ISD2500 Datasheet, PDF (26/28 Pages) List of Unclassifed Manufacturers – Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations

ISD2500 Series
Product Data Sheets
APPLICATION EXAMPLE – PASSIVE COMPONENT FUNCTIONS
Part
R2
R4
R6, R7
C1, C4, C5
C2
C3
Function
Release time constant
Series limiting resistor
Pull-up and pull-down resistors
Power supply capacitors
Attack/Release time constant
Low-frequency cutoff capacitor
Comments
Sets release time for AGC
Reduces level to prevent distortion at
higher supply voltages
Defines static state of inputs
Filters and bypass of power supply
Sets attack/release time for AGC
Provides additional pole for low-
frequency cutoff
-1 ^{PUSH-BUTTON PARAMETERS}
Symbol
Characteristic
Min
T_CE
T_SET
CE Pulse Width [Start/Pause]
Control/Address Setup Time
T_PUD
Power-Up Delay
— ISD2532*
— ISD2540*
— ISD2548*
— ISD2564*
— ISD2560
— ISD2575
— ISD2590
— ISD25120
T_PD
PD Pulse Width [Stop/Reset]
T_RUN
CE to EOM HIGH
25
T_PAUSE
CE to EOM LOW
50
T_DB
CE HIGH
Debounce
— ISD2532*
70
— ISD2540*
85
— ISD2548*
105
— ISD2564*
135
— ISD2560
70
— ISD2575
85
— ISD2590
105
— ISD25120
135
Typ (1) Max Units
300
nsec
300
nsec
25
31.25
37.25
50.0
25
31.25
37.25
50.0
300
msec
msec
msec
msec
msec
msec
msec
msec
nsec
400
nsec
400
nsec
105 msec
135 msec
160 msec
215 msec
105 msec
135 msec
160 msec
215 msec
Conditions
1–104 _* Advance information: ISD2532/40/48/64 devices.