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| 型号： | 73M2901CE-IM/F |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/27页 |
| 文件大小： | 0K |
| 描述： | IC MODEM 3.3V V.22BIS 32-QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 490 |
| 数据格式： | V.21，V.22，V.23，Bell 103，Bell 212A |
| 波特率： | 300 ~ 9.6k |
| 电源电压： | 2.7 V ~ 3.6 V |
| 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（5x5） |
| 包装： | 管件 |
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DS_2901CE_031
73M2901CE Data Sheet
Rev. 3.4
23
8
Modem Performance Characteristics
The curves presented in this data sheet define modem IC performance under a variety of line conditions
typical of those encountered over the Public Switched Telephone Network.
8.1
BER versus SNR
This test represents the ability of the modem to operate over noisy lines with a minimum amount of data
transfer errors. Since some noise is generated in the best dial up lines, the modem must operate with the
lowest signal to noise ratio (SNR) possible.
Better modem performance is indicated by test curves that are closest to the BER axis. A narrow spread
between curves representing the four line parameters indicates minimal variation in performance while
operating over a range of typical operating conditions. A DPSK or QAM modem will exhibit better BER
performance test curves receiving in the low band (answer mode) than in the high band (originate mode).
8.2
BER versus Receive Level
This test measures the dynamic range of the modem. Because signal levels vary widely over dial up
lines, the widest possible dynamic range is desirable. The SNR is held constant at the indicated values
as the receive level is lowered from a very high to a very low signal level. The width of the bowl of these
curves, taken at the BER break points is the measure of the dynamic range.
Figure 5: BER versus SNR
Figure 6: BER versus Receive Level
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| 73M2901CE-IMR/F | 功能描述:电信线路管理 IC V.22bis Single-Chip Modem 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 |
| 73M2901CE-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 |
| 73M2901CL | 制造商:TDK 制造商全称:TDK Electronics 功能描述:V.22 BIS SINGLE CHIP MODEM |
| 73M2901CLIGT | 制造商:TDK 制造商全称:TDK Electronics 功能描述:V.22 BIS SINGLE CHIP MODEM |
| 73M2901CL-IGT/F | 功能描述:电信线路管理 IC V.22bis Single-Chip Modem w/Cid Ppu Liu 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 |
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