DSCX-V34LF-066 View Datasheet(PDF) - Conexant Systems
Part Name
Description
MFG CO.
DSCX-V34LF-066
Conexant Systems
'DSCX-V34LF-066' PDF : 82 Pages View PDF
CX86500 SCXV.xx Modem Data Sheet
3.5.1.4
3.5.1.5
General Purpose Input/Output
There is one unassigned general purpose input/output pin:
• General Purpose Input/Output 1 (GPIO1, pin 32); input/output
No Connects
There is one No Connect pin:
• No Connect (NC, pin 17); no internal connection
3.5.2
CX20493 LSD 32-Pin LQFP Pin Assignments and Signal Definitions
CX20493 LSD hardware interface signals are shown by major interface in Figure 3-7, are
shown by pin number in Figure 3-8, and are listed by pin number in Table 3-11.
CX20493 LSD hardware interface signals are defined in Table 3-12.
Figure 3-9. CX20493 LSD 32-Pin LQFP Hardware Interface Signals
RAC2 22
TAC2 21
On-hook
Monitor
(Optional)
Vdd
28 DVdd
RAC1
TAC1
24
23
Ring
Filter
C950
R950
PWRCLKN
R952
PWRCLKP
C952
DIB_DATAP
DIB_DATAN
R924
R926
DIGITAL
ISOLATION
BARRIER
(DIB)
POWER AND
CLOCK
CHANNEL
R990
BR908 CC
BR908 AC1
C962
R922
DATA
CHANNEL
+-
BR908
C922
C924
NOTE:
Consult applicable reference design for exact component
placement and values, and for layout guidelines.
C978
DGND_LSD
Electronic
EIC
TRDC
EIO
EIF
12
13
20
19
Inductor,
Off-Hook,
Pulse Dial,
and TIP and
RING VI
Control
PCLK2 R932 CLK2 C926
29 CLK
FB906
8
CX20493
PWR+ SmartDAA 3
RXI 10
C970
Vdd
2, 3 AVdd
C930 C928
Line Side
Device
(LSD)
VZ
TXO
TXF
11
15
14
7 AGnd 32-Pin LQFP
RBias 6
Receive
Coupling
Impedance
Matching
and
Transmitter
R954
AGND_LSD
30 DIB_P
31 DIB_N
1, 9, 16, 18, 25
26, 27
GND_TIE
U908
DC_GND
DGnd
AGND_LSD DGND_LSD
VRef 5
AGND_LSD
Vc 4
C944
C974
C940
GPIO1 32
NC 17
AGND_LSD
NC
NC
C976
Safety
and EMI
Protection
Telephone
Line
TIP
Connector RING
AGND_LSD
102247_007
102287F
Conexant
3-23
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