参数资料
型号: SI2434-D-GT
厂商: Silicon Laboratories Inc
文件页数: 28/60页
文件大小: 0K
描述: IC ISOMODEM GLOBAL DAA 24TSSOP
标准包装: 62
系列: *
Si2457/34/15/04
34
Rev. 1.3
%V2
Automatic Line Status Detection—Adaptive Method.
Description: Before going off-hook with the ATD, ATO, or ATA commands, the Si2457/34/15/04 com-
pares the line voltage (via LVCS) to the NLIU (U85) register:
Loop Voltage
Action
0
LVCS (0.0625 x NLIU)
Report “NO LINE” and remain on-hook.
(0.0625 x NLIU) < LVCS
(0.85 x NLIU) Report “LINE IN USE” and remain on-hook.
(0.85 x NLIU) < LCVS
Go off-hook and establish a modem connection.
The NLIU register is updated every 1 ms with the minimum non-zero value of LVCS in the last
30 ms. This allows the Si2457/34/15/04 to eliminate errors due to 50/60 Hz interference and also
adapt to relatively slow change in the on-hook dc reference value on the telephone line. This algo-
rithm does not allow any non-zero values for NLIU below 0x0007. The host may also initialize NLIU
prior to issuing the %V2 command. Once the call has begun, the off-hook intrusion algorithm
(described in "4.12.2. Off-Hook Intrusion Detection" on page 19) operates normally. In addition, the
Si2457/34/15/04 will report “NO LINE” if the telephone line is completely disconnected. If the HOI
(U77, bit 11) bit is set, “LINE IN USE” is reported upon intrusion.
Table 10. Extended AT% Command Set (Command Defaults in Bold) (Continued)
Command
Action
相关PDF资料
PDF描述
VI-260-CV CONVERTER MOD DC/DC 5V 150W
VI-2N3-IX-F4 CONVERTER MOD DC/DC 24V 75W
VI-25H-CV CONVERTER MOD DC/DC 52V 150W
VI-25F-CV CONVERTER MOD DC/DC 72V 150W
VI-25D-CV CONVERTER MOD DC/DC 85V 150W
相关代理商/技术参数
参数描述
SI2434-D-GTR 制造商:Silicon Laboratories Inc 功能描述:Modem Chip Chipset 24-Pin TSSOP T/R 制造商:Silicon Laboratories Inc 功能描述:33.6 KBPS ISOMODEM SYSTEM-SIDE - LEAD-FREE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC ISOMODEM GLOBAL DAA 24TSSOP 制造商:Silicon Laboratories Inc 功能描述:33.6 kbps ISOmodem System-Side PBF
Si2434FS08-EVB 功能描述:网络开发工具 16-pin Si2434 + Si3008 ISOmodem Evaluation Board RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V
Si2434FS18-EVB 功能描述:网络开发工具 16-pin Si2434 + Si3018 ISOmodem Evaluation Board RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V
SI2434-FT 功能描述:电信线路管理 IC CONTACT SILICON LABS FOR AVAILABILITY RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray
SI2434-FT/REV B 制造商:Silicon Laboratories Inc 功能描述:LEAD FREE ISO MODEM - Rail/Tube