Panasonic KX-TGF310RUM / KX-TGF320RUM / KX-TGF320UCM / KX-TGFA30RUM Service Manual ▷ View online
8
KX-TGF310RUM/KX-TGF320RUM/KX-TGF320UCM/KX-TGFA30RUM
4 Technical Descriptions
4.1.
Block Diagram (Base Unit_Main)
KX-TGF310/320 BLOCK DIAGRAM (Base Unit_Main)
IC501
BBIC
Crys
ta
l
10.
3
68M
H
z
KEY
PAD
IC
6
0
1
Flas
h
(V
oic
e
P
rom
pt
)
SIDE T
O
NE
CIRCUIT
LS
Rp
MI
C
h
Q161
Q1
4
1
TR
R
L
Y
P3
_
6
Q141
䠇䡚
䠉䡚
D101
T
E
L
Ja
ck
CI
DI
Nn
CI
DI
Np
IC
5
0
2
Flas
h
(P
rogram
)
Q
SPI
AVD
/VD
D
+1.
8
V
(V
DD1)
VBAT
Q301
VBAT
(V
DD3)
DCDC
Convert
e
r
IC
3
0
2
Charge
Cont
rol
Ci
rc
ui
t
RF
B
loc
k
RF_VDD
VDD_PA
AN
T1
AN
T2
LCD
mo
d
u
le
STM
IC421
TIP
RING
DC 5.5V
GND
Battery
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KX-TGF310RUM/KX-TGF320RUM/KX-TGF320UCM/KX-TGFA30RUM
4.2.
Circuit Operation (Base Unit)
4.2.1.
Outline
Base Unit consists of the following ICs as shown in Block Diagram (Base Unit_Main) (P.8).
• DECT BBIC (Base Band IC): IC501
- Handling all the audio, signal and data processing needed in a DECT base unit
- Controlling the DECT specific physical layer and radio section (Burst Module Controller section)
- ADPCM code filter for speech encoding and speech decoding (DSP section)
- Echo-cancellation and Echo-suppression (DSP section)
- Any tones (tone, sidetone, ringing tone, etc.) generation (DSP section)
- DTMF receiver (DSP section)
- Clock Generation for RF Module
- ADC, DAC, timer, and power control circuitry
- PLL Oscillator
- Detector
- Compress/Expander
- First Mixer
- All interfaces (ex: QSPI FLASH MEMORY, EEPROM, LED, Analog Front End, etc.)
- Integrated 1.9GHz PA for DECT
- Controlling the DECT specific physical layer and radio section (Burst Module Controller section)
- ADPCM code filter for speech encoding and speech decoding (DSP section)
- Echo-cancellation and Echo-suppression (DSP section)
- Any tones (tone, sidetone, ringing tone, etc.) generation (DSP section)
- DTMF receiver (DSP section)
- Clock Generation for RF Module
- ADC, DAC, timer, and power control circuitry
- PLL Oscillator
- Detector
- Compress/Expander
- First Mixer
- All interfaces (ex: QSPI FLASH MEMORY, EEPROM, LED, Analog Front End, etc.)
- Integrated 1.9GHz PA for DECT
• FLASH MEMORY: IC601
- Voice Prompt (TAM) D/L Area
- ICM/OGM Recording Area
- ICM/OGM Recording Area
• Additionally,
- Power Supply Circuit (+3.0 V, +1.8 V output)
- Crystal Circuit (10.368 MHz)
- Charge Circuit
- Telephone Line Interface Circuit
- Crystal Circuit (10.368 MHz)
- Charge Circuit
- Telephone Line Interface Circuit
• QSPI FLASH MEMORY IC502
- Main Program D/L Area
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KX-TGF310RUM/KX-TGF320RUM/KX-TGF320UCM/KX-TGFA30RUM
4.3.
Tel Interface Circuit
TX
AMP
SIDE TONE
RX
AMP
CONTROL
CIRCUIT
CALLER ID
DETECT
BELL
DETECT
P101
R142
3
4
2
1
C101
Q141
C102
SA101
TIP
RING
R141
REGULATOR
C104
R102
C106
R104
C103
R101
C105
R103
D101
11
KX-TGF310RUM/KX-TGF320RUM/KX-TGF320UCM/KX-TGFA30RUM
4.4.
Block Diagram (Base Unit_RF Part)
10.368
MHz
IC501 RF block
TXDATA
ANT1
ANT1
RF_TXp
RF_TXn
RF_RXp
RF_RXn
ANT2
ANT2
Control
Logic
RXDATA
Mixer
Demodulator
PLL
3856-3843MHz
/3859-3845MHz
Modulator
DA802
KX-TGF310/320 BLOCK DIAGRAM (
B
a
s
e
U
n
it
_
R
F P
a
rt
)
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