參數(shù)資料
型號: 30770
廠商: Dresden Elektronik
文件頁數(shù): 34/74頁
文件大小: 2001K
描述: SET DERFNODE FOR AVR HOUSING
標準包裝: 1
User Manual
Version 1.1
2011-07-15
 
  deRFnode and deRFgateway
 
 
 
 
dresden elektronik
ingenieurtechnik gmbh
Enno-Heidebroek-Str. 12
12 7 Dr
n
rm  n
Tel.: +49 351  31 85 00
Fax: +49 351  3 18 50 10
wireless@dresden-elektronik.de
www. r
n- l k r nik.
Page 34 of 56
 
 
Figure 23: Fixed LDO TPS79433DGN
 
 
Figure 24: Adjustable LDO TPS78001
 
8.6.    Supervisor
The assembled low-power supervisor LTC2935ITS8-1 has selectable threshold voltages.
They can be set by the 0R resistors [R58], [R59], [R60], [R61], [R62] and [R63]. If the voltage
level goes below the threshold, the supervisor sets a low active reset on Pin 5. This should
provide an optimal function of deRFnode and deRFgateway. In some cases it is not useful to
get a reset. If the jumper [JP4] will not be set, the supervisor reset signal will not affect the
circuit.
 
Reset:
Pin 5
 
 
 
 
 
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