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參數(shù)資料
| 型號： | PEB2445-N |
| 廠商： | SIEMENS A G |
| 元件分類： | 路由/交換 |
| 英文描述： | Multipoint Switching and Conferencing Unit - Attenuation MUSAC-A |
| 中文描述： | TELECOM, CONFERENCING CIRCUIT, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 19/70頁 |
| 文件大?。?/td> | 1236K |
| 代理商： | PEB2445-N |
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PEB 2445
Overview
Semiconductor Group
19
02.96
1.6
System Integration
Conferencing
The MUSAC-A is designed to connect any of the 512 PCM-input channels to any of
256 output channels. Any input channel up to a total number of 64 can be handled in
21 independent conferences simultaneously. Any conference combination from
3 subscribers in 21 conferences up to 64 subscribers in only one conference is possible.
In order to ensure an acceptable speech quality and to reduce echo and ‘singing’
problems, the input channels can be attenuated individually by 0, 3 dB, 6 dB or 9 dB and
the output channels by 0 or 3 dB; additionally, input signals below a threshold
programmable to four different levels are disregarded (see
chapter 4.5
).
To lessen the risk of instability in multiparty conferences the voice signal from every
second channel can be inverted so that disturbance signals in odd and even channels
are subtracted from one another.
If more capacity is needed, several devices can be connected. By connecting the
16 PCM-input lines in parallel to two MUSAC-As, a non-blocking switching matrix for
512 subscribers can be implemented: 128 input channels can be selected for up to
42 independent, simultaneous conferences.
Figure 7
shows such an arrangement. Due
to the tristate capability of the MUSAC-A larger switches with conferencing capability can
be easily formed.
Figure 7
Memory Time Switch 16/16 for a Non-Blocking 512 Channel Switch
with Conferencing Capability
相關(guān)PDF資料 |
PDF描述 |
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| PEB2445N | LTM4600 Evaluation Kit |
| PEB2447 | Memory Time Switch Extended Large MTSXL |
| PEB2447H | Memory Time Switch Extended Large MTSXL |
| PEB2466 | Four Channel Codec Filter with PCM- and m-Controller Interface SICOFI4-mC |
| PEB2466-HV1.2 | Four Channel Codec Filter with PCM- and m-Controller Interface SICOFI4-mC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PEB2445P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM， Other/Special/Miscellaneous |
| PEB2447 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Memory Time Switch Extended Large MTSXL |
| PEB2447H | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Memory Time Switch Extended Large MTSXL |
| PEB2447HV1.2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PEB2447H-V12 | 功能描述:IC SWITCH MEM TIME CMOS 100-MQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 專用 系列:* 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
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