AccessRunner ADSL-USB Modem Device Set Data Sheet
3.3
CX20431 AFE Hardware Interface Signals
CX20431 AFE Hardware Signals, Pin Assignments, and Signal Definitions
3.3.1
CX20431 AFE hardware interface signals are shown in Figure 3-5.
CX20431 AFE pin assignments are shown in Figure 3-6.
CX20431 AFE hardware interface signals are defined in Table 3-13. DC characteristics are listed in Table 3-15.
11
15
16
17
18
13
1
2
AFE_SCLK
AFE_STB
AFE_CTRLIN
AFE_CTRLOUT
AFE_WAKEUP
AFE_RST#
CLKIN
INP_HYBR_RX
INM_HYBR_RX
HYBRID
CTRL_STRB
CTRL_IN
CTRL_OUT
WAKEUP
POR
7
8
P5200 UIC
OUTP_TX
OUTM_TX
INP_DRV
INM_DRV
CX20441 LD
24
23
22
19
29
30
31
RX00
RX08
TX00
RX0
RX1
TX0
STROBE
VREFP
CX11627 ADDP
0.1u
F
10
uF
AFE_STRB
VC
21
+3.3V
DVDD
AVDD
0.1u
F
10
uF
CX20431
ANALOG FRONT END
(AFE)
5
9
+3.3V through filter
AVDD
6
10
14
25
27
AVSS
AVSS
DVSS
DVSS
DVSS
VREFM
32-PIN TQFP
0.1u
F
10
uF
30K
32
RBIAS
3
4
12
20
26
28
INP_RX
INM_RX
NC
NC
NC
NC
NC
100427_F3-05_HIS 20431 32T
Figure 3-5. CX20431 AFE Hardware Interface Signals
24
23
22
21
20
19
18
17
INP_HYBR_RX
INM_HYBR_RX
INP_RX
1
2
3
4
5
6
7
8
RX0
RX1
TX0
INM_RX
DVDD
NC
AVDD
AVSS
STROBE
WAKEUP
CTRL_OUT
CX20431
OUTP_TX
OUTM_TX
100427_F3-06 PO_20431_32T
Figure 3-6. CX20431 AFE Pin Signals - 32-Pin TQFP
Conexant
100427B
3-19
CONEXANT [ CONEXANT SYSTEMS, INC ]
