Electronic component search and free download site.
Transistors,MosFET ,Diode,Integrated circuits

ISD1700A View Datasheet(PDF) - Winbond

Part NameDescriptionManufacturer
ISD1700A Multi-Message Single-Chip Voice Record & Playback Devices Winbond
Winbond Winbond
ISD1700A Datasheet PDF : 31 Pages
First Prev 21 22 23 24 25 26 27 28 29 30
ISD1700A SERIES
11 TYPICAL APPLICATION CIRCUITS
Two example circuits illustrate recording via MIC and AnaIn inputs, respectively. These examples
show typical implementations of ISD1740A/50A/60A devices. .
Example #1:
VCC
4.7 K
4.7 K
Vcc
4.7µ F
0.1 µF
0.1 µF
4.7 K
24 REC
23 PLAY
25 ERASE
26 FWD
19 VOL
3
RESET
22 FT
7 TE3
6 TE2
5 TE1
4 NC
ISD1740A
ISD1750A
ISD1760A
10
MIC+
11
MIC -
9 ANA IN
**
Sample Freq [kHz]: 12 8 6.4 4
Rosc [K]
60 80 100 160
Rosc **
20 ROSC
18 AGC
4.7 µF
vAlert
LED 2 1 K
D1
VCC
VCCD
VCCD 1
VSSD 28
0.1 µF
*
***
VCCA
VCCD
VCCP
***
VCCA 21
VCCA
VSSA 8
0.1µ F
*
VCCP 14
VCCP
VSSP1 16 0.1µF
*
0.1
µ
F
*
VSSP2 12
SP+ 15
SP- 13
Speaker
or Buzzer
VCC
Speaker
AUD 17
RDY 27
R6
390
Q1
8050C
C5
0.1µ F
Optional: based upon the applications
Recording via MIC input
Notes:
* These capacitors may be needed in order to optimize for the best voice quality, which is also dependent
upon the layout of the PCB. Depending on system requirements, they can be 10 µF, 4.7 µF or other values.
Please refer to the ChipCorder Applications section or consult Winbond for layout advice.
** For Sampling Freq at 8 kHz, Rosc = 80 K
*** It is important to have a separate path for each ground and power back to each terminal to minimize the
noise. Also, the power supplies should be decoupled as close to the device as possible.
- 26 -
Direct download click here

 

Share Link : 
All Rights Reserved© datasheetq.com 2015 - 2020  ] [ Privacy Policy ] [ Request Datasheet  ] [ Contact Us ]