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參數(shù)資料
| 型號(hào)： | TPA6043A4RHBR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 音頻／視頻放大 |
| 英文描述： | 2.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
| 封裝： | GREEN, PLASTIC, QFN-32 |
| 文件頁(yè)數(shù)： | 10/30頁(yè) |
| 文件大小： | 986K |
| 代理商： | TPA6043A4RHBR |
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TPA6043A4
LOUT+
SPKR_RIN–
SPKR_RIN+
SPGND
SPVDD
CPVDD
CPVSS
HPVSS
HP_OUTR
HP_OUTL
CPGND
C1P
C1N
LOUT-
BYPASS
GAIN1
GAIN0
VDD
SGND
HP_INL
HP_INR
REG_OUT
REG_EN
SPKRRight(+)Input
SPKRRight(–)Input
SPKR_LIN+
SPKRLeft(+)Input
SPKRLeft(–)Input
SPKR_LIN–
4.5V-5.5V
10 F
m
Left
Speaker
Headphone
Output
HPVDD
SPVDD
ROUT+
ROUT-
Right
Speaker
3V-5.5V
1 F
m
SPGND
SPKR_EN
HP_EN
HeadphoneEnable
SpeakerEnable
0.47 mF
RegulatorEnable
{
4-Step
GainControl
2.2 mF
0.1mF
1 mF
4.5 V - 5.5 V
3.3V
(Output)
1 F
m
HP RightInput
HP LeftInput
0.47 F
m
0.47 F
m
0.47 F
m
0.47 F
m
1 F
m
1 F
m
1 F
m
1 F
m
Power Enable Modes
Speaker Amplifier Description
Fully Differential Amplifier
SLOS543 – AUGUST 2007
Figure 40. Differential Input Application Circuit
The TPA6043A4 allows disable of any or all of the main circuit blocks when not in use in order to reduce
operating power to an absolute minimum. The SPKR_EN control can be used to disable the speaker amplifier
while the HP_EN can be used separately to turn off the headphone amplifier. The LDO also has an independent
power control, REG_EN. With all circuit blocks disabled, the supply current in shutdown mode is only 5
μA. See
the General DC Electrical Characteristics for operating currents with each circuit block operating independently.
The speaker amplifier is capable of driving 2 W/ch of continuous RMS power into a 4-
load at 5 V. An internal
4-step control allows variation of the gain from 6 dB to 21.6 dB.
The TPA6043A4 speaker amplifier is a fully differential amplifier with differential inputs and outputs. The fully
differential architecture consist of a differential amplifier and a common mode amplifier. The differential amplifier
ensures that the amplifier outputs a differential voltage that is equal to the differential input times the gain. The
common-mode voltage at the output is biased around VDD/2 regardless of the common-mode voltage at the
input.
18
Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s): TPA6043A4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| TPA6043A4RHBRG4 | 功能描述:音頻放大器 2W St Aud Pwr Amp 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 |
| TPA6045A4C | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH DirectPath? STEREO HEADPHONE DRIVE AND REGULATOR |
| TPA6045A4CRHB | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH DirectPath? STEREO HEADPHONE DRIVE AND REGULATOR |
| TPA6045A4CRHBR | 功能描述:音頻放大器 2W Spkr Amp,Head phone Amp & LDO 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 |
| TPA6047A4 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH DirectPatTM STEREO HEADPHONE DRIVE AND REGULATOR |
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