Technical Descriptions; Block Diagram (Handset) - Panasonic KX-TCA275CE Service Manual

4 Technical Descriptions

4.1.

Block Diagram (Handset)

Rear
Speaker
Receiver
Mic
Charge LED
LED(G)
3.0V
LED(R)
Key backlit
3.0V LED(YG)
Batt
Vib
Charger
Circuit
Battery
3.6V
Batt
OP-Amp
J H
a /
Mic Bias
c S
k
H/S
detect
Tr
Tr
Tr
Tr
Charge Current
Charge on/off
Batt
5.0V
Regulator
RF 3.0V
BBIC (SC14428F)
AFE DSP
MIDI
D/A
Receiving
Calls
Making
A/D
Calls
CR16C
Batt
Peripheral
Power
Management
3.0V
Regulator
1.8V
KX-TCA275CE BLOCK DIAGRAM (HANDSET)
7
1.8V
BMC
3.0V
RFmodule
RF I/F
(DECT)
Decoder
Encoder
16
ACS0
16
16
ACS1
16
ACS2
PWM
Keys
Xtal
10.368MH
KX-TCA275CE
Ant
Batt
RF 3.0V
Flash
(32Mbit) 3.0V
SRAM
(2Mbit)
3.0V
Color
3.0V
LCD
Backlit
5.0V
Batt
UART
JTAG