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參數(shù)資料
| 型號(hào)： | TPA0252PWPR |
| 元件分類： | 音頻放大器 |
| 英文描述： | Toggle |
| 中文描述： | 放大器。其他 |
| 文件頁數(shù)： | 34/42頁 |
| 文件大?。?/td> | 806K |
| 代理商： | TPA0252PWPR |
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TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205B – FEBRUARY 1998 – REVISED DECEMBER 2000
34
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
output coupling capacitor, C
C
In the typical single-supply SE configuration, an output coupling capacitor (C
C
) is required to block the dc bias
at the output of the amplifier thus preventing dc currents in the load. As with the input coupling capacitor, the
output coupling capacitor and impedance of the load form a high-pass filter governed by equation 14.
(14)
f
c(high)
1
2 R
L
C
C
–3 dB
fc
The main disadvantage, from a performance standpoint, is the load impedances are typically small, which drives
the low-frequency corner higher degrading the bass response. Large values of C
C
are required to pass low
frequencies into the load. Consider the example where a C
C
of 330
μ
F is chosen and loads vary from 3
,
4
, 8
, 32
, 10 k
, to 47 k
. Table 2 summarizes the frequency response characteristics of each
configuration.
Table 2. Common Load Impedances Vs Low Frequency Output Characteristics in SE Mode
RL
CC
LOWEST FREQUENCY
3
4
8
32
330
μ
F
330
μ
F
330
μ
F
330
μ
F
330
μ
F
161 Hz
120 Hz
60 Hz
15 Hz
10,000
0.05 Hz
47,000
330
μ
F
0.01 Hz
As Table 2 indicates, most of the bass response is attenuated into a 4-
load, an 8-
load is adequate,
headphone response is good, and drive into line level inputs (a home stereo for example) is exceptional.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPA0253DGQR | AUDIO AMPLIFIER|SINGLE|CMOS|TSSOP|10PIN|PLASTIC |
| TPA2000D1PWR | Single Audio Amplifier |
| TPA2000D2PW | Amplifier. Other |
| TPA2000D2PWPR | AUDIO AMPLIFIER|DUAL|CMOS|TSSOP|24PIN|PLASTIC |
| TPA2000D2PWR | Switches, Microswitch; Circuitry:SPDT; Current Rating:1A; Features:Pin Plunger Actuator; Leaded Process Compatible:Yes; Mounting Type:Screw Terminal; Switch Function:SPDT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA0252PWPRG4 | 功能描述:音頻放大器 Stereo Class-AB w/Ster Hdphn Drive 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 |
| TPA0253 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE |
| TPA0253_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE |
| TPA0253DGQ | 功能描述:音頻放大器 Mono Lo-Pwr Class-AB 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 |
| TPA0253DGQ | 制造商:Texas Instruments 功能描述:IC SM POWER AMP CLASS-AB AUDIO |
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