ML7345 Family LSIs Hardware Design Manual
5
2.2. TCXO circuit (ML7345/ML7345D)
Please use a TCXO that satisfy the following specification.
Output load:
10kΩ//10pF
Output level:
0.8Vpp to 1.5Vpp
Frequency accuracy:
below ±10ppm
The ML7345 has integrated bias circuit and the DC bias is applied to the TCXO (#6) pin. A 0.1uF capacitor
should be placed on the TCXO line as following.
In ML7345, #5 pin is N.C. pin, then it should be open.
In order to low current, the TCXO should be disable when sleep mode.
Figure 2.2 External oscillator circuit (TCXO) configurations
TCXO
24MHz
0.1uF
TCXO(#6)
Bias
N.C.(#5)
