Only For Training And Service Purposes - LG KF700 Service Manual

3. TECHNICAL BRIEF
3.5.8 Bluetooth (M100 : LBRQ-2B43A)
The MSM6280 includes BT baseband embedded BT 1.1 compliant baseband core, so the other
bluetooth components are bluetooth RF module and Antenna. [Fig. 3.8] shows the bluetooth system
architecture in the KF700.
ANT
BPF
16
GND Part
GND
1 6
LGE Internal Use Only
LBRQ-2B43A
SYNC_DET/TX_EN
BCM2004
LDO Part
8 2 3
15
[Fig. 3.8] Bluetooth system architecture
- 30 -
BlueQ Interf ace Part
5
SBST 4
RX_BB/TX _BB
13
SBCK 11
SBDT 12
Clock Part
CLK_R EF
9
XTA L _IN 7
Supply Part
VDD_MSM 10
14
VDD_BAT
Copyright © 2008 LG Electronics. Inc. All right reserved.
MSM6280
Bluetooth Base band
BT_TX_RX_N
SBST
BT_DATA
SBCK
SBDT
BT_CLK
7 TCX O
VREG_MSMP
VDD_A

Only for training and service purposes