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ISD1000A View Datasheet(PDF) - Unspecified

Part NameDescriptionManufacturer
ISD1000A Single-Chip Voice Record/Playback Devices 16- and 20-Second Durations ETC
Unspecified 
ISD1000A Datasheet PDF : 20 Pages
First Prev 11 12 13 14 15 16 17 18 19 20
Product Data Sheets
ISD1000A Series
APPLICATION EXAMPLE – DESIGN SCHEMATIC
VCC
ISD1016A/1020A
VCC
CHIP ENABLE
POWER DOWN
PLAYBACK/RECORD
VSS 1 A0
2 A1
3 A2
4 A3
5 A4
6 A5
9 A6
10 A7
23 CE
24 PD
27 P/R
25 EOM
26 XCLK
VCCD
VCCA
VSSD
VSSA
28
16
C6
12 0.1 µF
13
SP+ 14
SP– 15
AUX IN 11
ANA IN 20
ANA OUT 21
R5
5.1 K
MIC REF 18 (Note)
MIC 17
AGC 19
VCC
R1
C7
0.1 µF
C8
22 µF
C3
0.1 µF
16
SPEAKER
C1
0.1 µF
C5
0.1 µF
Mic Ref
NOTE: If desired, pin 18 may be left unconnected
R2
1 K
R3
(microphone preamplifier noise will be higher). In this
470 K
10 K
R4
case, pin 18 must not be tied to any other signal or
voltage.
Additional design example schematics are provided in
C2
4.7 µF
C4
ELECTRET
MICROPHONE
10 K
1
220 µF
the Application Notes and Design Manual in this book.
APPLICATION EXAMPLE – BASIC DEVICE CONTROL
Control Step
1
2
3
4
Function
Power up chip and select record/playback mode
Set message address for record/playback
Begin playback/record
End cycle
Action
1. PD = LOW
2. P/R = As desired
Set addresses A0–A7
CE = Pulsed LOW (Playback)
CE = Held LOW (Record)
CE = HIGH and EOM reached
1–17
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