22
KX-TGF350N/KX-TGF352N/KX-TGF353N/KX-TG572SK/KX-TGF380M/KX-TGF382M/KX-TGF383M/KX-TGFA30N/KX-TGFA30M
4.9.
Circuit Operation (Handset)
4.9.1.
Outline
Handset consists of the following ICs as shown in
Block Diagram (Handset)
(P.20).
• DECT BBIC (
B
ase
B
and IC): IC1
- All data signals (forming/analyzing ACK or CMD signal)
- All interfaces (ex: Key, Detector Circuit, Charge, EEPROM, LCD)
• EEPROM: IC3
- Setting data is stored. (e.g. ID, user setting)
4.9.2.
Power Supply Circuit/Reset Circuit
Circuit Operation:
When powering on the Handset, the voltage is as follows;
BATTERY(2.2 V ~ 2.6 V: BATT+)
F1
BBC1 (IC1) 10 pin
The Reset signal generates IC1 (54 pin) and 1.8 V.
Start monitor
(IC1 57pin)
VDDC (1.2 V)
VBAT
Reset (RSTN)
(IC1_54 pin)
BBIC chip initialize
(CKM/STM)
GND
BATTERY
2CELL
BBIC
3.0V
3.0V
DOUBLER OUT (Charge Pump)
For all peripherals
3.0V
3.0V
EEPROM
LCD BACKLIT LED
GND
KEY LED
3.0V
4.0 output
External Charge Pump
Circuit or IC
4.0V
VBAT
VBAT
VDDC (1.2V)
3.0V
3.0V
LCD
Содержание KX-TGF350N
Страница 83: ...83 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 85: ...85 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 87: ...87 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 90: ...90 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 94: ...94 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 96: ...96 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 98: ...98 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...