- 您现在的位置：买卖IC网 > PDF目录10904 > 73M2901CE-IMR/F (Maxim Integrated Products)IC MODEM 3.3V V.22BIS 32-QFN PDF资料下载
参数资料
| 型号： | 73M2901CE-IMR/F |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 23/27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： | 2,500 |
| 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： | 带卷 (TR) |
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页当前第23页第24页第25页第26页第27页
DS_2901CE_031
73M2901CE Data Sheet
Rev. 3.4
5
RING is used to inform the 73M2901CE that the external DAA circuitry or ring energy detector has
detected a ring signal. It will go active when each “RING” message is sent on RXD.
In addition, sending any character on the TXD line also generates an internal interrupt.
1.5
Crystal Oscillator
The Teridian 73M2901CE single chip modem can use an external 11.0592 MHz reference clock or can
generate a clock using only a crystal and two capacitors. If an external clock is used, it should be applied
to the OSCIN pin.
1.5.1
Specifying a Crystal
The manufacturer of a crystal resonator verifies its frequency of oscillation in a test set-up, but to ensure
that the same frequency is obtained in the application, the circuit conditions must be the same.
The Teridian 73M2901CE modem requires a parallel mode (anti-resonant) crystal, the important
specifications of which are as follows:
Mode:
Parallel (anti-resonant)
Frequency:
11.0592 MHz
Frequency tolerance:
±50 ppm at initial temperature
Temperature drift:
An additional ±50 ppm over full range
Load capacitance:
18 pF to 22 pF
ESR:
75
max
Drive level:
Less than 1 mW
The peak voltage level of the oscillator should be checked to assure it will not violate the maximum
voltage levels allowed on the oscillator pins. A resistor in series with the crystal can be used, if
necessary, to reduce the oscillator’s peak voltage levels.
Crystals with low ESRs may oscillate at higher than specified voltage levels.
1.6
Reset
A reset is accomplished by holding the RESET pin high. To ensure a proper power-on reset, the reset
pin must be held high for a minimum of 3
s. At power on, the voltage at VPD, VPA, and RESET must
come up at the same time for a proper reset.
The signals
DCD, CTS and DSR will be held inactive for 25 ms, acknowledging the reset operation, within
a 250 ms time window after the reset-triggering event. The 73M2901CE is ready for operation after the
250 ms window and/or after the signals
DCD, CTS and DSR become active.
1.7
Asynchronous and Synchronous Serial Data Interface
The serial data interface consists of the TXD and RXD data paths (LSB shifted in and out first) and the
TXCLK and RXCLK serial synchronous clock outputs associated with the data pins;
CTS/RTS flow
control;
DCD, DSR and DTR. In asynchronous mode, the data is passed at the bit rate (tolerance is +1%,
-2.5%).
相关PDF资料 |
PDF描述 |
|---|---|
| VI-2NW-IX-F1 | CONVERTER MOD DC/DC 5.5V 75W |
| VI-2NV-IX-F4 | CONVERTER MOD DC/DC 5.8V 75W |
| VI-2NV-IX-F3 | CONVERTER MOD DC/DC 5.8V 75W |
| VI-2NV-IX-F1 | CONVERTER MOD DC/DC 5.8V 75W |
| VI-2NT-IX-F3 | CONVERTER MOD DC/DC 6.5V 75W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| 73M2901CL-IGTR/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 |
| 73M2901CLIGV | 制造商:TDK 制造商全称:TDK Electronics 功能描述:V.22 BIS SINGLE CHIP MODEM |
发布紧急采购，3分钟左右您将得到回复。