Rainbow Electronics ISD1800 - Manual (Page 19)

ISD1800 SERIES
Publication Release Date: June 7, 2005
- 19 - Revision 0.3
11. TYPICAL APPLICATION CIRCUIT
ISD1800
ROSC V
CCD
V
CCA
V
SSD
V
SSA
SP +
SP -
MIC
MIC REF
AGC
FT
PLAYL
PLAYE
REC
XCLK
RECLED
V
CC
C2
0.1 F
R1
1 K (REXT)
8 '
SPEAKER
Ω
Ω μ
C1
220 F μ
R3
R4
C4
C6
C5
0.1 F μ
4.7 F μ
0.1 F μ
4.7 K Ω
4.7 K Ω
ELECTRET
MICROPHONE
R2
R6
1 K Ω
C3
0.001 F μ
RECORD
PLAYE
PLAYL
DI
REC
LED