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Only for training and service purposes
LGE Internal Use Only
3. Technical Brief
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3.5. OFF-CHIP COMPONENTS
3.5.1 Bluetooth (BCM2070)
Bluetooth block of BL42K consists of a BCM2070 chip-set, an external crystal oscillator(26MHz), and a
Bluetooth chip antenna (2.4GHz). QSC6270, which is main HW solution of BL42K Model, doesn’t include BT
baseband core. Instead, Bluetooth chipset, BCM2070, contains stand-alone baseband processor (V2.1+EDR)
as well as BT RF block. An external crystal oscillator (26MHz) is used to provide reference frequency to
BCM2070.
Figure 1 shows the Bluetooth system architecture in the BL42K.
[Figure 1.5] Bluetooth system architecture
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3.5. OFF-CHIP COMPONENTS
3.5.1 Bluetooth (BCM2070)
Bluetooth block of BL42K consists of a BCM2070 chip-set, an external crystal oscillator(26MHz), and a
Bluetooth chip antenna (2.4GHz). QSC6270, which is main HW solution of BL42K Model, doesn’t include BT
baseband core. Instead, Bluetooth chipset, BCM2070, contains stand-alone baseband processor (V2.1+EDR)
as well as BT RF block. An external crystal oscillator (26MHz) is used to provide reference frequency to
BCM2070.
Figure 1 shows the Bluetooth system architecture in the BL42K.
[Figure 1.5] Bluetooth system architecture