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4-14
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4.7.
Bluetooth Module
Figure 4.10: Bluetooth Module
Bluetooth
BC313143A
VRF3
Balun/
Filter
BT26M
(26MHz)
UART_RTS
UART_CTS
UART_RX
UART_TX
PCM_SYNC
PCM_CLK
PCM_IN
PCM_OUT
USB_D-
USB_D+
SPI_MOSI
SPI_MISO
SPI_CLK
SPI_CSB
XTAL_IN
XTAL_OUT
BT_RST
PIO[6]
PIO[7]
PIO[5]
PIO[4]
PIO[3]
PIO[2]
TX_B
TX_A
RF_IN
PIO[1]
PIO[0]
AIO[0]
AIO[1]
AIO[2]
PIO[10]
PIO[11]
PIO[9]
PIO[8]
OMAP310
PMB8870
SGOLD
I2C_SDA
I2C_SCL
PMB8611
PMIC
FSYS
AFC
AFC
VCXO_EN
VRF3
VRF1
VRF2
LRF1
2.85v,250mA
LRF2
2.85v,10mA
LRF3
2.65v,150mA
Vmain
VDDRF
VRF2
RF Sub-System
VCTCXO
26MHz
VRF1
PMB6258
VCXO_EN
VDDPW
VDDB
VLBB1
VLBB2
SDBB
SDBB
VDDC
SDBB
1.8v,850mA
LBB1
1.5v,170mA
LBB2
1.5v,220mA
Vmain
GPIO12
UART2_CTS
UART2_RTS
UART2_RX
UART2_TX
IP
C
Se
ri
a
l I/F
I2S1_CLK0
I2S1_TX
I2S1_RX
I2S1_WA0
I2S1
VRF1
EN
EN
BT-CLK-REQ
BT-Antenna
Bluetooth RF
DIF-D7
(I2S1-WA1)
VBT18
1.8V
VBT18
VBT18
U201
U100
U200
U304
U500
The X700 handset contains a Bluetooth module centered on Cambridge Silicon Radio’s (CSR) BlueCore3-ROM IC
(U201).This provides short range (typically 10 meters or less) connectivity from the handset to Bluetooth-enabled devices
such asheadsets, car kits, and personal computers in order to transfer voice and/or data. Shown below is the block diagram
of the X700 Bluetooth interface.
The Bluetooth IC connects to the UART2 interface on OMAP which provides the control and data interface to the application
processor.The 4-wire UART connection (TXD, RXD, RTS, CTS) uses the BlueCore Serial Protocol (H5) with error detection
and re-transmission.
The PCM audio connection from Bluetooth is connected to the I2S1 port on SGOLD. The PCM interface (with BT as the
Master) is configured for a 256kHz bit-clock and an 8kHz sync rate.
The Bluetooth chip is powered by the VRF3 (2.65v @ 150mA) regulator supplied by the SM-PWR IC. VRF3 supplies the I/O
block as well as an integrated 1.8v @ 100mA regulator (VBT18). This (VBT18) is used to power the RF portion, analog
section, core and memory of the Bluetooth sub-system.
PROVISIONAL ISSUE
Summary of Contents for EB-X700
Page 91: ... 9 23 10 From the Modes pull down menu select EEPROM PROVISIONAL ISSUE ...
Page 107: ...12 6 Mini SD SIM PCB 12 6 PROVISIONAL ISSUE ...
Page 109: ...12 8 LCD PCB 12 8 PROVISIONAL ISSUE ...
Page 110: ...13 LAYOUT DIAGRAMS 13 1 Main PCB Top View 13 1 1 2K PROVISIONAL ISSUE ...
Page 111: ...13 2 Main PCB Bottom View 13 2 1 5K 10K 10K 10K 10K 10K 1 5K PROVISIONAL ISSUE ...
Page 112: ...13 3 LCD PCB Bottom View 13 3 PROVISIONAL ISSUE ...