied one output will decrease and one will
increase. The decreasing output signal will quickly rail to GND at which point all the audio modulation takes place
through the rising output. The result is that only one output is switching during a majority of the audio cycle.
Efficiency is improved in this mode due to the reduction of switching losses. The THD penalty in 1SPW mode is
minimized by the high performance feedback loop. The resulting audio signal at each half output has a
discontinuity each time the output rails to GND. This can cause ringing in the audio reconstruction filter unless
care is taken in the selection of the filter components and type of filter used.
Figure 32. 1SPW Mode Modulation
Copyright 2012–2013, Texas Instruments Incorporated
21
Product Folder Links: TPA3116D2 TPA3118D2 TPA3130D2
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