- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98290 > TS4990EIJT (STMICROELECTRONICS) 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 PDF資料下載
參數(shù)資料
| 型號(hào)： | TS4990EIJT |
| 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： | LEAD FREE, FCP-9 |
| 文件頁(yè)數(shù)： | 14/32頁(yè) |
| 文件大?。?/td> | 714K |
| 代理商： | TS4990EIJT |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)當(dāng)前第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)
TS4990
Application information
21/32
4.6
Wake-up time (tWU)
When the standby is released to put the device ON, the bypass capacitor Cb is not charged
immediately. Because Cb is directly linked to the bias of the amplifier, the bias will not work
properly until the Cb voltage is correct. The time to reach this voltage is called wake-up time
or tWU and specified in the electrical characteristics tables with Cb =1F.
time.
Figure 61.
Typical wake-up time vs. Cb
Due to process tolerances, the maximum value of wake-up time is shown 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=1 F in the
range of 0.8 F
≤Cb≤1.2 F).
4.7
Standby time
When the standby command is set, the time required to put the two output stages in high
impedance and the internal circuitry in standby mode is a few microseconds. In standby
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.
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
tup
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)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TS4990IST | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TS4990IQT | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO8 |
| TS4990IJT | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| TS4990ID | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TS4990IDT | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS4990EIKJT | 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 |
| 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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。