26 Mhz Clock (Vctcxo, X600); Only For Training And Service Purposes - LG KG280 Service Manual

3. TECHNICAL BRIEF

3.4 26 MHz Clock (VCTCXO, X600)

The 26 MHz clock(X600) consists of a TCXO(Temperature Compensated Crystal Oscillator) which
oscillates at a frequency of 26 MHz. It is used within the AD6549(U601), base band
processor(AD6720,U101), Midi(U204, YMU792) , BT Module(U702)
AFC
LGE Internal Use Only
X600
R622
1
VCONT
15K
2
GND
C647
26MHz
1000p
TG-5010LH-26M
EXSK0008101
Figure 3-3. VCTCXO CIRCUIT DIAGRAM
- 20 -
2V75_VVCXO
3
OUT
4
VCC
C648
2.2u
Copyright © 2007 LG Electronics. Inc. All right reserved.

Only for training and service purposes