ISD1700 SERIES
Example #2: Recording using AnaIn input via push-button controls
Reset
3
24
REC
RESET
23
PLAY
0.1 F
μ
vAlert
25
ERASE
D1
1 KΩ
2
26
LED
FWD
Vcc
Gnd
19
22
**
VCCD
**
VOL
FT
VCCA
1
VCCD
VSSD
VCCD
VCCP
0.1μF
*
28
VCCA
21
8
VCCA
VSSA
7
6
SS
*
μ
0.1
F
VCCP
SCLK
MOSI
MISO
14
VCCP
5
4
ISD1700
*
*
VSSP1 16
μ
0.1
F
μ
0.1
F
12
VSSP2
10
11
15
13
Speaker
or Buzzer
MIC+
MIC -
AnaIn
VCC
SP+
SP-
Speaker
0.1μF
9
AUD
AUX
17
27
AUD/AUX
INT/RDY
8050C
VCCD
100 KΩ
Optional
Rosc ***
20
18
390
Ω
ROSC
AGC
0.1μ F
μ
4.7
F
Optional: based upon the applications
*** At 8kHz sampling freq, Rosc = 80 K
: Digital ground;
: Analog ground;
: Ground for SP+; : Ground for SP-
Publication Release Date: January 23, 2007
Revision 1.3-S2
- 17 -
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