74LS629 IC - Voltage Controlled Oscillators
Improved versions of the original VCO family with enhanced features
- Supply Voltage Min: 4.75V
- Supply Voltage Max: 5.25V
- High Level Output Current Max: -1.2mA
- Low Level Output Current Max: 8mA
- Operation Free Air Temperature Max: 70°C
- Package Includes: 1 X 74LS629 IC - (SMD Package) - Voltage Controlled Oscillators IC (74629 IC)
Top Features:
- Separate Supply Voltage Pins for Isolation
- Highly Stable Operation over Temperature Ranges
These new devices offer improved voltage-to-frequency linearity, range, and compensation compared to the original VCO family. Most devices in this series contain two independent VCOs on a single chip, with the exception of LS624 and LS628, which have complementary Z outputs. The output frequency for each VCO is determined by an external component (capacitor or crystal) along with voltage-sensitive inputs for frequency control and range adjustment.
The LS628 provides more precise temperature compensation than the LS624, requiring an external timing resistor for improved temperature coefficient. Figures 3 and 6 provide guidance on selecting the appropriate capacitor value for desired operating frequencies.
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