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(jī)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)： 22/33頁
文件大?。?/td> 747K
代理商： TS4975
Application Information
TS4975
22/33
4.2
Power dissipation and efficiency
Hypotheses:
●
Voltage and current in the load are sinusoidal (Vout and Iout).
Supply voltage is a pure DC source (Vcc).
●
Regarding the load we have:
and
and
Single-ended configuration:
The average current delivered by the supply voltage is:
Figure 59. Current delivered by supply voltage in single-ended model
The power delivered by supply voltage is:
So, the
power dissipation by each amplifier
is
and the maximum value is obtained when:
V
OUT
V
PEAK
ω
t V
sin
=
I
OUT
V
L
----R
( )
=
P
OUT
V
L
2
--2R
( )
=
Icc
AVG
π
2
V
L
----R
t
( )
sin
t
0
π
∫
V
L
------R
( )
=
=
P
supply
V
CC
I
CC
AVG
W
(
)
=
P
diss
P
supply
P
OUT
W
–
(
)
=
P
diss
2V
π
R
L
------------------ P
OUT
P
OUT
W
(
)
–
=
P
OUT
P
diss
0
=
相關(guān)PDF資料
PDF描述
TS4975EIJT Stereo Headphone Drive Amplifier with Digital Volume Control via IC Bus
TS4B01G Single Phase 4.0 AMPS. Glass Passivated Bridge Rectifiers
TS4B02G Single Phase 4.0 AMPS. Glass Passivated Bridge Rectifiers
TS4B03G Single Phase 4.0 AMPS. Glass Passivated Bridge Rectifiers
TS4B04G Single Phase 4.0 AMPS. Glass Passivated Bridge Rectifiers
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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*