- 您现在的位置：买卖IC网 > PDF目录378049 > PEF2080 (SIEMENS AG) S/T Bus Interface Circuit(SBC) PDF资料下载
参数资料
| 型号： | PEF2080 |
| 厂商： | SIEMENS AG |
| 英文描述： | S/T Bus Interface Circuit(SBC) |
| 中文描述： | S / T的总线接口电路（SBC）的 |
| 文件页数： | 26/74页 |
| 文件大小： | 2620K |
| 代理商： | PEF2080 |
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页第23页第24页第25页当前第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页
Semiconductor Group
27
Functional Description
2.4
Individual Functions
The SBC transmits data between the IOM interface and the line interface. The relative frame
positions have been selected to minimize the round trip delays of the B channels, which are:
125
μ
s for TE, NT and LT-S in normal IOM mode, max. 250
μ
s for LT-T in normal IOM mode and
LT-S in inverted mux mode and, finally, max. 375
μ
s for LT-T in inverted mux mode.
In the active state the data of the B channels are switched through transparently. The same applies
to the D channel, except in TE mode where D-channel switching is subject to the S bus D-channel
access procedure and collision detection.
S/T Interface Pre-Filter
In some applications it may be desirable to improve the signal-to-noise ratio of the received S/T
interface signal by filtering out undesirable frequency (usually high frequency) components. This
may be realized by an external pre-filter.
To simplify the implementation of this filter, an operational amplifier is integrated in the ISAC-S, as
shown in
figure 13
. By connecting an RC network between input SR2 and the extra pin UFI an
active RC filter of desired order can be realized (one example is shown in
figure 13b
).
Figure 13a
Prefilter Connections
相关PDF资料 |
PDF描述 |
|---|---|
| PEF22554 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| PEF22554E | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| PEF22554HT | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| PEF2256 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| PEF2256E | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PEF2080-N | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:S/T Bus Interface Circuit(SBC) |
| PEF2091 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:ICs for Communications(ISDN Echocancellation Circuit) |
| PEF2091F | 制造商:未知厂家 制造商全称:未知厂家 功能描述:?ISDN Echocancellation Circuit - 2B1Q Code? |
| PEF2091FV5.3 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:ICs for Communications(ISDN Echocancellation Circuit) |
| PEF2091HV5.3 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:ICs for Communications(ISDN Echocancellation Circuit) |
发布紧急采购，3分钟左右您将得到回复。