參數(shù)資料
型號(hào)： TPA0252PWPR
元件分類(lèi)： 音頻放大器
英文描述： Toggle
中文描述： 放大器。其他
文件頁(yè)數(shù)： 27/42頁(yè)
文件大?。?/td> 806K
代理商： TPA0252PWPR
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205B – FEBRUARY 1998 – REVISED DECEMBER 2000
27
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
For example, if the 5-V supply is replaced with a 3.3-V supply (TPA0202 has a maximum recommended V
DD
of 5.5 V) in the calculations of Table 1, then efficiency at 0.5 W would rise from 44% to 67% and internal power
dissipation would fall from 0.62 W to 0.25 W at 5 V. Then for a stereo 0.5-W system from a 3.3-V supply, the
maximum draw would only be 1.5 W as compared to 2.24 W from 5 V. In other words, use the efficiency analysis
to choose the correct supply voltage and speaker impedance for the application.
selection of components
Figure 62 and Figure 63 are a schematic diagrams of a typical notebook computer application circuits.
CB
1
μ
F
CS
0.1
μ
F
(see Note A)
Right
MUX
RLINEIN
RHPIN
Left
MUX
LHPIN
LLINEIN
Bias, Mute,
Shutdown,
and SE/BTL
MUX Control
+
–
+
–
RBYPASS
MUTE IN
MUTE OUT
SHUTDOWN
LBYPASS
ROUT+
ROUT–
RVDD
LVDD
LOUT+
LOUT–
SE/BTL
HP/LINE
CIR
1
μ
F
RIR
10 k
RFR
50 k
CFR
5 pF
System
Control
CIL
1
μ
F
RIL
10 k
NC
NC
4
5
6
8
9
11
19
20
21
RFL
50 k
CFL
5 pF
100 k
100 k
VDD
VDD
COUTR
330
μ
F
COUTL
330
μ
F
10
3
16
7
14
18
15
22
1 k
1 k
0.1
μ
F
NOTE A: A 0.1
μ
F ceramic capacitor should be placed as close as possible to the IC. For filtering lower-frequency noise signals, a larger aluminum
electrolytic capacitor of 10
μ
F or greater should be placed near the audio power amplifier.
Figure 62. TPA0202 Minimum Configuration Application Circuit
相關(guān)PDF資料
PDF描述
TPA0253DGQR AUDIO AMPLIFIER|SINGLE|CMOS|TSSOP|10PIN|PLASTIC
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TPA2000D2PWPR AUDIO AMPLIFIER|DUAL|CMOS|TSSOP|24PIN|PLASTIC
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA0252PWPRG4 功能描述:音頻放大器 Stereo Class-AB w/Ster Hdphn Drive RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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
TPA0253 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE
TPA0253_07 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE
TPA0253DGQ 功能描述:音頻放大器 Mono Lo-Pwr Class-AB RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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
TPA0253DGQ 制造商:Texas Instruments 功能描述:IC SM POWER AMP CLASS-AB AUDIO
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