CSTCE8M00G15C99-R0

Ceramic resonators use the mechanical resonance of
piezoelectric ceramics. (Generally, lead zirconium
titanate: PZT.)
The oscillation mode varies with resonant frequency.
The table on the right shows this relationship.
As a resonator device, quartz crystal is well-known. RC
oscillation circuits and LC oscillation circuits are also
used to produce electrical resonance. The following are
the characteristics of CERALOCK®.
① High stability of oscillation frequency
Oscillation frequency stability is between that of
the quartz crystal and LC or RC oscillation circuits.
The temperature coefficient of quartz crystal is
10–6/°C maximum and approximately 10–3 to 10–4/°C
for LC or RC oscillation circuits. Compared with
these, it is 10–5/°C at –20 to +80°C for ceramic
resonators.
② Small configuration and light weight
The ceramic resonator is half the size of popular
quartz crystals.
③ Low price, non-adjustment
CERALOCK® is mass produced, resulting in low
cost and high stability.
Unlike RC or LC circuits, ceramic resonators use
mechanical resonance. This means it is not
basically affected by external circuits or by the
fluctuation of the supply voltage.
Highly stable oscillation circuits can therefore be
made without the need of adjustment.
The table briefly describes the characteristics of various
oscillator elements.