Rainbow Electronics ISD18B12 - Manual (Page 15)

ISD18B12
Publication Release Date: August 31, 2007
- 15 - Revision A1
Example #2: TryMe feature
Speaker
I18B12
V
CCD
V
CCA
V
SSD
V
SSA
SP-
MICOUT
MICIN
PLAYL
RECL
0.1 F µ
0.1 F µ
Ω∗
500k Ω∗
0.1 F*
µ
10 F*
µ
SP+
10k
LEDP
RECL
RECE
RECE
PLAYE
FT
1 K Ω
1 K Ω
SE
R
OSC
LEDR
Beeping
(Optional)
10 F* µ 10k Ω∗
ELECTRET
MICROPHONE
Vcc
LEDR
1k Ω∗
80 K Ω∗
TryMe
Vcc
Good Audio Design Practices
Winbond’s ChipCorder are very high-quality single-chip voice recording and playback devices.
To ensure the highest quality voice reproduction, it is important that good audio design
practices on layout and power supply decoupling are followed. See Application Information
links below for details.
Good Audio Design Practices
http://www.winbond-usa.com/products/isd_products/chipcorder/applicationinfo/apin11.pdf
Single-Chip Board Layout Diagrams
http://www.winbond-usa.com/products/isd_products/chipcorder/applicationinfo/apin12.pdf
It is strongly recommended that before any design or layout project starts, the designer should contact
Winbond Sales Rep for the most update technical information.