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參數(shù)資料
| 型號(hào)： | M65845 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT |
| 中文描述： | 數(shù)字回聲混合電路和麥克風(fēng) |
| 文件頁(yè)數(shù)： | 7/15頁(yè) |
| 文件大?。?/td> | 110K |
| 代理商： | M65845 |
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ELECTRIC
MITSUBISHI
M65845AFP
PRELIMINARY
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
MITSUBISHI SOUND PROCESSOR ICs
( / 15 )
7
FUNCTION DESCRIPTION
The gain(Gv) and low cut-off frequency(fcl) of microphone amplifier are expressed
as follows.
3
4
334k
1.5k
2
10k
(typ)
5k
MIC
R1
C1
1μF
REF
Gv=20logR1+1.5K+334K
R1+1.5K
fcl=
1
2
π
(R1+1.5K)C1
Gv(max)=47dB,fcl=50Hz
R1=0
,C1=2.2μF
Assuming Gv=37dB, fcl=15Hz,for instance,
the constants take the following values.
R1=3.3K
,C1=2.2μF
(1) Microphone amplifier
3
4
R3
2
10k
(typ)
R2
MIC
R1
C1
1μF
REF
C4
<< Attention point when M65845FP is replaced with M65845AFP >>
R3 and C4 are required for the
M65845FP, not for the M65845AFP.
As mentioned above, the gain of
microphone amplifier can set it up
with R1.
Recommended circuit In use M65845FP
R1 for the gain of microphone
amplifier setting in use M65845AFP
R3 and C4 are not required for
the M65845AFP.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M65845AFP | DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT |
| M67713 | 220-225MHz,12.5V,7QW,FM PORTABLE RADIO |
| M67748UH | 220-225MHz, 12.5V, 7W, FM PORTABLE RADIO |
| M67748 | 150-175MHz, 12.5V, 7W, FM PORTABLE RADIO |
| M67748H | 150-175MHz, 12.5V, 7W, FM PORTABLE RADIO |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M65845AFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:Digital Echo with Microphone Mixing Circuit |
| M65845AFP(#TF0G) | 制造商:Renesas Electronics Corporation 功能描述: |
| M65847FP | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:DIGITAL KEY CONTROLLER |
| M65847SP | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:DIGITAL KEY CONTROLLER |
| M658489BFP | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE CHIP SURROUND PROCESSOR |
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