m65845 ETC-unknow, m65845 Datasheet - Page 15

• Manufacturer Part Number: m65845
• Description: Digital Echo With Microphone Mixing Circuit
• Manufacturer: ETC-unknow

APPLICATION EXAMPLE
Microphone amplifier : Gv=47dB,fcl=50Hz
ECHO
MIC1
MIC2
0.047µ
2.2µ
2.2µ
5k
5k
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
1µ
0.068µ
1µ
1µ
1µ
24k
24k
30k
0.1µ
47µ
30k
24k
1µ
4.7µ
1µ
4.7µ
1000p
: Delay time 197ms (fs=83.3kHz)
16
10
11
12
13
14
15
17
18
1
7
2
3
4
5
6
8
9
Cut-off frecuency 3.1kHz
ALC operating voltage -4dBV
MICIN
ALC1
MIC1NFIN
MIC1OUT
MIC1VOLIN
MIC2IN
ALC2
MIC2NFIN
MIC2OUT
MIC2VOLIN
MICOUT
LPF1IN
LPF1OUT
ADINTIN
ADINTOUT
ADCONT
REF
GND
0.15µ
MITSUBISHI
ELECTRIC
50k
DAINTOUT
RLINEOUT
MICECHO
LLINEOUT
MITSUBISHI SOUND PROCESSOR ICs
LPF2OUT
AUDSW2
AUDSW1
DAINTIN
DACONT
RLINEIN
LLINEIN
CLOCK
MICSW
LPF2IN
VOLIN
VCFIL
CONT
VALC
ECHO
Feed Back
OUT
VCC
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
19
20
0.1µ
1µ
0.1µ
0.15µ
0.068µ
1000p
MIC
SW
M65845AFP
D2
D1
24k
1µ
2.2µ
2.2µ
1µ
1µ
Units Resistance :
30k
24k
100µ
Lout
Rout
Lin
Rin
24k
0.047µ
0.01µ
24k
51k
VCC
Capacitance:F
51k
VCC
VCC
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