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KX-TGH210RUB/KX-TGH210RUW/KX-TGH212RUB/KX-TGH220RUB/KX-TGH220RUW/KX-TGH222RUB/KX-TGHA20RUB/KX-TGHA20RUW
4.4.4.
Power Supply Circuit
The power is supplied to the DECT BBIC, QSPI FLASH MEMORY, FLASH MEMORY, EEPROM and Charge Contact from AC
Adaptor (+5.5 V) as shown in Fig.101. The power supply is as follows;
Adaptor (+5.5 V) as shown in Fig.101. The power supply is as follows;
• DECT BBIC (IC501):
DC Jack (+5.5 V)
→ IC302 → IC501
DC Jack (+5.5 V)
→ IC302 → Q301 → IC501
• EEPROM (IC611):
DC Jack (+5.5 V)
→ IC302 → IC501→ IC611
• FLASH MEMORY (IC601) (for KX-TGH220 only):
DC Jack (+5.5 V)
→ IC302→ IC501→ IC601
• Charge Contact (CHARGE+):
DC Jack (+5.5 V)
→ R371 → R372 → D362→ CHARGE+
• QSPI FLASH MEMORY (IC502):
DC Jack (+5.5 V)
→ IC302 → Q301 → IC502
<Fig.101>
DC Jack
3.0V
REGULATOR
IC302
+5.5 V
+5.5 V
+ 3.0 V
+ 3.0 V
VDD3
VDD4
IC501
EEPROM
IC611
BBIC
Q301
+ 1.8 V
QSPI FLASH
IC502
TAM FLASH
VDD5
+ 3.0V_CP
+ 3.0V_CP2
IC601
RF Part
LEDs
VDD5
R371
R372
R362
CHARGE +
AC Adaptor
1
2
3
On
DC
S
1.8 V
Reset
(IC501(RSTN))
Off
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