LG KF700Q Service Manual page 31

3. TECHNICAL BRIEF
3.5.8 Bluetooth (M101: 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 KF700Q.
AN T
16 BPF
GND Pa rt
GND
1 6
LGE Internal Use Only
LBRQ -2B43A
SYN C_DET/TX _EN
RX_BB/TX _BB
BCM2004
LDO Pa rt
8 2 3
15
[Fig. 3.8] Bluetooth system architecture
- 32 -
BlueQ Interface Pa rt
5
SBST 4
13
SBCK 11
12
SBDT
Clo ck Pa rt
CLK _REF 9
7 7
XTAL _IN
Supply Pa rt
10
VD D _MSM
14
VD D_BAT
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
MSM 6280
Bluetooth Baseband
BT_TX _RX_N
SBST
BT_DA TA
SBCK
SBDT
BT_CLK
TCX O
VR EG_MSMP
VD D_A