User Guide

PAMS
Technical Documentation
RAE-3
3. RF+System Module BL8
Page 3 – 11
issue 1 06/01
The interface from the system part and the RF and audio sections is handled
by a specific ASIC COBBA_GJP. This ASIC provides A/D and D/A conversion
of the in–phase and quadrature receive and transmit signal paths and also A/D
and D/A conversions of received and transmitted audio signals. Data transmis-
sion between the COBBA_GJP and the MADLinda is implemented using serial
connections. Digital speech processing is executed by the MADLinda ASIC.
External audio is connected to RAE-3 through system connector’s XMIC and
XEAR lines.
Serial connection channels in RAE-3 include IrDA, MBUS, and serial port.
MBUS and serial port have logic level signals which are connected through sys-
tem connector. IR transceiver is next to the system connector at the bottom end
of RAE-3 device.
Block Diagram
Figure 2. RAE-3 SYSTEM PART BLOCK DIAGRAM
LMM
(DSP)
SDRAM
XIP MEMORIES
SERIALFLASH
PCM
CODEC
RFI
COBBA
_GJP
CCONT
B
ACK UP
BATTERY
32
KHZ
XTAL
CHAPS
BATTERY
CONNECTOR
SIM
CARD
CONNECTOR
SYSTEM
CONNECTOR
MULTI
MEDIA
CARD
CONNECTOR
UI
CONNECTOR
RF
SYS
RF SUPPLIES
SYSTEM SUPPLIES
FLASH
ARM925
MPU
SUBSYSTEM
MADLINDA
PDA
PERIPHERALS
SYSTEM
LOGIC
IRDA
MIC
POWER
AUDIO
_RFI
UI SIGNALS
SERIAL
INTER-
FACES
EXTERNAL
AUDIO
CHARGER
EXTERNAL
RF
RF SIGNALS
AUDIO
AMP
VBB
REG.
TRAFFIC
CONTROLLER
VMMC
REG.
VCORE
REG.
ACCPWR
REG.
AUDIO
(EARP,
SPEAKER)
HALL
SENSOR