M65845FP データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M65845FP

DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

MITSUBISHI ELECTRIC  

M65845AFP PRELIMINARY Nsootmicee

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DIGITAL ECHO WITH

MITSUBISHI SOUND PROCESSOR

MICROPHONE MIXING CIRCUIT

ICs

APPLICATION EXAMPLE

Microphone amplifier : Gv=47dB,fcl=50Hz

ALC operating voltage -4dBV

ECHO

: Delay time 197ms (fs=83.3kHz)

Cut-off frecuency 3.1kHz

5k

1µ

MIC1

2.2µ

1 MICIN

4.7µ

2 ALC1

3 MIC1NFIN

1µ

5k

MIC2

1µ

2.2µ

1µ

30kΩ

4.7µ

4 MIC1OUT

5 MIC1VOLIN

6 MIC2IN

7 ALC2

8 MIC2NFIN

9 MIC2OUT

1µ

1µ

10 MIC2VOLIN

0.047µ

30kΩ

24k 24k

11 MICOUT

12 LPF1IN

24k

1000p

13 LPF1OUT

0.068µ

14 ADINTIN

15 ADINTOUT

16 ADCONT

0.1µ

17 REF

47µ

18 GND

0.15µ

VCFIL 36

VALC 35

AUDSW2 34

D2

0.01µ

51k

24k

VCC

AUDSW1 33

D1

CLOCK

CONT

32

51k

VCC

MICSW 31

MICECHO

OUT 30

LLINEOUT 29

RLINEOUT 28

LLINEIN 27

MIC

SW

2.2µ

Lout

2.2µ

Rout

1µ

Lin

RLINEIN 26

1µ

Rin

ECHO

VOLIN 25

1µ

30kΩ

1µ

LPF2OUT 24

1000p

24k

LPF2IN 23

24k

0.047µ

DAINTOUT 22

24k

DAINTIN 21 0.068µ

DACONT 20

0.1µ

VCC 19

0.1µ

100µ

VCC

0.15µ

Feed Back

50k

Units Resistance :Ω

Capacitance:F

MITSUBISHI

ELECTRIC

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