Block Diagram

BLOCK DIAGRAM

(BASE UNIT)

SIDE_TONE

CIRCUIT

Crystal

10.368MHz

TR_RLY

TIP

RING

TEL_JACK

RF_Block

IC501

D101

Q141

Q161

DCDC

Converter

VBAT

IC502

IC601

IC721

Module

Q351

AVD/VDD

RF_VDD

VDD_PA

DC5.5V+

GND1

DC_Modular JACK

CHARGE

CIRCUIT

LED

LCD

KEY

PAD

+1.8V

IC421

Handset

+1.8V

IC722

Regulator

IC611

IC302

BATTER

PAGE 1
BLOCK DIAGRAM (BASE UNIT) LCD Q161 Crystal 10.368MHz LED Q141 TR_RLY SIDE_TONE CIRCUIT 3 4 D101 2 TEL_JACK TIP RING 1 +1.8V IC501 IC421 IC502 RF_Block AVD/VDD +1.8V Q351 DC_Modular JACK VBAT Handset DCDC Converter CHARGE CIRCUIT VDD_PA RF_VDD IC721 BT Module IC601 IC611 IC302 KEY PAD IC722 Regulator 2 DC5.
PAGE 2
TEL INTERFACE CIRCUIT Q141 R141 TX AMP SIDE TONE C101 1 RING P101 R101 C103 C102 BELL DETECT CONTROL CIRCUIT TIP SA103 2 REGULATOR CALLER ID DETECT R104 C106 4 D101 R102 C104 3 R103 C105 R142 RX AMP
PAGE 3
BLOCK DIAGRAM (1.9GHz RF Unit for Base unit) IC501 RF block PLL 3856-3843MHz /3859-3845MHz ANT1 ANT2 10.
PAGE 4
BLOCK DIAGRAM (2.