WENSHING®©
TRW-24L01
MODULE
2.4G ISM Transceiver
Version History
Version
V1.00
Date
August 15, 2013
Changes
1
st.
Edition
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TRW-24L01 Datasheet P.1
Key Features
• Worldwide 2.4GHz ISM band operation
• 250kbps, 1Mbps and 2Mbps on air datarates
• Ultra low power operation
•Programmable power:, -25, -15, -5, 0, 5 dBm
• 900nA in power down
• 26μA in standby-I
•RF CHIP Drop-in compatibility with nRF24L0
• Low cost
• 1.9 to 3.6V supply range
• Enhanced ShockBurst™
• Automatic packet handling
• Auto packet transaction handling
• 6 data pipe MultiCeiver™
Applications
• Wireless PC Peripherals
• 3-in-1 desktop bundles
• Toys
• Sports watches and sensors
• Home and commercial automation
• Active RFID
• Mouse, keyboards and remotes
• Advanced Media center remote controls
• Game controllers
• RF remote controls for consumer electronics
• Ultra low power sensor networks
• Asset tracking systems
Size View
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TRW-24L01 Datasheet P.2
Block Diagram
TRW-24L01 Function Block Diagram
2.4GHZ 5dBm
MODEM FIFO
PACKET HANDLER
CRC
TEMP
FRAME GAN
DIGITAL LOGIC
RX FILTER
RF CHIP
8 IRQ
7 MISO
3 CE
1 GND
5 SCLK
2 VDD
4 CSN
6 MOSI
1
Pin
1
2
3
4
5
6
7
8
Pin Function
Name
GND
VCC
CE
CSN
SCK
MOSI
MISO
IRQ
I/O
GND
Input
Digital Input
Digital Input
Digital Input
Digital Input
Digital Output
Digital Output
Description
Ground.
+1.8 to +3.6 V Supply Voltage Input to Internal
Regulators
Chip Enable Activates RX or TX mode
SPI Chip Select
SPI Clock
SPI Slave Data Input
SPI Slave Data Output with tri-state option
Mask able interrupt pin. Active low
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TRW-24L01 Datasheet P.3
2
Hardware Specification
2.1 Specification
Conditions: VDD =VCC= +3.3V, VSS = 0V, TA =25ºC
Parameter
VDD
IPD
ISTBY
FREQ
FSPACE
FXTAL
TOLXTAL
FD250K
FD1M
FD2M
T_TRX
IDC_TXMID
IDC_TXMIN
IDC_RX
PMAX
PMIN
PACC
SENS_250
SENS_1M
SENS_2M
CI_250
CI_1M
CI_2M
BLK1M_1
BLK1M_2
BLK1M_3
BLK2M_2
BLK2M_4
BLK2M_6
Description
Supply Voltage Range
Power down current
Standby current
Operating frequency
Channel spacing
Crystal frequency
Crystal tolerance
Frequency deviation @250Kbps
Frequency deviation @1Mbps
Frequency deviation @2Mbps
Standby to TX/RX time
TX DC current, 0dBm output power
TX DC current, minimum output power
RX DC current consumption
Output power at maximum power
Output power at minimum power
Power accuracy
Sensitivity <0.1% BER 250kbps
Sensitivity <0.1% BER 1Mbps
Sensitivity <0.1% BER 2Mbps
Co-channel rejection C/I @ 250kbps
Co-channel rejection C/I @ 1Mbps
Co-channel rejection C/I @ 2Mbps
1Mbps C/I in-band block 1MHz offset
1Mbps C/I in-band block 2MHz offset
1Mbps C/I in-band block 3MHz offset
2Mbps C/I in-band block 2MHz offset
2Mbps C/I in-band block 4MHz offset
2Mbps C/I in-band block 6MHz offset
130
20.5
10.8
26.6
5
-40
2
-92
-90
-88
3
5
8
-2
-21
-24
-21
-22
-35
-60
2400
1
16
60
1000
1100
2500
Min
1.9
Typ
3.3
9
47
2484
Max
3.6V
Unit
V
uA
uA
MHz
MHz
MHz
Ppm
kHz
kHz
kHz
us
mA
mA
mA
dBm
dBm
dB
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dB
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TRW-24L01 Datasheet P.4
3 CONTROL STATES
3.1 STATE DIAGRAM
TRW-24L01 can be set up as a primary transmitter (PTX) or a primary receiver (PRX).
A transmission pair must be set up as a PTX and a PRX, i.e. 2 PTXs cannot
communicate with each other, and neither can two PRXs. PTX/PRX is setup by the
RX_ON bit. Setting 0 makes device a PTX, and setting 1 makes device a PRX.
Figure 3 shows the typical state diagram of TRW-24L01 with auto-acknowledgement
(auto-ACK) feature disabled. Operation states are fully controlled by the MCU through
the power
VDD,
hardwire pin
CE,
and register bits PWR_ON and RX_ON.
When auto-ACK is enabled, PTX automatically switches to RX mode to receive the
ACK packet, switching back to TX for retransmission if necessary; PRX automatically
switches to TX mode to send the ACK packet. Figure 4 shows the PTX state diagram
in auto-ACK mode, and Figure 5 shows the PRX state diagram in auto-ACK mode.
Figure 3: TRW-24L01 State Diagram
3.1.1 POWER-ON RESET
When power is applied to
VDD
and is over 1.9V threshold, TRW-24L01 will run
power-on reset. Once power-on reset is completed, the device will be in power-down
mode.
3.1.2 POWER-DOWN MODE
In power-down mode, TRW-24L01 is in deep-sleep and only the SPI interface is
active. TRW-24L01 is in power-down mode when PWR_ON is set to 0.
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TRW-24L01 Datasheet P.5
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