Si3230
VCC
32
GNDD
31
23
10
27
TEST2
4
GNDA
VDDA1
R1
200k
15
C24
0.1uF
20
C3
220nF
R8
470
VDDA2
VDDD
30
TEST
STIPDC
STIPAC
SCLK
SDI
SDO
CS
38
37
36
1
6
3
VCC
SPI Bus
8
GND
7
C18
4.7µF
C19
4.7µF
FSYNC
PCLK
ITIPN
IRINGN
ITIPP
IRINGP
STIPE
SRINGE
Clock
Inputs
VCC
2
R32
10k
VDD
To codec
ITIPN
IRINGN
4.7µF
C5
22nF
C6
22nF
3
1
13
16
14
11
10
R7
4.02k
R2
196k
25
28
26
17
Protection Circuit
Si3201
TIP
TIP
ITIPP
IRINGP
STIPE
SRINGE
Si3230/Si3230M
15
29
INT
RESET
2
7
Note 2
R26
2
40.2k
To codec
RING
RING
R4
196k 19
R6
4.02k
18
R5
200k
C4
220nF
R9
470
VBATH
VBAT
SVBAT
IGMP
IGMN
IREF
24
22
11
12
14
C2
10uF
C1
10uF
R14
40.2k
To codec
5
4
21
16
SRINGAC
DCDRV
SRINGDC
SDCH
SDCL
CAPP
CAPM
DCFF
QGND
Notes:
1. Values and configurations for these
components can be derived from Table
16 or from App Note 45.
2. Only one component per system
needed.
3. All circuit ground should have a single-
point connection to the ground plane .
R3
200k
C26
0.1uF
R21
15
1
R29
13
34
SDCH
1
R28
DCFF
SDCL
VCC
DCDRV
Q9
2N2222
33
9
8
GND
VDDA1
C15
0.1uF
VDDA2
C16
C17
0.1uF 0.1uF
VDDD
C30
10uF
VDC
Note 1
VBAT
DC-DC Converter
VDC
Circuit
Figure 3. Si3230/Si3230M Application Circuit Using Si3201
Table 11. Si3230/Si3230M + Si3201 External Component Values
Component (s)
C1,C2
C3,C4
C5,C6
C15,C16,C17,C24
C18,C19
C26
C30
R1,R3,R5
R2,R4
R6,R7
R8,R9
R14,R26*
R15
R21
R28,R29
R32*
Q9
Value
10 µF, 6 V Ceramic or 16 V Low Leakage Electrolytic, ±20%
220 nF, 100 V, X7R, ±20%
22 nF, 100 V, X7R, ±20%
0.1 µF, 6 V, Y5V, ±20%
4.7 µF, Cer. 6 V, X7R, ±20%
0.1 µF, 100 V, X7R, ±20%
10 µF, 6 V, Electrolytic, ±20%
200 kΩ, 1/10 W, ±1%
196 kΩ, 1/10 W, ±1%
4.02 kΩ, 1/10 W, ±1%
470
Ω,
1/10 W, ±1%
40.2 kΩ, 1/10 W, ±1%
243
Ω,
1/10 W, ±1%
15
Ω,
1/4 W, ±5%
1/10 W, 1% (See AN45 or Table 16 for value selection)
10 kΩ, 1/10 W, ±5%
60 V, General Purpose Switching NPN
Supplier
Murata, Nichicon URL1C100MD
Murata, Johanson, Novacap, Venkel
Murata, Johanson, Novacap, Venkel
Murata, Johanson, Novacap, Venkel
Murata, Johanson, Novacap, Venkel
Murata, Johanson, Novacap, Venkel
Panasonic
ON Semi MMBT2222ALT1; Central
Semi CMPT2222A; Zetex FMMT2222
*Note:
Only one component per system needed.
12
Preliminary Rev. 0.96
SILABS [ SILICON LABORATORIES ]
