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參數(shù)資料
型號： TPA3005D2EVM
廠商： Texas Instruments
文件頁數(shù)： 7/31頁
文件大?。?/td> 0K
描述： EVAL MODULE FOR TPA3005D2
標準包裝： 1
放大器類型： D 類
輸出類型： 2 通道（立體聲）
在某負載時最大輸出功率 x 通道數(shù)量： 6W x 2 @ 8 歐姆
電源電壓： 8.5 V ~ 18 V
工作溫度： -40°C ~ 85°C
板類型： 完全填充
已用 IC / 零件： TPA3005D2
已供物品： 板
產(chǎn)品目錄頁面： 877 (CN2011-ZH PDF)
相關(guān)產(chǎn)品： TPA3005D2PHPRG4-ND - IC AMP AUDIO PWR 6W STER 48TQFP
TPA3005D2PHPG4-ND - IC AMP AUDIO PWR 6W STER 48TQFP
TPA3005D2PHP-ND - IC AMP AUDIO PWR 6W STER 48TQFP
296-17058-6-ND - IC AMP AUDIO PWR 6W STER 48TQFP
296-17058-1-ND - IC AMP AUDIO PWR 6W STER 48TQFP
296-17058-2-ND - IC AMP AUDIO PWR 6W STER 48TQFP
其它名稱： 296-18924
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA3005D2PHP 功能描述:音頻放大器 Stereo 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA3005D2PHPG4 功能描述:音頻放大器 Stereo 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA3005D2PHPR 功能描述:音頻放大器 Stereo 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA3005D2PHPRG4 功能描述:音頻放大器 Stereo 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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
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