ISD2500 Datasheet, PDF (25/28 Pages) List of Unclassifed Manufacturers – Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations

Product Data Sheets
ISD2500 Series
ISD2500 APPLICATION EXAMPLE – PUSH-BUTTON
ISD2500 (PDIP/SOIC)
V_CC
V_CC
V_CC
V_SS
R6
100 KΩ
S1
R7
100 KΩ
V_CC
1 _A0
2 _A1
3 _A2
4 _A3
5 _A4
6 _A5
7 _A6
8 _{A7 (NC*)}
V_CCD ²⁸
V_CCA ¹⁶
V_SSD
V_SSA
12
13
C4
0.1 µF
SP+ ¹⁴
SP– ¹⁵
C1
0.1 µF
C5
22 µF
LS1
START/PAUSE
9 _{A8 (A7*)}
AUX IN ¹¹
16 Ω
S2
10 _{A9 (A8*)}
ANA IN ²⁰
SPEAKER
C3
STOP/RESET
23 _CE
24 _PD
27 _P/R
ANA OUT ²¹
0.1 µF
MIC REF ^{18 R4 5.1 KΩ}
25 _EOM
MIC ¹⁷
PLAYBACK/RECORD
22 _OVF
26 _XCLK
AGC ¹⁹
V_CC
C1
0.1 µF
C5
1
R3
0.1 µF
10 KΩ
R2
470 KΩ
C2
4.7 µF
ELECTRET
C4 _MICROPHONE
220 µF
R5
10 KΩ
NOTES: * Pin identifications for the ISD2532/40/48/64 devices which differ from those of the
ISD2560/75/90/120 devices are indicated.
** For more details, please refer to the ISD Application Notes and Design Manual.
APPLICATION EXAMPLE – PUSH-BUTTON CONTROL
Control Step
1
2A
2B
3
4A
4B
Function
Select Record/Playback mode
Begin Playback
Begin Record
Pause Record or Playback
End Payback
End Record
Action
P/R = As desired
P/R = HIGH
CE = Pulsed LOW
P/R = LOW
CE = Pulsed LOW
CE = Pulsed LOW
Automatic at EOM marker or
PD = Pulsed HIGH
PD = Pulsed HIGH
* ^{Advance information: ISD2532/40/48/64 devices.}
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