LG KE990 Service Manual - Page 25
Bluetooth M800 : LBRQ-2B43A
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3. TECHNICAL BRIEF 3.4.5 Bluetooth (M800 : LBRQ-2B43A) The ESM6270 includes BT baseband embedded BT 1.1 compliant baseband core, so the other bluetooth components are bluetooth RF module and Antenna. Figure3.4.5 shows the bluetooth system architecture in the KE990/KE990c. AN T LB RQ-2B43A Bl ueQ I nterf acePart SYN C_DET/TX _EN 5 ESM 6270 Bluetooth Baseband BT_TX _RX_N SBST 4 RX_BB/TX _BB 13 SBCK 11 SBST BT_DA TA SBCK 16 BPF BCM2004 SBDT 12 CLK _REF 9 Clo ck Part SBDT BT_CLK GND Part GND 1 6 8 15 VDD_I NT V CC_OUT L DO Part X TA L _I N 7 VD D_M SM 10 VD D_BA T 14 Supply Part 7 TCX O VR EG_M SM P VD D_A 2 3 [Figure 3.4.5] Bluetooth system architecture LGE Internal Use Only - 26 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes