參數(shù)資料
型號(hào)： TPA6043A4RHBRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 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)： 13/30頁(yè)
文件大小： 986K
代理商： TPA6043A4RHBRG4
www.ti.com
Bridge-Tied Load Versus Single-Ended Mode
V
(RMS) +
V
O(PP)
2 2
Power +
V
(RMS)
2
R
L
(3)
RL
2x VO(PP)
VO(PP)
VDD
R
L
C
V
O(PP)
V
O(PP)
V
DD
–3dB
f
c
SLOS543 – AUGUST 2007
Windows Vista Premium Mode Specifications
Windows Premium Mobile Vista
Device Type
Requirement
TPA6043A4 Typical Performance
Specifications
THD+N
≤ –65 dB FS [20 Hz, 20 kHz]
–74 dB FS[20 Hz, 20 kHz]
Analog Speaker Output Jack
Dynamic Range with Signal
≤ –80 dB FS A-Weight
–89 dB FS A-Weight
(RL = 8, FS = 0.707 Vrms)
Present
Line Output Crosstalk
≤ –60 dB [20 Hz, 20 kHz]
–100 dB [20 Hz, 20 kHz]
THD+N
≤ –45 dB FS [20 Hz, 20 kHz]
–81 dB FS [20 Hz, 20 kHz]
Analog Headphone Out Jack
Dynamic Range with Signal
(RL = 32, FS = 0.300
≤ –80 dB FS A-Weight
–100 dB FS A-Weight
Present
Vrms)
Headphone Output Crosstalk
≤ –60 dB [20 Hz, 20 kHz]
–82 dB [20 Hz, 20 kHz]
Figure 42 shows a Class-AB audio power amplifier (APA) in a bridge-tied-load (BTL) configuration. The
TPA6043A4 speaker amplifier consists of two Class-AB differential amplifiers per channel driving the positive and
negative terminals of the load. Specifically, differential drive means that as one side of the amplifier (the positive
terminal, for example) is slewing up, the other side is slewing down, and vice versa. This doubles the voltage
swing across the load as opposed to a ground-referenced load, or a single-ended load. Power is proportional to
the square of the voltage. Plugging 2x VO(PP) into the power equation yields 4X the output power from the same
supply rail and load impedance as would have been obtained with a ground-referenced load (see Equation 3).
Figure 42. Differential Output Configuration
Figure 43. Single-Ended Configuration and Frequency Response
20
Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s): TPA6043A4
相關(guān)PDF資料
PDF描述
TPA6043A4RHBR 2.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32
TPA6043A4RHB 2.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA6045A4C 制造商:TI 制造商全稱: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: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:Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH DirectPatTM STEREO HEADPHONE DRIVE AND REGULATOR
TPA6047A4RHBR 功能描述:音頻放大器 2W Stereo Audio Pwr 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
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