SN54LS624

The SN54LS6424 is voltage-controlled oscillators(VCOs) .It is improved versions of the original VCO family:SN54LS124,SN54LS324 thru SN54LS327,SN74LS124,and SN74LS324 thru SN74LS327.These new devices feature improved voltage-to-frequency linearity,range,and compensation.With the exception of the'LS624 and'LS628,all of these devices feature two indeprendent VCOs in a single monolithic chip.The'LS624,'LS625,'LS626,and'LS628 have complementary Z outputs.The output frequency for each VCO is established by a single external component (either a capacitor or crystal)in combination with voltage-sensitive inputs used for frequency control and frequency range.SN54LS6424 has a voltage-sensitive input for frequency control;however,the'LS624,'LS628,and'LS629 decices also have one for frequency range.

Features of the SN54LS6424 are:(1)Separate Supply Voltage Pins for Isolation of Frequency Contrsl Inputs and Oscillators from Output Circuitry;(2)Highly Stable Operation over Specified Temperature and/or Supply Voltage Ranges.

The absolute maximum ratings of the SN54LS6424 can be summarized as:(1)Supply voltage,Vcc:7V;(2)Input voltage:Enable input,7V;Frequency control or range input,7V(3)Operating free-air temperature range:SN54LS'Circuits,-55 to125;SN74LS'Circuits,0 to 70(4)Storage temperature range:-65 to 150.