Silicon Laboratories SI2493/57/34/15/04 - Manual (Page 46)

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46 Rev. 1.3
EEC
L
K/D
5 /R
X
CL
K
DCD_/D
4
E
S
C/
D3
A
O
U
T /IN
T_
T
X
D
/WR_
R
ESET
_
R
X
D
/RD_
C
T S_
/C
S_
/A
L E
_
a lt _
R
I_
/D
6
/T
X
CL
K
IN
T
_
/D
0
RI
_/D
1
EESD
/D
2
C
L KO
U
T /A0
/EECS
R
T
S_
/D7
VDD
RING TIP
No Ground Plane In
D
A
A
S
e
ct
io
n
Exte
rnal crystal option
E m i
ssions option
E m
i ssions option
Bias
Ring
Detect/CID
H
o okswitch
D
C Term
B ypass
RV
1
R3
C4
1
FB1
C9
R7
C5
3
R8
C5
C3
C4
0
R6
R4
C2
U2
Si3018 QE
1
DCT
2
RX
3
IB
4
C1B
5
C2B
6
VREG
7
RNG1
8
DCT2
16
IGND 15
DCT3
14
QB
13
QE2
12
SC 11
VREG2
10
RNG2
9
-
+
D1
R1
2
Q2
R1
0
Y1 1 2
C1
0
Q5
Q1
R1
3
R11
Q4
C8
R15
Z1
C5
0
Q3
R2
C1
+
C4
C5
1
R5
U3
CLKIN/XTALI
1
XTALO
2
CLKOUT/A0/EECS
3
alt_RI/D6/TXCLK
4
VD3.3 5 GND 6
VDA 7
RTS/D7
8
VDB 19
GND 20 VD 3.3 21
C2A
13
C1A
14
ESC/D3
22
DCD/D4
23
EECLK/D5/RXCLK
24
CTS/CS/ALE
11
RXD/RD
9
TXD/WR
10
RESET
12
RI/D1
17
EESD/D2
18
AOUT/INT
15
INT/D0
16
C6
FB2
R16
C7
C5
2
R1
R9
Si2493/57/34/15/04
Hookswitch/DCT
EMI/EMC Ca
p
a
citors
ACT
ISOcap
Conducted Disturban
ce
Figu
re
18.
Si30
18/10 Com
ponent Fu
nctions