LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.6 7 WLAN/Bluetooth/FM (WYSBNBGX6)
The KC910 device provides the highest level of integration for a mobile wireless system, with
integrated IEEE802. 11 b/g(MAC/baseband/radio), Bluetooth 2.0, and FM reveiver. The WYSBNBGX6
that is included of BCM4325 solution is supported three kinds of functions. It is the one antenna
structure which is supported of WLAN/Bluetooth in 2.4GHz band.
WLAN
The KC910 supports single-band 2.4GHz IEEE802.11b/g standardization. The WLAN module which is
consisted of the BCM4325 single chip device provides for the highest level of integration for a mobile
or handheld wireless system, with integrated IEEE802.11TM b/g (MAC/baseband/radio). The
BCM4325’s integrated CMOS WLAN 2.4GHz power amplifier provide sufficient output power to meet
the need of most WLAN devices. The interface between MSM6280 and WLAN module is the standard
interfaces SDIO v1.2 (4-bit and 1-bit).
Figure1.9 shows the WLAN system architecture in the KC910.
3. TECHNICAL BRIEF
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[Figure 1.10] WLAN system architecture
BCM4325
MSM6280
FILTER
MASW-
008955
EXT LNA IN
TX WLBG
SW WL TX
SW WL BT RX
WLAN_CMD
WLAN_CL
WLAN_RESET_N
WLAN_SDIO[3:0]
WLAN_HOST_WAKEUP
MGA-645T6
RX BG
EXT_LNA_GAI
Ext. LAN
DEA252450B
VREG_MSMP_2.7V
GPIO
GPIO
(WYSBNBGX6)
TCXO
32.768KHz
PM6658
SLEEP_CLK
WLAN_REG_ON
+VPWR
GPIO
MIC2238_AA
YML
VDD3_3
VDD1_2
inverter
BT_REG_ON
GPIO
+VPWR
R1114D281D
CLK_REQ