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  Holtek Semiconductor Electronic Components Datasheet  

BC9824 Datasheet

Low Power High Performance 2.4GHz GFSK Transceiver

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BC9824
Low Power High Performance
2.4GHz GFSK Transceiver
Features
2400-2483.5MHz ISM band operation
• Support 250Kbps,1Mbps and 2Mbps air data rate
• Programmable output power
• Low power consumption
• Tolerate ± 60ppm 16MHz crystal
• Variable payload length from 1 to 32bytes
• Automatic packet processing
• 6 data pipes for 1:6 star networks
• 1.9V to 3.6V power supply
• 4-pin SPI interface with maximum 8MHz clock rate
• 20-pin QFN package
Applications
• Wireless PC peripherals
• Wireless mice and keyboards
• Wireless gamepads
• Wireless audio
• VOIP and wireless headsets
• Remote controls
• Consumer electronics
• Home automation
• Toys
• Personal health and entertainment
General Description
BC9824 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.
BC9824 operates in TDD mode, either as a transmitter
or as a receiver.
The RF channel frequency determines the center of
the channel used by BC9824. 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 BC9824 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.
Block Diagram
RFP
RFN
Integrated
TDD RF
Transceiver
FM
Demodulator
Data Slicer
Power
Management
FM
Modulator
Gaussian shaping
Rx FIFO
Packet
Processing &
State Control
Tx FIFO
SPI
Interface
Register
banks
CSN
SCK
MOSI
MISO
IRQ
CE
XTALP XTALN
Rev. 1.10
1 June 28, 2017


  Holtek Semiconductor Electronic Components Datasheet  

BC9824 Datasheet

Low Power High Performance 2.4GHz GFSK Transceiver

No Preview Available !

Pin Assignment
BC9824
VDDPA
RFP
RFN
VSS
VDD3RXRF
20 19 18 17 16
1 15
2 14
3
BC9824
20 QFN-A
13
4 12
5 11
6 7 8 9 10
MOSI
MISO
IRQ
CSN
CE
Pin Description
Pin No.
Symbol
RF and Analog
2 RFP
3 RFN
7 CDVDD
18 XTALP
19 XTALN
Digital
11 CE
12 CSN
13 IRQ
14 MISO
15 MOSI
16 SCK
Power and Ground
1 VDDPA
5 VDD3RXRF
6 VDD3IF
8 VDD3B
4 VSS
9 VSS
17 VSS
20 VSS
10 NC
I/O Function Description
RF RF output (PA)/input (LNA), port P
RF RF output (PA)/input (LNA), port N
O Digital regulator output decoupling capacitor
O Crystal oscillator, node P (inverter output)
I Crystal oscillator, node N (inverter input)
DI Chip enable activates RX or TX mode
DI SPI chip select, active low
DO Maskable interrupt pin, active low
DO SPI slave data output with tri-state option
DI SPI slave data input
DI SPI clock
Power
Power
Power
Power
Ground
Ground
Ground
Ground
1.8V regulator output for PA,TX:1.8V, RX:0V
RX front-end power supply (1.9V to 3.6V DC)
RX/TX IF power supply (1.9V to 3.6V DC)
Digital power supply (1.9V to 3.6V DC)
Ground (0V)
Ground (0V)
Ground (0V)
Ground (0V)
No connection
Rev. 1.10
2 June 28, 2017


Part Number BC9824
Description Low Power High Performance 2.4GHz GFSK Transceiver
Maker Holtek Semiconductor
Total Page 22 Pages
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