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3. TECHNICAL BRIEF
3.3 26 MHz Clock (VCTCXO, X500)
The 26 MHz clock(X500) consists of a TCXO(Temperature Compensated Crystal Oscillator) which
oscillates at a frequency of 26 MHz. It is used within the SKY77328, base band
processor(AD6720,U101), Midi(U203, YMU762C-QZ) , CAMERA( U403,CL761A )
2V75_VVCXO
X500
3
1
OUT
VCONT
4
2
VCC
GND
26MHz
C544
2.2u
Figure 3-3. VCTCXO CIRCUIT DIAGRAM
- 18 -
R521
15K
C543
1000p
AFC
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