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參數(shù)資料
| 型號： | TPA6203AIDRB |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.25 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, SON-8 |
| 文件頁數(shù)： | 2/22頁 |
| 文件大?。?/td> | 1054K |
| 代理商： | TPA6203AIDRB |
www.ti.com
_
+
VDD
VO+
VO-
GND
To Battery
Cs
Bias
Circuitry
IN-
IN+
+
-
IN
SHUTDOWN
RI
RF
CI
C(
)
BYPASS
(Optional)
_
+
VDD
VO+
VO-
GND
To Battery
Cs
Bias
Circuitry
IN-
IN+
IN
SHUTDOWN
RI
RF
CI
RI
RF
C(
)
BYPASS
(Optional)
Bypass Capacitor (CBYPASS) and Start-Up Time
Selecting Components
Resistors (RF and RI)
Gain = RF/RI
(1)
Input Capacitor (CI)
TPA6203A1
SLOS364D – MARCH 2002 – REVISED JULY 2005
Figure 29. Differential Input Application Schematic Optimized With Input Capacitors
Figure 30. Single-Ended Input Application Schematic
The internal voltage divider at the BYPASS pin of this
device sets a mid-supply voltage for internal refer-
ences and sets the output common mode voltage to
The input (RI) and feedback resistors (RF) set the
VDD/2. Adding a capacitor to this pin filters any noise
gain of the amplifier according to Equation 1.
into this pin and increases the kSVR. C(BYPASS)also
determines the rise time of VO+ and VO- when the
device is taken out of shutdown. The larger the
RF and RI should range from 1 k to 100 k. Most
capacitor, the slower the rise time. Although the
graphs were taken with RF = RI = 20 k.
output rise time depends on the bypass capacitor
Resistor matching is very important in fully differential
value, the device passes audio 4
s after taken out of
amplifiers. The balance of the output on the reference
shutdown and the gain is slowly ramped up based on
voltage depends on matched ratios of the resistors.
C(BYPASS).
CMRR, PSRR, and the cancellation of the second
harmonic distortion diminishes if resistor mismatch
occurs. Therefore, it is recommended to use 1%
The TPA6203A1 does not require input coupling
tolerance resistors or better to keep the performance
capacitors if using a differential input source that is
optimized.
biased from 0.5 V to VDD - 0.8 V. Use 1% tolerance
or better gain-setting resistors if not using input
coupling capacitors.
10
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相關(guān)代理商/技術(shù)參數(shù) |
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| TPA6204A1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.7W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER |
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| TPA6204A1DRB | 功能描述:音頻放大器 1.7-W Mono Full Diff Aud Power Amplifier 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA6204A1DRB | 制造商:Texas Instruments 功能描述:AUDIO POWER AMPLIFIER IC 制造商:Texas Instruments 功能描述:IC, AUDIO PWR AMP, CLASS AB, 1.7W, SON-8 |
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