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參數資料
| 型號： | FAN7033MP |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2W Stereo Power Amplifier with Fixed Gain |
| 中文描述： | 1.9 W, 2 CHANNEL, AUDIO AMPLIFIER, DSO14 |
| 封裝： | 4 X 4 MM, MLP-14 |
| 文件頁數： | 17/20頁 |
| 文件大小： | 418K |
| 代理商： | FAN7033MP |
FAN7033MP
17
Single-Ended Input
For the case, a source does not provide the fully differential signal, the residual input must be well treated.
Case(A) : For this case, input is left alone without any treatment, that is, input pin is floating. Even the pin is float-
ing, the BTL amplifier works and drives load. However, this configuration might cause unwanted noise at the output
signal. Furthemore, floated configuration decreases PSRR(Power Supply Rejection Ratio) and increase POP
noise.
Case(B) : Case(B) is strongly recommended. This configuration increases PSRR and decreases POP noise as
well. Of cource, to get the best performance, CINP must be the same value with CINN.
THD+N(Total Harmonic Distortion plus Noise)
THD+N stands for linearity and output noise of the amplifier as well. The FAN7033MP has the circuit for enhancing
THD. In spite of that, to get low THD+N, users should follow the recommendation:
(1) Use fully differential input configuration : A fully differential input makes low THD at output. Thus, for a single-
ended input case, THD+N slightly increaes.
(2) Do not miss C
BYP
. C
BYP
helps to increase PSRR. Thus, using this capacitor, it is possible to increase noise
immunity from the supply line.
(3) Do not miss C
SUP
. Voltage fluctuation in supply line increases THD. Thus, such voltage fluctuation must be
reduced to get low THD by connecting this capacitor between all VDD pins and the ground as closely as possible.
Case (A) : Residual Input Pin Floating
INPUT
90k
90k
90k
15k
15k
15k
15k
90k
FLOATING
C
INN
OUTP
OUTN
AMP1
AMP2
VDD/2
Case (B) : AC Coupling to Ground
INPUT
90k
90k
90k
15k
15k
15k
15k
90k
C
INN
C
INP
OUTP
OUTN
AMP1
AMP2
VDD/2
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN7033MPX | 功能描述:音頻放大器 2W CMOS Stereo Power Amplifier wtih Fixed 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 |
| FAN7040 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3W Mono BTL Amplifier with DC Volume Control |
| FAN7040M | 功能描述:音頻放大器 3W MONO 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 |
| FAN7040MX | 功能描述:音頻放大器 3W MONO 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 |
| FAN7071 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Landing Correction IC |
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