欢迎访问ic37.com |
会员登录 免费注册
发布采购

CX20431-21 参数 Datasheet PDF下载

CX20431-21图片预览
型号: CX20431-21
PDF下载: 下载PDF文件 查看货源
内容描述: AccessRunner ADSL -USB调制解调器设备设置 [AccessRunner ADSL-USB Modem Device Set]
分类和应用: 调制解调器
文件页数/大小: 56 页 / 363 K
品牌: CONEXANT [ CONEXANT SYSTEMS, INC ]
 浏览型号CX20431-21的Datasheet PDF文件第32页浏览型号CX20431-21的Datasheet PDF文件第33页浏览型号CX20431-21的Datasheet PDF文件第34页浏览型号CX20431-21的Datasheet PDF文件第35页浏览型号CX20431-21的Datasheet PDF文件第37页浏览型号CX20431-21的Datasheet PDF文件第38页浏览型号CX20431-21的Datasheet PDF文件第39页浏览型号CX20431-21的Datasheet PDF文件第40页  
AccessRunner ADSL-USB Modem Device Set Data Sheet  
Table 3-13. CX20431 AFE Hardware Signal Definitions  
Signal Name  
Pin  
I/O  
I/O Type  
Signal Name/Description  
CLOCK INTERFACE  
Clock In. Connect to 35.328 MHz voltage controlled crystal oscillator  
(VCXO) output through 51 .  
CLKIN  
11  
I
It  
P5200 UIC CONTROL AND CX11627 ADDP SERIAL INTERFACE  
Strobe In. Strobe input for the control interface. Connect to UIC  
AFE_STB.  
CTRL_STRB  
CTRL_IN  
CTRL_OUT  
WAKEUP  
POR#  
15  
16  
17  
18  
13  
I
It  
Control In. Serial digital data received from the UIC. Connect to UIC  
AFE_CTRLIN.  
I
It  
Control Out. Serial digital data sent to the UIC. Connect to UIC  
AFE_CTRLOUT.  
O
O
I
Ot  
Ot  
It  
Wakeup. Digital output for tone detection mode. Connect to UIC  
AFE_WAKEUP.  
Reset. Active low power-On reset. Connect to UIC AFE_RST#.  
P5200 UIC CONTROL AND CX11627 ADDP SERIAL INTERFACE  
Strobe. Strobe output for the data interface. The negative STROBE  
edge triggers the transfer of serial transmit data on TX0 from the  
ADDP to the AFE and triggers the transfer of serial receive data on  
RX0 and RX1 from the AFE to the ADDP. Connect to ADDP  
AFE_STRB and to UIC AFE_SCLK.  
STROBE  
19  
O
Ot  
CX11627 ADDP SERIAL INTERFACE  
Receive Data. Digital receive serial data output on RX0 is transferred  
to the ADDP. The negative edge of the STROBE signal from the AFE  
clocks the data into the ADDP. Connect to ADDP AFE_RX00.  
RX0  
RX1  
TX0  
24  
23  
22  
O
O
I
Ot  
Ot  
It  
Receive Data. Digital receive serial data output on RX1 is transferred  
data to the ADDP. The negative edge of the STROBE signal from the  
AFE clocks the data into the ADDP. Connect to ADDP AFE_RX08.  
Transmit Data. Digital transmit serial data input on TX0 is transferred  
from the ADDP. The negative edge of the STROBE signal clocks the  
data from the ADDP. Connect to ADDP AFE_TX00.  
HYBRID INTERFACE  
Receive Input Positive from Hybrid. Receive input positive from the  
hybrid circuit. AC couple through 1 µF.  
INP_HYBR_RX  
INM_HYBR_RX  
1
2
I
I
Ia  
Ia  
Receive Input Negative from Hybrid. Receive input negative from  
the hybrid circuit. AC couple through 1 µF.  
CX20441 LINE DRIVER INTERFACE  
Transmit Output Positive. Transmit output positive to the LD.  
Connect to LD INP_DRV.  
OUTP_TX  
OUTM_TX  
7
8
O
O
Oa  
Transmit Output Negative. Transmit output negative to the LD.  
Oa  
Connect to LD INM_DRV.  
POWER AND GROUND  
Analog Reference Voltage (+2.5V). Connect to GND through 10 µF  
and 0.1 µF in parallel.  
VREFP  
VC  
29  
30  
31  
32  
REF  
REF  
REF  
REF  
REF  
REF  
REF  
REF  
Analog Reference Voltage (+1.5V). Connect to GND through 10 µF  
and 0.1 µF in parallel.  
Analog Reference Voltage (+0.5V). Connect to GND through 10 µF  
and 0.1 µF in parallel.  
VREFM  
RBIAS  
Analog Current Reference. Current setting external resistor.  
Connect to GND through 30 kresistor (+1%).  
Digital Circuits Supply. Connect to +3.3V.  
DVDD  
AVDD  
DVSS  
AVSS  
21  
PWR  
PWR  
GND  
PWR  
PWR  
GND  
Analog Circuits Supply Voltage. Connect to +3.3V through filter.  
Digital Circuits Ground. Connect to GND.  
5, 9  
14, 25, 27  
6, 10  
Analog Circuit Ground. Connect to GND.  
AGND  
AGND  
3-20  
Conexant  
100427B  
 复制成功!