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Circuit Description
5-5
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VC-TCXO
The VC-TCXO (OSC301) is used as a reference
source of the frequency synthesizer. It generates
19.20MHz reference frequency. It is a voltage-
controlled
temperature-compensated
crystal
oscillator with the frequency stability of 19.20MHz ±
2.0ppm over all useful temperature range. The
frequency is controlled by the voltage from the
MSM6000 considering the ambient temperature.
TEMPERATURE-TO-VOLTAGE CONVERTOR
The
temperature-to-voltage
convertor
(TH101)
detects the peripheral temperature. It is used to
compensate the variance in characteristics of an
active component due to the temperature difference.