CXD2951GL-4
RTC crystal and TCXO
In order to operate CXD2951GL-4 appropriately, the recommended characteristics of RTC crystal and TCXO
is shown below.
Recommended characteristics of RTC crystal
Operating temperature
Nominal frequency
Frequency tolerance
Frequency temperature coefficient
Frequency peak temperature
Frequency aging
–40 to +85°C
32.768kHz
±20ppm
–0.04ppm/°C2 (Max.)
+25 ± 5°C
±3ppm/year
Recommended characteristics of TCXO
Operating temperature
Frequency tolerance
Frequency vs. temperature
Frequency vs. supply voltage
Frequency vs. load
Frequency aging
–40 to +85°C
±2.0ppm
±2.5ppm
±0.2ppm
±0.2ppm
±1ppm/year
Recommended parts
RTC crystal
TCXO
EPSON FC-255
NDK SNA3088B (NT5032 series)
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