Datasheet Help!

Discussion in 'General Electronics Chat' started by ectmlk, Jun 22, 2011.

  1. ectmlk

    Thread Starter Member

    Feb 11, 2008
    21
    0
    Hey All
    I am reading the datasheet for a KA3844B, after the main table of values and tolerances in a small section on page 4 it gives
    (VCC=15V, RT=10KΩ, CT=3.3nF, TA= 0°C to +70°C unless otherwise specified)
    what i would like to know is what RT refers to? Is this the resistance seen from Vcc to Gnd?

    Datasheet here: http://www.fairchildsemi.com/ds/KA/KA3844B.pdf

    cheers!
     
  2. KJ6EAD

    Senior Member

    Apr 30, 2011
    1,425
    363
    Resistor Timing like Capacitor Timing connected to pin 4 sets up the RC time constant for the oscillator.
     
  3. TBayBoy

    Member

    May 25, 2011
    148
    19
    R total is my guess :) it is on the schematic bellow the table.
     
  4. Ron H

    AAC Fanatic!

    Apr 14, 2005
    7,050
    656
    See page 6 for connection info and equations.
     
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