10
KX-TGH260/KX-TGH262/KX-TGH263/KX-TGH264/KX-TGHA20/KX-TGA20
4.2.
Block Diagram (Base Unit_Main)
KX-TGH260/262/263/264 BLOCK DIAGRAM (Base Unit_Main)
SIDE_TONE
CIRCUIT
Crystal
10.368MHz
TR_RLY
TIP
RING
TEL_JACK
VRF
/VPA
RF_Block
IC501
BBIC
DC5.5V+
GND
DC_JACK
+
-
CHARGE
3
4
2
1
D101
CHARGE
DETECT
Q701
Q141
Q161
REGULATOR
IC302
Power Down
DET
Power supply
at AC failure
KEY
PAD
LED
VBAT
PDN_DET
CHARGE_DET
IC601
IC611
IC502
IC721
BT
Module
Q301
+1.8V
+3.0V
AVD/VDD
QSPI
CIDINp
CIDINn
P3_6
MICh
LSRp
RF_VDD
VDD_PA
ANT1
ANT2
IC722
BT_1.8V
BT_1.8V
CKM/STM
EEPROM
FLASH
(Voice
prompt)
FLASH
(Program)