參數(shù)資料
型號： TS4975
廠商： 意法半導(dǎo)體
英文描述： Stereo Headphone Drive Amplifier with Digital Volume Control via IC Bus
中文描述： 立體聲耳機驅(qū)動集成電路放大器通過總線與數(shù)字音量控制
文件頁數(shù)： 23/33頁
文件大?。?/td> 747K
代理商： TS4975
TS4975
Application Information
23/33
and its value is:
Note:
This maximum value depends only on power supply voltage and load values.
The
efficiency
is the ratio between the output power and the power supply:
P
P
supply
The maximum theoretical value is reached when Vpeak = Vcc/2, so
Phantom ground configuration:
The average current delivered by the supply voltage is:
Figure 60. Current delivered by supply voltage in phantom ground mode
The power delivered by supply voltage is:
Then, the power dissipation by each amplifier is
and the maximum value is obtained when:
and its value is:
Note:
This maximum value depends only on power supply voltage and load values.
P
diss
MAX
V
π
2
R
L
2
------------- W
)
=
η
------------------
π
V
2V
CC
--------------------
=
=
η
π
4
78.5%
=
=
Icc
AVG
1
π
--
V
L
----R
t
( )
sin
t
0
π
∫
2V
L
---------R
( )
=
=
P
supply
V
CC
I
CC
AVG
W
(
)
=
P
diss
2 2V
π
R
L
---------------------- P
OUT
P
OUT
W
(
)
–
=
P
OUT
P
diss
0
=
P
diss
MAX
2V
π
2
R
L
2
-------------- W
)
=
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS4975_05 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Stereo Headphone Drive Amplifier with Digital Volume Control via I2C Bus
TS4975EIJT 功能描述:音頻放大器 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
TS4982IQT 功能描述:音頻放大器 2W Stereo Audio Amp 125 mW 16 ohm 3 lvl 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
TS4984 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2 x 1W Stereo audio power amplifier with active low standby mode
TS4984EIJT 功能描述:音頻放大器 2x1.2W stereo audio 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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