LG HB620 Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
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3.5.8 Bluetooth (M701 : LBDA23QJS0)
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 HB620T.
[Fig. 3.8] Bluetooth system architecture
1 2 3
4
5
6
7
8
9
10
11
12
13
14
15
LBRQ -2B43A
SYNC_DET/TX _EN
SBST
RX_BB/TX _BB
SBCK
SBDT
CLK _REF
XTAL _IN
VDD _MSM
VDD_BAT
VDD_I NT
VCC_OUT
GND
1 2 3
4
5
6
7
8
9
10
11
12
13
14
15
LBRQ -2B43A
SYNC_DET/TX _EN
SBST
RX_BB/TX _BB
SBCK
SBDT
CLK _REF
XTAL _IN
VDD _MSM
VDD_BAT
VDD_I NT
VCC_OUT
GND
BCM2004
16
BPF
A
NT
GND Pa rt
LDO Part
Supply Pa rt
Clo ck Part
BlueQ Interface Pa
rt
MSM 6280
Bluetooth Baseband
7
BT_TX _RX_N
SBST
BT_DATA
SBCK
SBDT
BT_CLK
TCXO
VREG_MSMP
VDD_
A
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LG HB620 Specifications

General

Brand	LG
Model	HB620
Category	Cell Phone
Language	English