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參數資料
型號: TS4994EIJT
廠商: STMICROELECTRONICS
元件分類: 音頻/視頻放大
英文描述: 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9
封裝: ROHS COMPLIANT, FCP-9
文件頁數: 21/35頁
文件大小: 694K
代理商: TS4994EIJT
Application information
TS4994FC
28/35
Figure 96 and Figure 97 show CMRR versus frequency for a typical application with a
random selection of four
ΔR/R values with a 0.1% tolerance.
4.7
Power dissipation and efficiency
Assumptions:
Load voltage and current are sinusoidal (Vout and Iout)
Supply voltage is a pure DC source (VCC)
The output voltage is:
and
Figure 94.
CMRR vs. frequency (worst case
conditions)
Figure 95.
CMRR vs. frequency (worst case
conditions)
100
1000
10000
-60
-50
-40
-30
-20
-10
0
Cb=1
μF
Cb=0
20k
20
Vcc = 5V
Vic = 200mVpp
Av = 1, Cin = 470
μF
ΔR/R = 0.1%, RL ≥ 8Ω
Tamb = 25
°C
CMRR
(
d
B)
Frequency (Hz)
100
1000
10000
-60
-50
-40
-30
-20
-10
0
Cb=1
μF
Cb=0
20k
20
Vcc = 2.5V
Vic = 200mVpp
Av = 1, Cin = 470
μF
ΔR/R = 0.1%, RL ≥ 8Ω
Tamb = 25
°C
CMRR
(
d
B)
Frequency (Hz)
Figure 96.
CMRR vs. frequency with random
selection condition
Figure 97.
CMRR vs. frequency with random
selection condition
100
1000
10000
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=1
μF
Cb=0
20k
20
Vcc = 5V
Vic = 200mVpp
Av = 1, Cin = 470
μF
ΔR/R ≤ 0.1%, RL ≥ 8Ω
Tamb = 25
°C
CMRR
(
d
B)
Frequency (Hz)
100
1000
10000
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
Cb=1
μF
Cb=0
20k
20
Vcc = 2.5V
Vic = 200mVpp
Av = 1, Cin = 470
μF
ΔR/R ≤ 0.1%, RL ≥ 8Ω
Tamb = 25
°C
CMRR
(
d
B)
Frequency (Hz)
V
out = Vpeak sinωt (V)
I
out =
V
out
R
L
------------- (A)
相關PDF資料
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TS4994EIKJT 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9
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相關代理商/技術參數
參數描述
TS4994EIKJT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.2 W differential input/output audio power amplifier with selectable standby
TS4994FC 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.2 W differential input/output audio power amplifier with selectable standby
TS4994IJT 功能描述:音頻放大器 STANDARD LINEAR RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TS4994IQT 功能描述:音頻放大器 1W diff input/output audio Pwr amplifier RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TS4994IST 功能描述:音頻放大器 1W Audio Power Amp RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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