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參數資料
| 型號： | TPA112DR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.07 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件頁數： | 15/29頁 |
| 文件大小： | 707K |
| 代理商： | TPA112DR |
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www.ti.com
5-V VERSUS 3.3-V OPERATION
TPA112
SLOS212E – AUGUST 1998 – REVISED JUNE 2004
– Placing a 20-k
resistor, R
O, from the output of the IC to ground ensures that the coupling capacitor fully
discharges at power down. If the supply is rapidly cycled without this capacitor, a small pop may be audible
in 10-k
loads.
Using Low-ESR Capacitors
– Low-ESR capacitors are recommended throughout this application. A real capacitor can be modeled simply
as a resistor in series with an ideal capacitor. The voltage drop across this resistor minimizes the beneficial
effects of the capacitor in the circuit. The lower the equivalent value of this resistance, the more the real
capacitor behaves like an ideal capacitor.
The TPA112 is designed for operation over a supply range of 2.5 V to 5.5 V. This data sheet provides full
specifications for 5-V and 3.3-V operation because these are considered to be the two most common standard
voltages. There are no special considerations for 3.3-V versus 5-V operation as far as supply bypassing, gain
setting, or stability. The most important consideration is that of output power. Each amplifier in the TPA112 can
produce a maximum voltage swing of VDD – 1 V. This means, for 3.3-V operation, clipping starts to occur when
VO(PP) = 2.3 V, as opposed to VO(PP) = 4 V for 5-V operation. The reduced voltage swing subsequently reduces
maximum output power into the load before distortion begins to become significant.
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| TPA112D | 0.07 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA112DRG4 | 功能描述:音頻放大器 150mW Stereo 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 |
| TPA11CGPC0 | 功能描述:按鈕開關 SP MOM RND BLK ACT RoHS:否 制造商:C&K Components 觸點形式:2 NC - 2 NO 開關功能:ON ? OFF 電流額定值:4 A 電壓額定值 AC:12 V to 250 V 電壓額定值 DC:12 V to 50 V 功率額定值: 安裝風格:Through Hole 照明:Illuminated 照明顏色:None IP 等級:IP 40 端接類型:Solder 觸點電鍍:Silver 執行器:Square 蓋顏色: 封裝: 可燃性等級:UL 94 V-0 |
| TPA11CGPC004 | 功能描述:按鈕開關 SPST PUSHBUTTON SWITCH ROUND RoHS:否 制造商:C&K Components 觸點形式:2 NC - 2 NO 開關功能:ON ? OFF 電流額定值:4 A 電壓額定值 AC:12 V to 250 V 電壓額定值 DC:12 V to 50 V 功率額定值: 安裝風格:Through Hole 照明:Illuminated 照明顏色:None IP 等級:IP 40 端接類型:Solder 觸點電鍍:Silver 執行器:Square 蓋顏色: 封裝: 可燃性等級:UL 94 V-0 |
| TPA11CGPC004 | 制造商:TE Connectivity 功能描述:Pushbutton Switch |
| TPA11CGPC0FN | 制造商:TE Connectivity 功能描述:SWITCH SPST MOM |
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