參數(shù)資料
型號(hào)： TS488
廠商： 意法半導(dǎo)體
英文描述： Pop-free 120mW stereo headphone amplifier
中文描述： 流行無(wú)120mW立體聲耳機(jī)放大器
文件頁(yè)數(shù)： 24/32頁(yè)
文件大?。?/td> 465K
代理商： TS488
Application information
TS488-TS489
24/32
Note:
In case F
CL
is kept the same for calculation, It must be taken in account that the
1st order high-pass filter on the input and the 1st order high-pass filter on the
output create a 2nd order high-pass filter in the audio signal path with an
attenuation 6dB on F
CL
and a roll-off 40db
decade.
4.4
Higher cut-off frequency
In the high frequency region, you can limit the bandwidth by adding a capacitor C
feed
in
parallel with R
feed
. It forms a low-pass filter with a -3dB cut-off frequency F
CH
. Assuming
that F
CH
is highest frequency to be amplified (with a 3dB attenuation), the maximum value of
C
feed
is:
Figure 79.
Lower cut-off frequency vs.
input capacitor
Figure 80.
Lower cut-off frequency vs.
output capacitor
1
10
100
1000
10
100
1k
10k
Rin=50k
Ω
Rin=100k
Ω
Rin=20k
Ω
L
Cin (nF)
Rin=10k
Ω
0.1
1
10
100
1000
10
100
1k
10k
R
L
=32
Ω
R
L
=600
Ω
R
L
=16
Ω
L
Cout (
μ
F)
Figure 81.
Higher cut-off frequency vs. feedback capacitor
F
CH
2
π
R
feed
C
feed
--------------------------------------------------
=
0.01
0.1
1
10
100
100
1k
10k
100k
Rfeed=40k
Ω
Rfeed=80k
Ω
Rfeed=20k
Ω
H
Cfeed
(
μ
F
)
Rfeed=10k
Ω
相關(guān)PDF資料
PDF描述
TS488IQT Pop-free 120mW stereo headphone amplifier
TS488IST Pop-free 120mW stereo headphone amplifier
TS489 Pop-free 120mW stereo headphone amplifier
TS489IST Pop-free 120mW stereo headphone amplifier
TS4975 Stereo Headphone Drive Amplifier with Digital Volume Control via IC Bus
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS488IQT 功能描述:音頻放大器 Popfree 100mW stereo headphone amp 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
TS488IST 功能描述:音頻放大器 Popfree 100mW stereo headphone amp 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
TS489 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Pop-free 120mW stereo headphone amplifier
TS4890 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:RAIL TO RAIL OUTPUT 1W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW
TS4890ID 功能描述:音頻放大器 1W Audio Power Amp 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
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