DS96-L147-203 CONEXANT [Conexant Systems, Inc], DS96-L147-203 Datasheet - Page 55
DS96-L147-203
Manufacturer Part Number
DS96-L147-203
Description
SmartV.XX Modem
Manufacturer
CONEXANT [Conexant Systems, Inc]
Datasheet
1.DS96-L147-203.pdf
(94 pages)
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3.2.1.4
3.2.1.5
3.2.2
Figure 3-5. CX20493 LSD Hardware Interface Signals
102199B
DIB_DATAN
DIB_DATAP
PWRCLKN
PWRCLKP
NOTE:
Consult applicable reference design for exact
component placement and values, and for layout guidelines.
C950
R950
R952
C952
R924
R926
POWER AND
ISOLATION
CHANNEL
CHANNEL
BARRIER
DIGITAL
CLOCK
DATA
(DIB)
C922
C924
CX20493 LSD Pin Assignments and Signal Definitions
C962
R990
R922
General Purpose Input/Output
There is one unassigned general purpose input/output pin:
•
No Connects
Three pins are not used:
•
•
•
CX20493 LSD hardware interface signals are shown by major interface in Figure 3-5, are
shown by pin number in Figure 3-6, and are listed by pin number in Table 3-7.
CX20493 LSD hardware interface signals are defined in Table 3-8.
CX20493 LSD GPIO DC electrical characteristics are specified in Table 3-9.
CX20493 LSD AVdd DC electrical characteristics are listed in Table 3-10.
BR908 CC
BR908
General Purpose Input/Output 1 (GPIO1, pin 1); input/output
No Connect 1 (NC1, pin 8); no internal connection
No Connect 2 (NC2, pin 22); no internal connection
No Connect 3 (NC3, pin 25); no internal connection
CX81801-7x/8x SmartV.XX Modem Data Sheet
+
BR908 AC1
-
PCLK2
AGND_LSD
C970
R932
AGND_LSD DGND_LSD
Vdd
C930
CLK2
AGND_LSD
GND_TIE
C978
DGND_LSD
U908
Vdd
C926
FB906
C928
Conexant
24
26
27
28
29
15
23
7
2
6
DVdd
CLK
PWR+
AVdd
AGnd
DIB_P
DIB_N
PADDLE
DC_GND
DGND
SmartDAA 3
28-Pin QFN
Line Side
CX20493
Device
(LSD)
GPIO1
TRDC
RAC2
TAC2
RAC1
TAC1
RBias
VRef
TXO
NC1
NC2
NC3
TXF
EIC
EIO
EIF
RXI
VZ
Vc
C944
19
18
21
20
11
12
17
16
9
10
14
13
5
4
3
1
8
22
25
and TIP and
NC
NC
NC
NC
Impedance
Transmitter
Pulse Dial,
R954
(Optional)
Electronic
Off-Hook,
Inductor,
Coupling
Matching
On-hook
C974
Monitor
RING VI
Receive
Control
AGND_LSD
Filter
AGND_LSD
Ring
and
C940
C976
AGND_LSD
Protection
and EMI
Safety
Telephone
Connector
Line
101701_006
3-23
TIP
RING
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