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參數(shù)資料
| 型號(hào)： | TS4990EIKJT |
| 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(yè)數(shù)： | 14/32頁(yè) |
| 文件大小： | 797K |
| 代理商： | TS4990EIKJT |
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TS4990
Application information
21/31
Figure 61.
Typical wake-up time vs. Cb
Due to process tolerances, the maximum value of wake-up time can be established by the
graph in Figure 62.
Figure 62.
Maximum wake-up time vs. Cb
Note:
The bypass capacitor Cb also has a typical tolerance of +/-20%. To calculate the wake-up
time with this tolerance, refer to the graph above (considering for example for Cb=1F in the
range of 0.8F≤1F≤1.2F).
4.7
Shutdown time
When the standby command is set, the time required to put the two output stages in high
impedance and the internal circuitry in shutdown mode is a few microseconds.
In shutdown mode, the bypass pin and Vin pin are short-circuited to ground by internal
switches. This allows a quick discharge of Cb and Cin capacitors.
4.8
Pop performance
Pop performance is intimately linked with the size of the input capacitor Cin and the bias
voltage bypass capacitor Cb.
12
34
0
100
200
300
400
500
600
4.7
0.1
Tamb=25
°C
Vcc=2.6V
Vcc=3.3V
Vcc=5V
St
ar
tu
p
Ti
me
(
m
s)
Bypass Capacitor Cb ( F)
12
34
0
100
200
300
400
500
600
Tamb=25
°C
4.7
0.1
Vcc=5V
Vcc=3.3V
Vcc=2.6V
Max.
St
ar
tup
Ti
me
(
m
s)
Bypass Capacitor Cb ( F)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS4990EKIJT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.2 W audio power amplifier with active low standby mode |
| TS4990ID | 功能描述:音頻放大器 1.2W audio Pwr 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 |
| TS4990IDT | 功能描述:音頻放大器 1.2W audio Pwr 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 |
| TS4990IJT | 制造商:ST 功能描述:1W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE |
| TS4990IQT | 功能描述:音頻放大器 1.2W audio pow. 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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