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BK2425WD Datasheet(PDF) 3 Page - List of Unclassifed Manufacturers

Part # BK2425WD
Description  Low Power High Performance 2.4 GHz GFSK Transceiver
PDF  30 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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BK2425WD Datasheet(HTML) 3 Page - List of Unclassifed Manufacturers

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BK2425
Revision 1.0
Proprietary and Confidential
Page 3 of 30
1
General Description
BK2425 is a GFSK transceiver operating in
the world wide ISM frequency band at 2400-
2483.5 MHz. Burst mode transmission and up
to 2Mbps air data rate make them suitable for
applications
requiring
ultra
low
power
consumption.
The
embedded
packet
processing engines enable their full operation
with a very simple MCU as a radio system.
Auto re-transmission and auto acknowledge
give
reliable
link
without
any
MCU
interference.
BK2425 operates in TDD mode, either as a
transmitter or as a receiver.
The RF channel frequency determines the
center of the channel used by BK2425. The
frequency is set by the RF_CH register in
register bank 0 according to the following
formula: F0= 2400 + RF_CH (MHz). The
resolution of the RF channel frequency is
1MHz.
A
transmitter
and
a
receiver
must
be
programmed with the same RF channel
frequency to be able to communicate with
each other.
The output power of BK2425 is set by the
RF_PWR bits in the RF_SETUP register.
Demodulation is done with embedded data
slicer and bit recovery logic. The air data rate
can be programmed to 250Kbps, 1Mbps or
2Mbps by RF_DR_HIGH and RF_DR_LOW
register. A transmitter and a receiver must be
programmed with the same setting.
In the following chapters, all registers are in
register bank 0 except with explicit claim.
Figure 1 BK2425 Chip Block Diagram
Integrated
TDD RF
Transceiver
XTALN
XTALP
FM
Demodulator
FM Modulator
Data Slicer
Rx FIFO
Tx FIFO
Gaussian
shaping
Packet
Processing &
State Control
Power
Management
CE
IRQ
CSN
SCK
MOSI
MISO
RFP
RFN



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