FX949L4

更新时间： 2024-09-15 10:27:35

品牌	Logo	应用领域
CMLMICRO		调制解调器电信集成电路电信电路光电二极管泵无线
页数	文件大小	规格书
25页	624K
描述
CDPD Wireless Modem Data Pump

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FX949L4 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	LFQFP,	针数：	48
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.84	Is Samacsys：	N
JESD-30 代码：	S-PQFP-G48	长度：	7 mm
功能数量：	1	端子数量：	48
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	LFQFP
封装形状：	SQUARE	封装形式：	FLATPACK, LOW PROFILE, FINE PITCH
认证状态：	Not Qualified	座面最大高度：	1.6 mm
最大压摆率：	3 mA	表面贴装：	YES
技术：	CMOS	电信集成电路类型：	MODEM-SUPPORT CIRCUIT
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	0.5 mm	端子位置：	QUAD
宽度：	7 mm	Base Number Matches：	1

CML Semiconductor Products

CDPD Wireless Modem Data Pump FX949

Obsolete Product

1.0

Features

'For Information Only'

MES Full Duplex Operation

19.2kb/s GMSK Modulation

Sleep Timer Included

Forward Channel Decoding

Reverse Channel Encoding

Error Detection and Syndrome Output

3.3V and 5V Applications

PCMCIA Package Option

1.1

Brief Description

The FX949 is a low power CMOS integrated circuit which performs all of the real-time signal and data

format-management functions required for full-duplex operation of a CDPD Mobile End Station.

The FX949 interfaces directly with the analogue modulation and demodulation circuits of the radio and

the host radio/application processor bus.

It accepts application data from the processor, constructs a correct Reverse Channel packet containing

this data and converts the packet to GMSK analogue signals for transmission. In receive, Forward

Channel GMSK signals from the discriminator are demodulated, the packet disassembled, error

checked, and the recovered application data passed to the processor.

The FX949 is the cost, size, and power efficient alternative to DSP design solutions in high

performance OEM products for the Cellular Digital Packet Data wireless services.

ã 1996 Consumer Microcircuits Limited

12 3 4 5 6 7...25

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