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参数资料
| 型号： | M65845AFP |
| 厂商： | Mitsubishi Electric Corporation |
| 英文描述： | DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT |
| 中文描述： | 数字回声混合电路和麦克风 |
| 文件页数： | 12/15页 |
| 文件大小： | 110K |
| 代理商： | M65845AFP |
ELECTRIC
MITSUBISHI
M65845AFP
PRELIMINARY
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
MITSUBISHI SOUND PROCESSOR ICs
( / 15 )
12
(6) Digital Echo
This IC incorporates a current control type clock oscillator circuit in it, thus providing circuit
configuration just by connecting an Rc for current control pin 32 (CLOCK CONT).
Fully internal clock supply prevents occurrence of undesired radiation without affecting
any external circuit.
The oscillator frequency fck is following.
fck = 2 MHz(Rc=51K
)
Rc
Clock
oscillator
circuit
Clock frequency:fck
32
DC Current
Note:
The delay time(Td) for echo is determined by the clock
frequency(fck).
Delay time=1/fckX24XN
(N=the number of memory bits = 16384
fck = 2 MHz(Rc=51K
) : Delay time=197msec
fck = 2.6MHz(Rc=39K
) : Delay time=150msec
fck = 3.9MHz(Rc=24K
) : Delay time=100msec
Reset Time
Mute time
(400msec)
The IC carries out auto mute function at the time of powering up and switching on
MIC SW in order to suppress shock noise that the digital delay may produce.
1 Clock oscillator circuit
2@Auto mute function
At power up
MIC SW OFF
Mute time
(400msec)
At switching on MIC SW
switching on MIC SW
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相关代理商/技术参数 |
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|---|---|
| M65845AFP(#TF0G) | 制造商:Renesas Electronics Corporation 功能描述: |
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| M65847SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:DIGITAL KEY CONTROLLER |
| M658489BFP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE CHIP SURROUND PROCESSOR |
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