WENSHING®©
TRW-24G
RF MODULE
Wireless High Frequency Transceiver Module (RF GFSK)
Version History
Version
V1.01
V1.02
V1.03
V1.04
V1.05
V2.00
Date
Jun 13, 2007
Aug 20, 2007
Mar 15, 2008
May 7, 2008
Feb 28, 2011
May 12, 2011
Changes
1
st.
Edition
2
nd.
Edition
3
rd.
Edition
4
th.
Edition
5
th
Edition
Add in direct mode
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TRW-24G Datasheet P.1
Content
1
1.1
2
3
4
4.1
4.2
5
5.1
5. 1. 1
5.1.2
5.1.3
5.2
5.3
5.4
5.5
5.5.1
5.5.2
5.5.3
5.5.4
5.6
5.6.1
5.6.2
5.6.3
6
6.1
6.1.1
6.1.1.1
6.1.1.2
6.2
7
Product De scription .......................................................................................................3
Key Feature ...................................................................................................................3
Block Diagram ...............................................................................................................4
Pin Function ..................................................................................................................4
Hardware Specification..................................................................................................5
Specification..................................................................................................................5
Reference schematics ...................................................................................................6
Configuration and Operation Modes .............................................................................7
Configuration Mode .......................................................................................................8
Configuration of ShockBurst
TM
operation: ....................................................................8
Configuration for Direct Mode operation .......................................................................8
Configuration Word Detailed Description ......................................................................9
ShockBurst
TM
configuration......................................................................................... 10
General device configuration ...................................................................................... 12
Data Package Description............................................................................................ 14
ShockBurst ............................................................................................................... 15
ShockBurst
TM
TM
principle ................................................................................................ 15
TM
TM
TRW-24G ShockBurst
TRW-24G ShockBurst
Duoceiver
TM
Transmit ................................................................................ 16
Receive ................................................................................. 18
Simultaneous Two Channel Receive Mode .............................................. 18
Direct Mode ................................................................................................................. 20
Direct Mode Transmit: ................................................................................................. 20
Direct Mode Receive:................................................................................................... 20
DuoCeiver™ Simultaneous Two Channel Receive Mode............................................. 20
Important Timing Data ................................................................................................. 31
Configuration mode timing .......................................................................................... 33
ShockBurst
ShockBurst
ShockBurst
TM
TM
TM
Mode timing .......................................................................................... 33
TX : ........................................................................................................ 33
RX ......................................................................................................... 34
Output Power adjustment ............................................................................................ 34
TRW-24G Mechanical Drawing..................................................................................... 35
Appendix
1
2
Demo Program - EM78P 156E MCU .............................................................................. 37
Demo Program - C8051F330 MCU................................................................................ 54
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TRW-24G Datasheet P.2
1 Product Description
TRW-24G is a wireless transceiver module which adopts 2.4G ISM band with printed ant enna on
board to provide the optimal transmission and reception in signal. TRW -24G is a good solution
for short and median range applications, such as Wireless Joysticks, cordless phone, wireless
earphone, wireless mouse and key board, due to its adjustable transmission power level. It is also
suitable for surveillance system because of its frequency hopping technology which provides a
safe
1.1 Key Feature
Frequency Range: 2.4~2.527GHz
Modulation: GFSK
Work Voltage: 3V
Channel No.: 128 CH
Output Power: Max. 0 dBm.
Active Mode : ShockBurst Mode and Direct Mode
Data Rate:
1 Mbps at ShockBurst Mode
250 Kbps at Direct Mode
Transmission range : 150M at ShockBurst Mode
280M at Direct Mode
Max two channels active simultaneously
Built-in antenna.
Low Power consumption: Active@1Mbps: 25 mA
Standby: 12 uA
Operating Temperature: -10~+70℃
Application : Wireless Joysticks, Wireless Speaker, Wireless Earphone , Wireless Cell
phone , Wireless Intercom , Wireless Mouse, Wireless Keyboard，Surveillance
and security system and Data Communication.
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TRW-24G Datasheet P.3
2 Block Diagram
This block diagram details the whole structure of this module which allows user to adopt two
channels simultaneously without adding any extra components except micro-controller. We shall
have reference schematic how this module works with micro-controller in the subsequence.
3 Pin Function
Pin
1
Name Category
CLK1
Digital
I/O
Input/Output
Description
For channel 1 clock
TX: Clock input
RX: Clock input/output
Chip selection activates Configuration Mode
For channel 2 clock
Rx: Clock input/output
Chip Enable to active RX / TX mode
H: TX mode
L: Rx mode
Ground
Power supply
2
3
4
CS
CLK2
CE
Digital
Digital
Digital
Input
Input/Output
Input
5
6
7
8
9
10
GND
VCC
DR2
DOUT
DR1
DATA
Power
Power
Digital
Digital
Digital
Power
Output
Output
Output
Input/output
Data ready for channel 2 to output (*)
H: Data ready for accessing
Channel 2 Data output
Data ready for channel 1 to output (*)
H: Data ready for accessing
DATA pin can act as channel 1 data output
and configuration data input pin.
CS = H, Configuration data input
CS = L, Channel 1 data output
*
DR1 & DR2 are only available for ShockBurst mode.
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TRW-24G Datasheet P.4
4 Hardware Specification
4.1 Specification
Conditions: VDD = +3V, VSS = 0V, TA = - 40º to + 85º
C
C
1) Usable band is determined by local regulations
2) The crystal frequency may be chosen from 5 different values (4, 8, 12, 16, and 20MHz) which are
specified in the configuration word, see Table 9. 16MHz are required for 1Mbps operation.
3) Data rate must be either 250kbps or 1000kbps.
4) Antenna load impedance = 100W+j175W
5) Antenna load impedance = 100W+j175W. Effective data rate 250kbps or 1Mbps.
6) Antenna load impedance = 100W+j175W. Effective data rate 10kbps.
7) Current if 4 MHz crystal is used.
8) 250kbps / 1000kbps.
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TRW-24G Datasheet P.5
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