– 5-3 –
5.2. Baseband Overview
5.2.1. Baseband Block Diagram
5.2.2. Summary of device/circuit changes to achieve the new features
The EB-X400 Baseband is based around a GSM chipset developed by Infineon chip set. The Infineon chipset consists of 2 chips,
one is a signal processing chip with DSP and CPU included the analogue baseband (e.g. RF, Audio, SIM), and the other is
U2006 (E-Power) which manages power supply and charge control.
Figure 5.2. Baseband Block Diagram
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Baseband Chipset U2001 (E-Gold + V3 / E-Power V1.83)
The EB-X400 baseband is based around a GSM chipset developed by Infineon. Thee chipset comprises two ICs as follows:
E-Gold + V3 (U2001) Signal processing IC with DSP and CPU and analogue baseband (e.g. RF, Audio, SIM).
E-Power (U2006) power management and charge control IC.
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Memory
The ROM/RAM capacity of the EB-X400 external memory U2008 is 64-Mbit Flash + 64-Mbit Flash + 32-Mbit mobile SRAM.
A 3-chip stacked MCP (Multi-Chip Package) is used. The 2-Mb E-Gold + V3 internal SRAM is required together with the
external SRAM U2008.
uCapacitor
MCU
C166S
OAK78 DSP
Clock
Generation
Power
Management
MMCI
Multicore
Debug
Support
GPT1/GPT2
Watchdog
CAPCOM
SSC
RTC
Osc.
ASC
0
ASC
1
DSP
Timer1
I2
S
DSP Serial
Comm.Interface/
DAI
Cipher Unit
P ROM
P RAM
Y RAM
X RAM
X ROM
Viterbi
HW
Accelerator
Switch matrix
Battery & Temp
Measurement
TAP Controller
JTAG
Boundary Scan
MUX
DAC
ADC
ADC
ADC
DAC
DAC
GMSK
Modulator
Baseband
Filter/
Cordic-
Processor
Voiceband
filters
RX and TX
RF Output
Power Control
AFC
Unit
RF Control
GSM
System Timer
Bus
Interface
Unit
LPS
A
GPRS Unit
SIM card
Interface
Keypad
Interface
External
Bus & Port
Controller
I2C
SRAM
256k x 8
PRAM
1k x 16
Shared Memory
ID Register
CHG
Charge Control
I2C bus
Interface
Control
SDBB
(Step-down)
LANA
LINT
LSIM
LRTC
Reference
I2C Bus
VSSPW
VANA
VINT
V3V VRTC
VSIM
LRF1
LRF2
LRF3
VRF2 VRF3
VRF1
U2006 (E-Power)
128Mbit Flash
(64M+64M)
+
32Mbit pSRAM
A[23:0]
D[15:0]
Key Pad
KP[9:0]
Melody Gen. IC
MIC Circuit
REC Circuit
PHF Circuit
PHF
RF Control Block
RF Block
SIM
Battery
DC
Jack
Charge
Circuit
VIB
VBAT
KEY LED Circuit
U2001 (E-GOLD+ V3)
U2008
Memory
ASC1
U3001
Companion
IC
Colour LCD
128x128
TFT 65K colour
Camera
Module
VGA CMOS
D[7:0]
A[2:1]
D[7:0]
D[7:0]
IrDA
Step up
DC/DC
VLED
VCHG
VLOG
Upper Unit
I2C Bus
8080 I/F
CHG LED
Circuit
Tri-LED
Circuit
SIM Unit
DSP
Timer2
Summary of Contents for EB-X400
Page 86: ...12 1 12 LAYOUT DIAGRAMS 12 1 Main Board U2001 ...
Page 87: ...12 2 ...
Page 88: ...12 2 Upper Face PCB 12 3 Green Black Black White ...
Page 89: ...12 3 Hinge PCB 12 4 ...
Page 90: ...12 4 SIM PCB 12 5 ...