參數(shù)資料
型號(hào)： TPA3005D2PHPRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： 6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48
封裝： GREEN, PLASTIC, HTQFP-48
文件頁(yè)數(shù)： 7/30頁(yè)
文件大?。?/td> 643K
代理商： TPA3005D2PHPRG4
1 nF
Ferrite
Chip Bead
OUTP
OUTN
Ferrite
Chip Bead
1 nF
Ci
IN
Zi
Zf
Input
Signal
f +
1
2p Z
iCi
www.ti.com
SLOS427A – MAY 2004 – REVISED AUGUST 2010
Figure 19. Typical Ferrite Chip Bead Filter (Chip bead example: Fair-Rite 2512067007Y3)
Gain setting via GAIN0 and GAIN1 inputs
The gain of the TPA3005D2 is set by two input terminals, GAIN0 and GAIN1.
The gains listed in Table 2 are realized by changing the taps on the input resistors inside the amplifier. This
causes the input impedance (Zi) to be dependent on the gain setting. The actual gain settings are controlled by
ratios of resistors, so the gain variation from part-to-part is small. However, the input impedance may shift by
20% due to shifts in the actual resistance of the input resistors.
For design purposes, the input network (discussed in the next section) should be designed assuming an input
impedance of 26 k
, which is the absolute minimum input impedance of the TPA3005D2. At the lower gain
settings, the input impedance could increase as high as 165 k
Table 2. Gain Setting
INPUT IMPEDANCE
AMPLIFIER GAIN (dB)
(k
)
GAIN1
GAIN0
TYP
0
15.3
137
0
1
21.2
88
1
0
27.2
52
1
31.8
33
INPUT RESISTANCE
Each gain setting is achieved by varying the input resistance of the amplifier that can range from its smallest
value, 33 k
, to the largest value, 137 k. As a result, if a single capacitor is used in the input high-pass filter,
the -3 dB or cutoff frequency changes when changing gain steps.
The -3-dB frequency can be calculated using Equation 5. Use Table 2 for Zi values.
(5)
Copyright 2004–2010, Texas Instruments Incorporated
15
Product Folder Link(s): TPA3005D2
相關(guān)PDF資料
PDF描述
TPA3007D1PWR 6.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO24
TPA3007D1PW 6.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO24
TPA3007D1PWRG4 6.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO24
TPA3007D1PWG4 6.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO24
TPA3008D2PHPR 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA3007D1 制造商:TI 制造商全稱:Texas Instruments 功能描述:6.5-W MONO CLASS-D AUDIO POWER AMPLIFIER
TPA3007D1_06 制造商:TI 制造商全稱:Texas Instruments 功能描述:6.5-W MONO CLASS-D AUDIO POWER AMPLIFIER
TPA3007D1EVM 功能描述:音頻 IC 開(kāi)發(fā)工具 TPA3007D1 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
TPA3007D1PW 功能描述:音頻放大器 Mono Med Power Filter-Free 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
TPA3007D1PW 制造商:Texas Instruments 功能描述:IC AUDIO PWR AMP CLASS D 6.5
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*