- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98277 > TPA711DRG4 (TEXAS INSTRUMENTS INC) 0.35 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 PDF資料下載
參數(shù)資料
| 型號(hào)： | TPA711DRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.35 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件頁數(shù)： | 19/38頁 |
| 文件大?。?/td> | 973K |
| 代理商： | TPA711DRG4 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當(dāng)前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁
TPA711
700mW MONO LOW VOLTAGE AUDIO POWER AMPLIFIER
SLOS230D NOVEMBER 1998 REVISED OCTOBER 2002
26
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
component selection (continued)
The output coupling capacitor required in single-supply SE mode also places additional constraints on the
selection of other components in the amplifier circuit. The rules described earlier still hold with the addition of
the following relationship:
(12)
10
C
B
250 k
v
1
R
F )
R
I
C
I
1
R
L
C
output coupling capacitor, CC
In the typical single-supply SE configuration, an output coupling capacitor (CC) 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 13.
(13)
f
c(high) +
1
2
pR
L
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 CC are required to pass low
frequencies into the load. Consider the example where a CC of 330 F is chosen and loads vary from 4 ,
8
, 32 , and 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
8
330
F
60 Hz
32
330
F
15 Hz
47,000
330
F
0.01 Hz
As Table 2 indicates, an 8-
load is adequate, earphone 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 |
|---|---|
| TPA721D | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA721DGN | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA721DGNR | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA721DR | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA721DG4 | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA711EVM | 制造商:TI 制造商全稱:Texas Instruments 功能描述:700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER |
| TPA711MSOPEVM | 功能描述:音頻 IC 開發(fā)工具 TPA711MSOP 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 |
| TPA71242 | 制造商:TE Connectivity 功能描述: |
| TPA721 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER |
| TPA721_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。