Block Diagram; Baseband - Panasonic EB-X300 Service Manual

10. BLOCK DIAGRAM

10.1. Baseband

26MHz_BB
R.F. Block
TXIQ
RXIQ
Control Signal
VBAT
Backlight
LED
MIC VINNO R P/N
VOUTNOR P/N
Receiver
3 in 1
Analogue
Voice
Phone
Switch
Data
Jack
PJ_FUNC_SEL
Speaker
MA3
BBCLK
Buffer
VVCXO
RF Control Bus
U201
GSM Analogue
Baseband and
Codec & Power
Management
Charging
Circuit
BACKLIGHT
LIGHT 1/2/3
AIN1P/1N
VBAT
AOUT1P/1N
TX/RX
VCORE
VMEM
VINAUX P/N
VEXT
AIN2P/2N
VEXT
VOUTAUX P
VSIM
AOUT3P
VSIM
VRTC
VABB
VABB
VVCXO
VVCXO
LOUD
VMIC
AOUT3N
VMIC
Keypad Data Bus
Keyboard
CLKIN
A,B,C Serial Port
EXTPWR
3 in 1
Over Voltage
Power
Protect Circuit
Jack
GSM Digital
Baaseband
PMOSFET
Processor
Li-Ion
Battery
VCORE
VCC
VMEM
VMEM
VRTC
VRTC
RTC
Battery
PJ_FUNC_SEL
– 10-1 –
VBAT
Vibrator
GPIO4
USC Data Bus
Handfree Input
GPIO34
Address Bus
Flash/SRAM
(128MB/32MB)
Data Bus
U101
LCD Module
U401
AIT800G
LCD Control Bus
RTC
32.768 kHz
OSC
Crystal
SIM Interface
SIM
VSIM Socket
GPIO2
TX/RX
HANDFREEIN
U102
Memory
VMEM
VMEM
CMOS
CAMERA