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Si2493/57/34/15/04
Global ISOmodem-EVB
Rev. 0.6 15
C1A
C2A
RING
TIP
R30, R31, R32, R33, C30 and C31
are an optional CID population
No Ground Plane In DAA Section
Bias
Ring Detect/CID
Hookswitch
DC Term
R4
Q2
Q3
R13
R16
R11
C9
C7
R5
R1
C10
R2
R10
Q4
R12
FB2
C5
R8
+
C4
RV1
Q5
C2
U2
Si3010/18
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
C6
-+
D1
Z1
C1
C8
Q1
R3 R15
C3
FB1
R6
R7
R9
Figure 12. Si3018/10 DAA Schematic