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MT90812AL

更新时间： 2024-01-31 00:35:32
品牌 Logo 应用领域
MITEL 开关电信集成电路
页数 文件大小 规格书
105页 336K
描述
Integrated Digital Switch (IDX)

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中文翻译

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MT90812AL 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Active零件包装代码：LCC
包装说明：QCCJ, LDCC68,1.0SQ针数：68
Reach Compliance Code：compliantHTS代码：8542.39.00.01
风险等级：5.2JESD-30 代码：S-PQCC-J68
JESD-609代码：e0长度：24.23 mm
功能数量：1端子数量：68
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：QCCJ
封装等效代码：LDCC68,1.0SQ封装形状：SQUARE
封装形式：CHIP CARRIER峰值回流温度（摄氏度）：225
电源：5 V认证状态：Not Qualified
座面最大高度：4.57 mm子类别：Other Telecom ICs
最大压摆率：15 mA标称供电电压：5 V
表面贴装：YES技术：CMOS
电信集成电路类型：DIGITAL TIME SWITCH温度等级：INDUSTRIAL
端子面层：TIN LEAD端子形式：J BEND
端子节距：1.27 mm端子位置：QUAD
处于峰值回流温度下的最长时间：30宽度：24.23 mm
Base Number Matches：1

MT90812AL 数据手册

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MT90812  
Integrated Digital Switch (IDX)  
Advance Information  
DS5219  
ISSUE 2  
December 1999  
Features  
Ordering Information  
•
•
•
•
•
192 channel x 192 channel non-blocking  
switching  
MT90812AP  
MT90812AL  
68 Pin PLCC  
64 Pin MQFP  
-40 to +85°C  
2 local bus streams @ 2Mb/s supports up to 64  
channels  
Description  
In TDM mode, the expansion bus supports up  
to 128 channels at 8.192 Mb/s  
Rate conversion capability between local and  
expansion bus streams  
By integrating key functions needed in voice telecom  
application, the Integrated Digital Switch (IDX)  
provides a solution-on-a-chip for key telephone  
systems, PBX applications or CTI designs. Figure 2  
shows a typical configuration.  
Integrated conference bridge, supporting 15  
parties over 5 bridges  
•
•
Integrated PLL  
Frequency Shift Keying (FSK) 1200 baud  
transmitter, meeting Bell 202 or CCITT V.23  
standards  
The MT90812 provides non-blocking timeslot  
interchange capability for B, C and D channels, up to  
a maximum of 192 channels. It offers conference call  
capability for 15 parties over a maximum of 5  
conference bridges. With its integrated PLL, the  
MT90812 provides the necessary clocks to support  
•
•
•
•
32 channel dual tone generator, including 16  
standard DTMF tones and tone ringer  
Expansion bus in IDX Link mode, allows the  
interconnection of up to 4 IDX devices  
peripheral  
devices,  
such  
as  
codecs  
or  
Programmable per channel gain control from +3  
to -27dB, increments of 1dB for output channels  
interconnected IDX devices. Integrated into the IDX  
is the capability to detect supervisory signalling and  
to generate FSK 1200-baud signals. In addition, an  
Supervisory signalling cadence detection  
capability  
integrated  
digital  
tone  
generator  
produces  
continuous dual tones, including standard DTMF.  
•
•
•
HDLC resource allocator  
D-channel buffering of message information  
With its programmable gain control, the IDX allows  
users to use codecs without gain control and also  
centrally manage conference calls.  
C-channel access for control and status  
registers  
•
•
Provides both variable and constant delay  
modes  
To support both small and large switching platforms,  
a built-in expansion Bus allows the interconnection of  
up to 4 IDX devices or external components such as  
Parallel microprocessor port, compatible to Intel  
and Motorola and National CPU’s  
•
•
Supports both A-law or u-law operation  
digital switches. When  
4
IDX devices are  
Supports both ST-BUS, GCI and HMVIP  
framing formats  
interconnected, the array is capable of switching 256  
channels (64x4), handling 60 conference parties  
(15x4) and generating additional tones including  
programmable ones. Other functions are also  
increased in this configuration. The functional block  
diagram is shown in Figure 1.  
Applications  
•
•
•
Computer Telephony Integration (CTI)  
Key Telephone Systems  
An evaluation board, MEB90812, is available  
complete with software and a user manual, which  
demonstrates the layout of a typical application  
board and facilitates the use of the MT90812, and  
peripheral devices such as Mitel’s DNIC products.  
Private Branch Exchange (PBX) Systems  
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