ISD2590ER Nuvoton Technology Corporation of America, ISD2590ER Datasheet - Page 30

• Manufacturer Part Number: ISD2590ER
• Description: IC VOICE REC/PLAY 90-SEC 28-PDIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: ISD2500r

Specifications of ISD2590ER

• Interface: Button/MCU
• Filter Pass Band: 2.3kHz
• Duration: 90 Sec
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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
Ω
V
SS
FIGURE 5: DESIGN SCHEMATIC
23
24
27
25
22
26
10
8
1
2
4
5
6
7
9
3
A7
P/R
OEM
OVF
A1
A4
XCLK
A0
A2
A3
A5
A6
A8
A9
CE
PD
ISD2560/75/90/120
470 K
ANA OUT
- 30 -
R2
MIC REF
Ω
ANA IN
AUX IN
AGC
V
V
V
V
SP+
MIC
SP-
CCD
CCA
SSD
SSA
28
16
12
13
14
15
11
20
21
18
17
19
0.1
C2
4.7
μ
C6
μ
R6
(Note)
F
5.1 K
F
1 K
Ω
R1
Ω
V
CC
ISD2560/75/90/120
220
C7
C3
C4
0.1
0.1
V
CC
μ
μ
μ
10 K
R3
F
F
F
0.1
Ω
MICROPHONE
μ
C1
ELECTRET
F
SPEAKER
C8
22
16
μ
Ω
F
10 K
R5
C5
0.1
Ω
μ
F