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ISD2540 Datasheet(PDF) 30 Page - Winbond

Part # ISD2540
Description  SINGLE-CHIP, MULTIPLE-MESSAGES, VOICE RECORD/PLAYBACK DEVICE 32-, 40-, 48-, AND 64-SECOND DURATION
PDF  42 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

ISD2540 Datasheet(HTML) 30 Page - Winbond

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ISD2532/40/48/64
11. TYPICAL APPLICATION CIRCUIT
V
CC
V
CCD
V
CCA
V
SSD
V
SSA
SP+
SP-
MIC REF
MIC
AGC
AUX IN
ANA IN
ANA OUT
A0
A1
A2
A3
A4
A5
A6
A7
A8
CE
PD
P/R
OEM
OVF
XCLK
100 K
Ω
R4
V
SS
CHIP ENABLE
POWER DOWN
PLAYBACK/RECORD
C3
0.1 F
µ
5.1 K
Ω
R6
C2
4.7 F
µ
470 K
Ω
R2
C5
0.1 F
µ
10 K
Ω
R5
ELECTRET
MICROPHONE
SPEAKER
16
Ω
V
CC
C6
0.1 F
µ
C7
0.1 F
µ
C8
22 F
µ
V
CC
C1
0.1 F
µ
C4
220 F
µ
1 K
Ω
R1
10 K
Ω
R3
ISD2532/40/48/64
1
2
3
4
5
6
7
9
10
23
24
27
25
22
26
19
17
18
21
20
11
15
14
13
12
16
28
(Note)
FIGURE 5: DESIGN SCHEMATIC
Note: If desired, pin 18 (PDIP package) may be left unconnected (microphone preamplifier noise will be higher). In
this case, pin 18 must not be tied to any other signal or voltage. Additional design example schematics are
provided below.
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