ISD1740PYI Nuvoton Technology Corporation of America, ISD1740PYI Datasheet - Page 18

• Manufacturer Part Number: ISD1740PYI
• Description: IC VOICE REC/PLAY 40-SEC 28-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: ISD1700, ChipCorder®r

Specifications of ISD1740PYI

• Interface: SPI
• Duration: 40 Sec
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ISD-COB1790 - BOARD DEMO FOR ISD1790ISD-COB1760 - BOARD DEMO FOR ISD1760ISD-COB1750 - BOARD DEMO FOR ISD1750ISD-COB1740 - BOARD DEMO FOR ISD1740ISD-COB1730 - BOARD DEMO FOR ISD1730ISD-COB17240 - BOARD DEMO FOR ISD17240ISD-COB17210 - BOARD DEMO FOR ISD17210ISD-COB17150 - BOARD DEMO FOR ISD17150ISD-ES17XX_USB_PB - BOARD DEMO FOR ISD1700 SERIES
• Filter Pass Band: -
• Lead Free Status / RoHS Status: Supplier Unconfirmed, Lead free / RoHS Compliant

10.1
To ensure the highest quality of voice reproduction, it is important to follow good audio design
practices in layout and power supply decoupling. See recommendations from below links or other
Application Notes in our websites.
Design Considerations for ISD1700 Family
Good Audio Design Practices
Single-Chip Board Layout Diagrams
*** At 8kHz sampling freq, Rosc = 80 K
Example #3: Connecting the SPI Interface to a microcontroller
http://www.winbond-usa.com/products/isd_products/chipcorder/applicationinfo/apin11.pdf
http://www.winbond-usa.com/products/isd_products/chipcorder/applicationinfo/apin12.pdf
AN-CC1002 Design Considerations for ISD1700 Family.pdf
G
OOD
A
UDIO
To uC
SPI
D
Rosc ***
ESIGN
0.1 F
μ
4.7 F
μ
P
22
24
23
25
26
19
10
11
7
6
5
4
20
18
RACTICES
9
REC
PLAY
ERASE
AnaIn
R
AGC
FWD
SS
SCLK
MOSI
MISO
MIC -
MIC+
VOL
FT
OSC
: Digital ground;
ISD1700
- 18 -
AUD/AUX
INT/RDY
RESET
: Analog ground;
V
V
SP-
V
V
SP+
V
V
LED
V
SSP1
SSP2
CCA
SSA
CCP
CCD
SSD
28
21
14
16
12
15
13
17
27
3
2
1
8
1 KΩ
0.1 F
V
0.1 F
CCD
Optional
μ
100 K
V
μ
CCP
: Ground for SP+;
or Buzzer
Speaker
D1
V
Ω
CCD
*
0.1 F
0.1 F
ISD1700 SERIES
μ
*
vAlert
μ
Optional: based upon the applications
AUD
AUX
V
CCA
*
V
V
*
: Ground for SP-
**
V
CCA
CCD
CCP
390 Ω
0.1 F
μ
Vcc
Reset
Speaker
0.1 F
V
**
μ
CC
8050C
Gnd