參數(shù)資料
型號: TPA2000D1GQC
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA48
封裝: PLASTIC, BGA-48
文件頁數(shù): 13/14頁
文件大?。?/td> 205K
代理商: TPA2000D1GQC
TPA2000D1
2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
SLOS328B – JUNE 2000 – REVISED MAY 2001
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Table 1. Gain Settings
GAIN0
GAIN1
AMPLIFIER GAIN
(dB)
INPUT IMPEDANCE
(k
)
TYP
0
6
104
0
1
12
74
1
0
18
44
1
23.5
24
input resistance
Each gain setting is achieved by varying the input resistance of the amplifier, which can range from its smallest
value to over six times that value. As a result, if a single capacitor is used in the input high-pass filter, the –3dB
or cutoff frequency will also change by over six times.
Ci
IN
Zi
Zf
Input
Signal
The –3-dB frequency can be calculated using equation 4.
(4)
f
–3dB +
1
2
p C
i R
Z
i
input capacitor, Ci
In the typical application an input capacitor (Ci) is required to allow the amplifier to bias the input signal to the
proper dc level for optimum operation. In this case, Ci and the input impedance of the amplifier (Zi) form a
high-pass filter with the corner frequency determined in equation 5.
fc +
1
2
pZ
i
C
i
–3 dB
fc
(5)
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TPA2000D1PW 制造商:Texas Instruments 功能描述:POWER AMP CLASS-D AUDIO SMD 2000
TPA2000D1PWG4 功能描述:音頻放大器 Mono 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
TPA2000D1PWR 功能描述:音頻放大器 Mono 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