Huawei G510 - Clock Circuit

G510 Maintenance Manual V1.0
INTERNAL
2013-01-28
Huawei Confidential
Page 44 of 96
Signal
Symbol
Description
Reference Measurement
or Waveform
VCHG
Input end of the external USB power
supply and the charging chip
0–5 V
VPH_PWR
Main power supply, supplying power to
the power module
Powering voltage
Voltage range: 0–4.2 V
BAT_FET_N
Control signal output port for the MOS
diode (Q201) of the battery
None
VBAT
Battery voltage
Battery voltage
Voltage range: 0–4.2 V
USB_HS_DP
Positive input of USB differential data
None
USB_HS_DN
Negative input of USB differential data
None
9.2.3 Clock Circuit
Circuit Diagram
Figure 9-10 shows the circuit diagrams of the 19.2 MHz clock.
Figure 9-10 Circuit diagrams of the 19.2 MHz clock