參數(shù)資料
型號(hào)： TDA8933BTW/N2,512
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO32
封裝： 6.10 MM, 0.65 MM PITCH, PLASTIC, SOT-249-1, HTSSOP-32
文件頁數(shù)： 15/42頁
文件大?。?/td> 245K
代理商： TDA8933BTW/N2,512
TDA8933B_1
NXP B.V. 2008. All rights reserved.
Preliminary data sheet
Rev. 01 — 23 October 2008
22 of 42
NXP Semiconductors
TDA8933B
Class D audio amplier
SE conguration:
(2)
BTL conguration:
(3)
Where:
VP = supply voltage VDDP1 VSSP1 (V) or VDDP2 VSSP2 (V)
RL = load resistance ()
RDSon = drain-source on-state resistance ()
Rs = series resistance output inductor ()
RESR = Equivalent Series Resistance SE capacitance ()
tw(min) = minimum pulse width(s); 80 ns typical
fosc = oscillator frequency (Hz); 320 kHz typical with Rosc = 39 k
The output power Po at THD+N = 10 % can be estimated by:
(4)
Figure 7 and Figure 8 show the estimated output power at THD+N = 0.5 % and
THD+N = 10 % as a function of the supply voltage for SE and BTL congurations at
different load impedances. The output power is calculated with: RDSon = 0.38 (at
Tj =25 °C), Rs = 0.05 , RESR = 0.05 and IO(ocp) = 2 A (minimum).
P
o 0.5%
()
R
L
R
L
R
DSon
R
s
R
ESR
++
+
----------------------------------------------------------
1t
wmin
()
f
osc
×
–
() V
P
×
2
8R
L
×
-------------------------------------------------------------------------------------------------------------------------------------------
=
P
o 0.5%
()
R
L
R
L
2R
DSon
R
s )
+
(
×
+
-------------------------------------------------------
1t
wmin
()
f
osc
×
–
() V
P
×
2
2R
L
×
---------------------------------------------------------------------------------------------------------------------------------------
=
P
o10%
()
1.25
P
o 0.5%
()
×
=
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA8933T 功能描述:音頻放大器 2X10W BTL CLASS D AMP+VOLCTRL 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
TDA8933T/N1,112 功能描述:音頻放大器 2X10W BTL CLASS D 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
TDA8933T/N1,118 功能描述:音頻放大器 2X10W BTL CLASS D 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
TDA8933T-T 功能描述:音頻放大器 2X10W BTL CLASS D AMP+VOLCTRL 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
TDA8939 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Zero dead time Class-D 7.5 A power comparator
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