si3225 Silicon Laboratories, si3225 Datasheet - Page 101
si3225
Manufacturer Part Number
si3225
Description
Dual Proslic Programmable Cmos Slic/codec
Manufacturer
Silicon Laboratories
Datasheet
1.SI3225.pdf
(112 pages)
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4. Pin Descriptions: Si3220/25
Pin Number(s)
Si3220
1, 16
2,15
3, 14
4, 13
5, 12
6, 11
7, 10
8
SVBATa
SVBATb
CAPMa
CAPMb
CAPPa
CAPPb
QGND
RNOa
RNOb
RPOa
RPOb
RPIa
RNIa
IREF
RNIb
RPIb
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Si3225
1, 16
2,15
3, 14
4, 13
5, 12
6, 11
7, 10
8
64
17
63
18
62
19
61
20
64-Lead TQFP
60
21
RNOa, RNOb
RPOa, RPOb
59
22
Si3220
58
(epad)
23
SVBATa,
SVBATb
CAPMa,
Symbol
CAPPa,
CAPMb
CAPPb
QGND
RPIa,
RNIa,
57
24
RPIb
RNIb
56
25
55
26
54
27
53
28
52
29
51
30
Output
Input/
50
31
49
32
O
O
I
I
I
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
GPOa
CS
SDITHRU
SDI
SDO
SCLK
VDD4
GND4
INT
PCLK
GND3
VDD3
DTX
DRX
FSYNC
RESET
Description
Battery Sensing Input.
Analog current input used to sense battery voltage.
Transconductance Amplifier External Resistor Connec-
tion.
Transconductance Amplifier External Resistor Connec-
tion.
Transconductance Amplifier Resistor Connection.
Transconductance Amplifier Resistor Connection.
Differential Capacitor.
Capacitor used in low-pass filter to stabilize SLIC feedback
loops.
Common Mode Capacitor.
Capacitor used in low-pass filter to stabilize SLIC feedback
loops.
Component Reference Ground.
Return path for differential and common-mode capacitors. Do
not connect to system ground.
Rev. 1.3
SVBATa
SVBATb
CAPMa
CAPMb
CAPPa
CAPPb
QGND
RPOa
RNOa
RNOb
RPOb
RPIa
RNIa
IREF
RNIb
RPIb
Si3220/25 Si3200/02
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
64
17
63
18
62
19
61
20
64-Lead TQFP
60
21
59
22
Si3225
58
23
(epad)
57
24
56
25
55
26
54
27
53
28
52
29
51
30
50
31
49
32
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
RRDa
CS
SDITHRU
SDI
SDO
SCLK
VDD4
GND4
INT
PCLK
GND3
VDD3
DTX
DRX
FSYNC
RESET
101