Read Panasonic KX-TCA275RU Service Manual online
6
KX-TCA275RU
4 Technical Descriptions
4.1.
Block Diagram (Handset)
KX-TCA275RU BLOCK DIAGRAM (HANDSET)
RFmodule
(DECT)
(DECT)
RF 3.0V
Batt
AFE
DSP
MIDI
Receiving
Calls
Making
Calls
D/A
A/D
RF I/F
Decoder
Encoder
BMC
1.8V
ACS0
16
16
16
3.0V
3.0V
3.0V
Flash
(32Mbit)
SRAM
(2Mbit)
(2Mbit)
Color
LCD
ACS1
ACS2
16
CR16C
3.0V
Peripheral
Backlit
5.0V
PWM
BBIC (SC14428F)
Power
Management
Batt
Keys
Xtal
10.368MH
(US-DECT:
Low deviation)
Low deviation)
UART
JTAG
Charger
Circuit
Circuit
Charge Current
Charge on/off
Battery
3.6V
3.6V
Batt
Regulator
RF 3.0V
5.0V
Regulator
3.0V
1.8V
Batt
3.0V
Batt
Tr
Batt
Vib
3.0V
LED(G)
LED(R)
LED(YG)
Tr
Tr
Tr
Charge LED
Key backlit
OP-Amp
H
/
S
J
a
c
k
Mic Bias
Rear
Speaker
Receiver
Mic
H/S
detect
Ant
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