參數(shù)資料
型號: PEF2080
廠商: SIEMENS AG
英文描述: S/T Bus Interface Circuit(SBC)
中文描述: S / T的總線接口電路(SBC)的
文件頁數(shù): 72/74頁
文件大?。?/td> 2620K
代理商: PEF2080
Semiconductor Group
73
Electrical Characteristics
ECHO Characteristics
The timing of the ECHO output (pin X2, TE mode) is identical with that of output SDO: however, the
signal is “1” everywhere except in bit positions 24 and 25 (“D”-bit positions) of IOM frame, where it
is equal to the E bits received from the S interface.
Adaptive Receiver Characteristics
The integrated receiver uses an adaptively switched threshold detector. The detector controls the
switching of the receiver between two sensitivity levels. The hysteresis characteristics of the
receiver are shown in
figure 45
.
Figure 45
Switching of the Receiver between High Sensitivity and Low Sensitivity
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