 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
RFD21733 Datasheet(PDF) 8 Page - List of Unclassifed Manufacturers |
|
||||||||||||||||||||||||||||||
RFD21733 Datasheet(HTML) 8 Page - List of Unclassifed Manufacturers |
|
|
8 / 76 page  13715 Alton Pkwy • Irvine • CA • 92618 Tel: 949.610.0008 • www.RFdigital.com Fast Answers: support@rfdigital.com Free Applications Support • Email your application questions to support@rfdigital.com 8 RFDP8 © Copyright, RF Digital 7/10/2011 1:40 AM Patents Pending RoHS CE • ESTI RFD21733 • FCC • IC RFD21743 • FCC Approved & Certified RF Module RFD21733 RFD21735 RFD21737 RFD21738 RFD21739 RFDP8 RFDANT RFD21742 RFD21743 RFD21772 RFD21773 KEYFOBs The RFD21742 and RFD21743 are 100% identical hardware, the only difference between the two is firmware loaded at the RF Digital factory. The RFD21742 is in compliance with CE / ETSI emission requirements and is not for FCC. The RFD21743 is in compliance with CE / ETSI emission requirements and is FCC Certified and Approved. The high performance of the RFDANT for FCC requires it to work in a 50% duty cycle mode, which means that when you are running it in its 9600-8N1 UART mode, you can send up to 24 bytes in a row and then you must wait a minimum of 24 byte lengths which is about 24mS before you send up to another 24 bytes. For example you can also send 12 bytes, wait 12mS and then send 12 bytes again, effectively yielding a 50% duty cycle. Note this is only a transmit limitation with the RFDANT, it is not related to receive, so if you have a RFD21733 sending 100% duty cycle at full speed, you can receive that with either RFDANT and it will be fine. But when you go to transmit, if you are using the RFD21743 you will need to use a maximum of a 50% duty cycle for the USA and FCC. However when using the RFD21742 which is for Europe and the CE / ETSI markets, there is no duty cycle limitation. That is the reason there are two part numbers for the RFDANT, the RFD21743 is 50% UART duty cycle for FCC and the RFD21742 is CE and ETSI with 100% duty cycle. So if you plan on selling into the USA market place, then use the RFD21743, if you are Europe ONLY, then you can use the RFD21742. Also, of course you can use the RFD21743 for USA and Europe. If you are sending in switch mode using the RFD21742, it will send a new packet every 16mS and the hang time for a switch receiver in mode 6 or 7 is 50mS. Where with the RFD21743 it will send a new packet every 24mS to work within the 50% duty cycle limit for FCC and IC. If you require Canada (IC) Approval for the RFD21743, please contact sales@rfdigital.com. The impact with switch mode is hardly even noticed between the RFD21743 and RFD21742. Most common applications are typically with burst data less then 24 bytes per burst, so the difference between the RFD21743 and RFD21742 is negligible, nevertheless the choice is still available for you and they are pin for pin compatible. Once you test an RFDANT, you will be truly amazed with its performance. Differences between RFD21742 and RFD21743 RFDANTs Plugs into your PCB using its 8 inch long cable. RFD21742 RFDANT Plugs into your PCB using its 8 inch long cable. RFD21743 RFDANT CE • ETSI FCC CE • ETSI |
Similar Part No. - RFD21733 |
|
Similar Description - RFD21733 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
