User's Manual

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The BM153 is a Class 2 Bluetooth sub-system using BlueCore5-Multimedia
External
chipset from
leading Bluetooth chipset supplier Cambridge Silicon Radio. BM153
interfaces
to 8Mbit of external
Flash memory When used with the CSR Bluetooth software stack, it provides
a fully
compliant
Bluetooth system to v2.1+EDR of the specification for data and voice
communications The module
and device firmware is fully compliant with the Bluetooth specification
V2.1+EDR,
The working
frequency is 2402~2480GHz total of 79 channels. It’s the master crystal
frequency
is 26MHz.
BlueCore5-Multimedia External ：The BlueCore5-Multimedia External is a
single-chip radio and
baseband IC for Bluetooth 2.4GHz systems.
FLASH: It is to save the firmware.
XTAL: Generate 26MHz system clock.
Balun：2.4GHz Balun, the unbalanced signal to balanced signal.
Filter：2.4GHz Bandpass filter
Modulated Type： GFSK π/4 DQPSK 8DPSK