LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
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Bluetooth
The KC910 provides the Bluetooth 2.0 specification. The Bluetooth module is the optimal solution for
any voice or data application that requires the Bluetooth SIG standard Host Controller Interface (HCI)
using a high-speed UART and PCM. The Bluetooth solution has an integrated radio transceiver that
has been optimized for 2.4GHz Bluetooth wireless systems. It has been designed to provided low-
power, low-cost, robust communications for applications operating in the globally available 2.4GHz
unlicensed ISM band. It is fully compliant with the Bluetooth Radio Specification and meets or exceeds
the requirements to provide the highest communication link quality of service. Figure1.10 shows the
Bluetooth system architecture in the KC910.
[Figure 1.11] Bluetooth system architecture
MSM6280
BT_RESET_N
BT_PCM_SYNC
BT_PCM_IN
BT_PCM_OUT
BT_PCM_CLK
BT_WAKEUP
BT_HOST_WAKEUP
BT_UART_CTS
BT_UART_RTS
BT_UART_RXD
BT_UART_TXD
GPIO49
UART2
AUX_PCM
GPIO25
GPIO39
BCM4325
FILTER
TCXO
32.768KHz
PM6658
SLEEP_CLK
MASW-
008955
EXT_LNA_IN
TX_WLBG
SW_WL_TX
SW_WL_BT_RX
WLAN_REG_ON
MGA-645T6
RX_BG
EXT_LNA_GAI
N
Ext. LAN
DEA252450BT
+VPWR
VREG_MSMP_2.7V
GPIO50
MIC2238_AA
YML
VDD3_3
VDD1_2
BT_REG_ON
GPIO51
+VPWR
R1114D281D-
CLK_REG
(WYSBNBGX6)