Datasheet

ISD5100 SERIES
Publication Release Date: Oct 31, 2008
- 75 - Revision 1.42
10. TYPICAL APPLICATION CIRCUIT
The following typical application example on ISD5100 series is for references only. They make no
representation or warranty that such applications shall be suitable for the use specified. It’s
customer’s obligation to verify the design in its own system for the functionalities, voice quality,
current consumption, and etc.
In addition, the below notes apply to the following application examples:
* The suggested values are for references only. Depending on system requirements, they can
be adjusted for functionalities and better performance.
It is important to have a separate path for each ground and power back to the related terminals to
minimize the noise. Besides, the power supplies should be decoupled as close to the device as
possible.
Also, it is crucial to follow good audio design practices in layout and power supply decoupling. See
recommendations in Application Notes from our websites.
Example #1: Recording via microphone
SCL
SDA
A1
A0
MIC+
MIC-
ACAP
SP+
SP-
5100
1
2
3
4
16
14
To C
I
2
C Interface &
Address Setting
µ
SOIC / PDIP
8
10
13
V
CC
220
F*
µ
Electret
microphone
C I/O
µ
XCLK
ANA IN
AUX IN
ANA OUT+
ANA OUT-
AUX OUT
26
18
19
11
12
20
V
CCD
V
CCD
V
SSD
V
SSD
27
28
5
6
V
CC
0.1 F
µ
RAC
INT
24
25
To C I/O for message
management (optional)
µ
V
SSA
V
SSA
V
SSA
9
15
23
V
CCA
17
0.1 F
µ
1.5k *

1.5k *

1.5k *

0.1 F*
µ
0.1 F*
µ
4.7 F*
µ