MSM6946

更新时间： 2024-02-28 20:15:46

品牌	Logo	应用领域
冲电气 - OKI		调制解调器
页数	文件大小	规格书
25页	183K
描述
300 bps Single Chip FSK MODEM

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

MSM6946 技术参数

生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	DIP,	针数：	28
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.82	Is Samacsys：	N
其他特性：	IT ALSO REQUIRES 12V SUPPLY	数据速率：	0.3 Mbps
JESD-30 代码：	R-PDIP-T28	长度：	36.7 mm
功能数量：	1	端子数量：	28
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装形状：	RECTANGULAR	封装形式：	IN-LINE
认证状态：	Not Qualified	座面最大高度：	5.08 mm
最大压摆率：	15 mA	标称供电电压：	5 V
表面贴装：	NO	技术：	CMOS
电信集成电路类型：	MODEM	温度等级：	COMMERCIAL
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	DUAL	宽度：	15.24 mm
Base Number Matches：	1

MSM6946 数据手册

¡ Semiconductor

MSM6926/6946

Input/Output

Pin No.

Name

I/O

Description

RS GS-K

Clear to send signal output. The digital "High" level indicates the "OFF" state and

digital "Low" indicates the "ON" state. This output goes "Low" at the end of a delay

(RSꢃCS delay) initiated when RS1 (Request to send) goes "Low".

Request to send signal input. The digital "High" level indicates the "OFF" state.

The digital "Low" level indicates the "ON" state and instructs the modem to enter

the transmit mode. This input must remain "Low" for the duration of data

transmission. "High" turns the transmitter off.

This is digital data to be modulated and transmitted via A_O. Digital "High" will be

transmitted as "Mark". Digital "Low" will be transmitted as "Space". No signal

appears at A_Ounless RS1 is "Low".

RS1

Digital data demodulated from A_INis serially available at this output. Digital

"High" indicates "Mark" and digital "Low" indicates "Space". For eꢂampleꢁ under

the following conditionꢁ this output is forced to be "Mark" state because the data

may be invalid.

• When CD2 (Carrier detect) is in the "OFF" state.

The SG1 and ST2 are built-in analog signal grounds. SG2 is used only for

Carrier detect function. The DC voltage of SG1 is approꢂimately 6 Vꢁ so the

analog line interface must be implemented by AC coupling. See Fig. 9. To make

impedance lower and ensure the device performanceꢁ it is necessary to put

bypass capacitors on SG1 and SG2 in close physical proꢂimity to the device.

SG2

SG1

This is the input for the analog signal from the phone line. The modem eꢂtracts

the information in this modulated carrier and converts it into a serial data stream

for presentation at RD output.

A_IN

A_O

This analog output is the modulated carrier to be conditioned and sent over the

phone line.

6/25

1...3 4 567 8 9...25

下载PDF

与MSM6946相关器件

型号	品牌	描述	获取价格	数据表
MSM6946GS2K	OKI	0.3kbps DATA, MODEM, PQFP44, 9 X 10 MM, PLASTIC, QFP-44	获取价格
MSM6946GS-2K	OKI	Modem, 0.3kbps Data, CMOS, PQFP44, 9 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44	获取价格
MSM6946GS-K	OKI	Modem, 0.3kbps Data, CMOS, PQFP44, 9 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44	获取价格
MSM6946RS	OKI	Modem, 0.3kbps Data, CMOS, PDIP28, 0.600 INCH, 2.54 MM PITCH, PLASTIC, DIP-28	获取价格
MSM6947	OKI	1200 bps Single Chip FSK MODEM	获取价格
MSM6947GS-K	OKI	1200 bps Single Chip FSK MODEM	获取价格

产品中心

服务支持

精选活动

关于我们

帮助中心

MSM6946

MSM6946 技术参数

MSM6946 数据手册

与MSM6946相关器件

与MSM6946相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MSM6946

MSM6946 技术参数

MSM6946 数据手册

与MSM6946相关器件

与MSM6946相关文章

您还可以找

您在本页遇到什么问题？