ISD2575P Nuvoton Technology Corporation of America, ISD2575P Datasheet - Page 31

• Manufacturer Part Number: ISD2575P
• Description: IC MEM VOICE REC/PLAY 75S 28DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: ISD2500r

Specifications of ISD2575P

• Interface: Button/MCU
• Filter Pass Band: 2.7kHz
• Duration: 75 Sec
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

1
2
3A
3B
4A
4B
Control Step
R1
R2
R3, R5
R4
R6
C1, C5
C2
C3
C4
C6, C7, C8
Part
TABLE 14: APPLICATION EXAMPLE – PASSIVE COMPONENT FUNCTIONS
Power up chip and select Record/Playback Mode
Set message address for record/playback
Begin playback
Begin record
End playback
End record
Microphone power supply decoupling
Release time constant
Series limiting resistor
Series limiting resistor
Microphone DC-blocking capacitor Low-
frequency cutoff
Attack/Release time constant
Low-frequency cutoff capacitor
Microphone power supply decoupling
Power supply capacitors
Microphone biasing resistors
TABLE 13: APPLICATION EXAMPLE – BASIC DEVICE CONTROL
Function
Function
- 31 -
Reduces power supply noise
Sets release time for AGC
Provides biasing for microphone operation
Reduces level to prevent distortion at
Reduces level to high supply voltages
Sets attack/release time for AGC
Provides additional pole for low-frequency
cutoff
Reduces power supply noise
Filter and bypass of power supply
higher supply voltages
Decouples microphone bias from chip.
Provides single-pole low-frequency cutoff
and command mode noise rejection.
Publication Release Date: April 24, 2006
1. PD = LOW, 2. P/ R = As desired
Set addresses A0-A9
P/ R = HIGH, CE = Pulse LOW
P/ R = LOW, CE = LOW
Automatic
PD or CE = HIGH
ISD2560/75/90/120
Comments
Action
Revision 1.2