isd2548x Winbond Electronics Corp America, isd2548x Datasheet - Page 30

• Manufacturer Part Number: isd2548x
• Description: Single-chip, Multiple-messages, Voice Record/playback Device 32-, 40-, 48-, And 64-second Duration
• Manufacturer: Winbond Electronics Corp America

11. TYPICAL APPLICATION CIRCUIT
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.
V
CC
CHIP ENABLE
POWER DOWN
PLAYBACK/RECORD
100 K
R4
:
V
SS
FIGURE 5: DESIGN SCHEMATIC
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220
C7
0.1
C3
0.1
C4
V
CC
ISD2532/40/48/64
P
P
P
10 K
R3
F
F
F
0.1
:
MICROPHONE
P
C1
ELECTRET
F
SPEAKER
C8
22
16
P
:
F
R5
10 K
C5
0.1
:
P
F