参数资料
型号: 73M1906B-IM/F
厂商: Maxim Integrated Products
文件页数: 26/88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: 490
系列: *
73M1866B/73M1966B Data Sheet
DS_1x66B_001
32
Rev. 1.6
4.4
Isolation Barrier Pulse Transformer
The isolation element used by the 73M1x66B is a standard digital pulse transformer. Several vendors
supply compatible transformers with up to 6000 V ratings. Since the transformer is the only component
crossing the isolation barrier other than EMI capacitors that may be required, it solely determines the
isolation between the PSTN and the FXO’s digital interface. This method of isolation is significantly
superior to other isolation techniques with major advantages in high common mode voltage operation,
lower radiated noise (EMI) and improved operation in noisy environments. Table 29 lists some pulse
transformers compatible with the 73M1x66B. The table also includes low-voltage transformers that offer
low-cost alternatives if such voltages are sufficient.
Table 29: Compatible Pulse Transformer Sources
Company
Number
Sumida
ESMIT 4180
ESMIT 4181
Wurth Electronics Midcom Inc.
750110001
UMEC
TG-UTB01543S
Datatronics
PT79280
AAsupreme
P950003
Table 30 lists some of the typical pulse transformer specifications used by the 73M1x66B. Contact the
manufacturer directly for product information.
Table 30: Pulse Transformer Electrical Characteristics
Parameter
Test Condition
Min
Nom
Max
Tolerance
Unit
Inductance
100 kHz, 10 mVAC, 1-2, Ls.
54
60
200
μH
Interwinding
Capacitance
6
pF
Turn Ratio
1:1
±2 %
N/A
DC Resistance
Primary
0.25
Ω
Secondary
0.25
Ω
Dielectric Breakdown
Voltage
1 sec
2000
3750
Vrms
ET Constant
1.2
V
μs
Surge Test
1.2 x 50
μs
2800
6000
V
Operating Temperature
-40
85
°C
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73M1906B-IMR/F 功能描述:电信线路管理 IC DAA-FXO VOLP System Host 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
73M1906B-IMR/F1 功能描述:电信线路管理 IC 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
73M1906B-IVT/F 功能描述:电信线路管理 IC DAA-FXO VOLP System Host 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
73M1906B-IVTR/F 功能描述:电信线路管理 IC DAA-FXO VOLP System Host 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
73M1906-IVT/F 制造商:TERIDIAN 功能描述: