- 您现在的位置：买卖IC网 > PDF目录10994 > 73M1916-IMR/F (Maxim Integrated Products)MICRODAA SET FXO OF VOIP 32-QFN PDF资料下载
参数资料
| 型号： | 73M1916-IMR/F |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 57/88页 |
| 文件大小： | 0K |
| 描述： | MICRODAA SET FXO OF VOIP 32-QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | MicroDAA™ |
| 功能： | 数据存取装置（DAA） |
| 接口： | PCM，SPI |
| 电路数： | 1 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 带卷 (TR) |
| 包括： | * |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页当前第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页
73M1866B/73M1966B Data Sheet
DS_1x66B_001
60
Rev. 1.6
9
Barrier Information
9.1
Isolation Barrier
The 73M1x66B uses the Teridian MicroDAA proprietary isolation method based upon low-cost pulse
transformer coupling. This technique provides several advantages over other methods, including:
Lower BOM cost.
Reduced component count.
Lower radiated noise (EMI).
Improved operation in noisy environments.
The MicroDAA has additional and enhanced functionality such as the support of powering the Line-Side
DAA circuit from the Host-Side Device. This allows operation on leased lines circuits and on low current
conditions commonly encountered in long loops. The MicroDAA can also operate entirely from line power
when sufficient loop current is available.
Since the transformer is the only component crossing the isolation barrier, it solely determines the
isolation between the PSTN and the FXO’s digital interface. Several vendors can supply compatible
transformers with ratings up to 6000 V.
Communication of PCM data, control data and status data is performed in the digital domain and is
bidirectional at a rate of 1.536 Mbps.
9.2
Barrier Powered Options
The 73M1x66B has the ability to be used either in a Line Powered Mode or one where the Line-Side
Device can be powered across the barrier from the Host-Side Device. The power-on default for the
73M1x66B is Barrier Powered Mode.
9.2.1
Barrier Powered Operation
In this default mode of operation, the 73M1x66B Host-Side Device drives the pulse transformer in such a
way that power pulses are time division multiplexed into the transmit bit stream (half the time) that is
rectified by circuitry in the Line-Side Device and uses this energy to power itself.
9.2.2
Line Powered Operation
If there is sufficient current available from the PSTN line, the 73M1x66B can be programmed to use line
power instead of power from across the barrier.
9.3
Synchronization of the Barrier
Since the communication across the barrier is digital, synchronization of data across the barrier is of
absolute importance. To that end, the devices implement special procedures to ensure reliability across
the barrier.
When loss of synchronization is detected, the SLHS bit is set to 1 and likewise SYNL is also set to 1 and
initiates an interrupt to the host. Once the SYNL bit is asserted a new barrier synchronization sequence
will automatically begin.
Once read, the SLHS bit is reset, but will be set again if the synchronization loss continues.
相关PDF资料 |
PDF描述 |
|---|---|
| 73M1906B-IMR/F | MICRODAA SET FXO OF VOIP 32-QFN |
| VI-B0P-IY-F1 | CONVERTER MOD DC/DC 13.8V 50W |
| 73M1906B-IVTR/F | MICRODAA SET FXO OF VOIP 20TSSOP |
| VI-2VX-IY-F4 | CONVERTER MOD DC/DC 5.2V 50W |
| VI-2VX-IY-F2 | CONVERTER MOD DC/DC 5.2V 50W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 73M1916-IVT/F | 功能描述:电信线路管理 IC DAA-FXO VOLP System Line Side 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 |
| 73M1916-IVTR/F | 功能描述:电信线路管理 IC DAA-FXO VOLP System Line Side 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 |
| 73M1922-DB | 功能描述:网络开发工具 73M1922 Demo Brd 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 |
| 73M1966B-DB | 功能描述:网络开发工具 73M1966B Demo Brd 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 |
| 73M1966B-DB-C | 功能描述:网络开发工具 73M1966B Demo Brd w/GUI Cable 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 |
发布紧急采购，3分钟左右您将得到回复。