My application is wireless communication Digital speech transmission through Bluetooth, TRW-24DSHI can use on my application?
TRW-24DSHI transceiver can’t use on Bluetooth application. I have also a question about CE pin, i removed pull-up resistor as you said and try to turn module into sleep and it is not working. Module after attaching CE to GND is still working (it takes about 43mA).
Please change SMT 10R of resistor to 47K and attaching CE to GND, module current will be less 1uA. Please check attchment. What about sleep mode, what are the timings? How much time the module needs for switching from sleep to rx or tx mode?
We didn’t add Sleep Mode on TRW-24DSHI transceiver module. If you need to save electricity, please delete resistance from CE PIN on TRW-24DSHI, also control module power from user directly. When CE=0, module cute off power supply, timing from off power to RX or TX mode will be around 150ms. I have three questions on your TRW-24DSHI 1. Its max. speed is 250bps, which may turn insufficient for our purposes 2. It draws too much power in transfer mode 3. Can you give us the timing diagram for this module - we`re interested in SLEEP - StandBy & StandBy - Tx/Rx times.
Provide you two solutions: TRW-24DSHI ( no MCU inside) 1. 250Kbps: this needs you to write program for controlling on MCU of your main board. 2. Much output power: this needs you to write program for controlling on MCU of your main board. 3. This type already has SLEEP - StandBy & StandBy - Tx/Rx times function. TRW-24DSHI( Include MCU) Because this MCU is more harder on operation , so we produce another TRW-24DSHI which include MCU. So We deal with MCU, this will be easy for customer on operation. What is the supply voltage range?
Available voltage is 3.6V~5.5V, 3.6V also can be used. I need long range and high speed, i chose 64 Chip 8DR (125kbit/s) as a compromise, so it would be good to have 115200bit/s or 128000bit/s for interface data rate, is it possible to modify module in that way? It would defiantly speed-up effective speed of RF link. When I send data via module I get those data back. How should I interpret those data? Is that data send back from transmitter or from receiver?
It’s very sorry for that what we use is IO virtual serial port and it has MCU speed limited, the highest power speed is 19200bits. When user send data to TRW-24DSHI transceiver module, it will simultaneously back the data to user, this is in order to verify the accuracy of that TRW-24DSHI transceiver module received data from user also avoid halfway RF signals disruption into serial port information How can I increase power of internal power amplifier?
If configuration directive BYTE3=7, this is already the biggest transmission power. If you need to increase the transmission power, it needs to change software. We intend to use one of these modules for a custom-built remote control. We need coverage at least 100m. in the open, strong robustness against interferences and small power consumption. Can you suggest modules to me?
Please consider our TRW-24DSHI. This is taking hopoing technology and nclude chip antenna so the distance can reach your need What is the real data speed via two modules? For example I need to send 1Mbits of data with 64Chip 8DR, what will be effective speed? How the module is switched among tx and rx? How CTS signal works? i check it on oscilloscope and it is quite obvious but please write a few words about it, especially because it is the only signal that control module transmit. Maybe you could add some time graphs to the datasheet? What happen if the module is getting data from another module while it is still transmitting data?
"When module received signal, CTS will automatically become low and stop serial port data. If serial port data still not received end, serial port will receive error. After signal received complete, CTS will automatically become high and user can received signal which module received. After serial port send completely, CTS will become low if there didn’t receive any data from serial port during two bytes timing and module will transfer the serial port data to wireless signal and send them out. After send completely, it will become high. " How can i extend range, rf power ?
You can add external antenna to increase the distance which you want, especially directional antenna. My distance requirement is 700~1000M, TRW-24DSHI can reach my requirement?
No, it can’t reach so long distance. How can i attache external antenna to module, again at first the modulke have external antenna connector, now it has biult in antenna with now very high gain?
We also provide modules which available to external antenna. My application is wireless communication Digital speech transmission through Bluetooth, TRW-24DSHI can use on my application?
TRW-24DSHI transceiver can? use on Bluetooth application. I have also a question about CE pin, i removed pull-up resistor as you said and try to turn module into sleep and it is not working. Module after attaching CE to GND is still working (it takes about 43mA).
Please change SMT 10R of resistor to 47K and attaching CE to GND, module current will be less 1uA. Please check attchment.
My distance requirement is 700~1000M, TRW-24DSHI can reach my requirement?
No, it can? reach so long distance. What about sleep mode, what are the timings? How much time the module needs for switching from sleep to rx or tx mode?
We didn? add Sleep Mode on TRW-24DSHI transceiver module. If you need to save electricity, please delete resistance from CE PIN on TRW-24DSHI, also control module power from user directly. When CE=0, module cute off power supply, timing from off power to RX or TX mode will be around 150ms. I need long range and high speed, i chose 64 Chip 8DR (125kbit/s) as a compromise, so it would be good to have 115200bit/s or 128000bit/s for interface data rate, is it possible to modify module in that way? It would defiantly speed-up effective speed of RF link. When I send data via module I get those data back. How should I interpret those data? Is that data send back from transmitter or from receiver?
It? very sorry for that what we use is IO virtual serial port and it has MCU speed limited, the highest power speed is 19200bits. When user send data to TRW-24DSHI transceiver module, it will simultaneously back the data to user, this is in order to verify the accuracy of that TRW-24DSHI transceiver module received data from user also avoid halfway RF signals disruption into serial port information What is the supply voltage range?
Available voltage is 3.6V~5.5V, 3.6V also can be used. How can i extend range, rf power
You can add external antenna to increase the distance which you want, especially directional antenna. How can I increase power of internal power amplifier?
If configuration directive BYTE3=7, this is already the biggest transmission power. If you need to increase the transmission power, it needs to change software. What is the real data speed via two modules? For example I need to send 1Mbits of data with 64Chip 8DR, what will be effective speed? How the module is switched among tx and rx? How CTS signal works? i check it on oscilloscope and it is quite obvious but please write a few words about it, especially because it is the only signal that control module transmit. Maybe you could add some time graphs to the datasheet? What happen if the module is getting data from another module while it is still transmitting data?
When module received signal, CTS will automatically become low and stop serial port data. If serial port data still not received end, serial port will receive error. After signal received complete, CTS will automatically become high and user can received signal which module received. After serial port send completely, CTS will become low if there didn? receive any data from serial port during two bytes timing and module will transfer the serial port data to wireless signal and send them out. After send completely, it will become high. How can i attache external antenna to module, again at first the modulke have external antenna connector, now it has biult in antenna with now very high gain?
We also provide modules which available to external antenna. We intend to use one of these modules for a custom-built remote control. We need coverage at least 100m. in the open, strong robustness against interferences and small power consumption. Can you suggest modules to me?
Please consider our TRW-24DSHI. This is taking hopoing technology and nclude chip antenna so the distance can reach your need I have three questions on your TRW-24DSHI 1. Its max. speed is 250bps, which may turn insufficient for our purposes 2. It draws too much power in transfer mode 3. Can you give us the timing diagram for this module - we`re interested in SLEEP - StandBy & StandBy - Tx/Rx times.
Provide you two solutions: TRW-24DSHI ( no MCU inside) 1. 250Kbps: this needs you to write program for controlling on MCU of your main board. 2. Much output power: this needs you to write program for controlling on MCU of your main board. 3. This type already has SLEEP - StandBy & StandBy - Tx/Rx times function. TRW-24DSHI( Include MCU) Because this MCU is more harder on operation , so we produce another TRW-24DSHI which include MCU. So We deal with MCU, this will be easy for customer on operation.

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