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M65845AFP Datasheet(PDF) 12 Page - Renesas Technology Corp

Part # M65845AFP
Description  Digital Echo with Microphone Mixing Circuit
PDF  14 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M65845AFP Datasheet(HTML) 12 Page - Renesas Technology Corp

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M65845AFP
REJ03F0170-0201 Rev.2.01 Jan 25, 2008
Page 12 of 13
Application Example
Microphone amplifier : GV = 47 dB, fcl = 50 Hz
ALC operating voltage –4 dBV
ECHO
: Delay time 197 ms (fs = 83.3 kHz)
Cut-off frequency 3.1 kHz
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36
19
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MIC1
MIC2
V
CC
V
CC
V
CC
MIC
SW
Feed Back
MICIN
ALC1
MIC1OUT
MIC1VOLIN
MIC1NFIN
MIC2IN
ALC2
MIC2NFIN
MIC2OUT
MIC2VOLIN
MICOUT
LPF1IN
LPF1OUT
ADINTIN
ADINTOUT
ADCONT
REF
GND
VCFIL
VCC
DACONT
DAINTIN
LPF2OUT
LPF2IN
ECHO
VOLIN
RLINEIN
LLINEIN
DAINTOUT
RLINEOUT
LLINEOUT
MICECHO
OUT
MICSW
CLOCK
CONT
AUDSW1
AUDSW2
VALC
5k
1
μ
4.7
μ
2.2
μ
1
μ
5k
1
μ
4.7
μ
2.2
μ
1
μ
0.047
μ
24k
24k
1000p
24k
0.068
μ
0.1
μ
47
μ
0.15
μ
0.01
μ
51k
24k
Lout
2.2
μ
Rout
2.2
μ
Lin
1
μ
Rin
1
μ
1
μ
24k
0.068
μ
0.047
μ
24k
24k
1000p
0.1
μ
0.1
μ
100
μ
D2
D1
51k
0.15
μ
50k
1
μ
30k
1
μ
30k
1
μ
30k
Units R:
Ω
C: F



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