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OG_LMD-400-R-AB_v11e                                                                                                      Circuit Design, Inc.

 

17 

OPERATION GUIDE 

Regulatory compliance information 

    

Regulatory compliance of the LMD-400-R  

T

he  LMD-400-R  is  designed  for  embedding  in  other  equipment  (Products  incorporating  the  LMD-400-R  are 

henceforward referred to as final products).  
The  European  regulation  applicable  to  the  LMD-400-R  is  the  R&TTE  Directive  1999/5/EC.  The  conformity 
assessment for the LMD-400-R was completed in accordance with the R&TTE Directive Annex III procedures, and 
the Declaration of Conformity is attached to this manual.  

 

Note:  The  LMD-400-R  is  intended  for  use  in  hand-portable/mobile  stations  under  Private  Mobile  Radio  (PMR) 
service.  PMR  systems  are  usually  operated  under  license  and  subject  to  National  frequency  management  plans. 
For details of the national frequency plan, please consult the relevant authorities.  
 
  

Cautions related to regulatory compliance when embedding the LMD-400-R  

1. Antenna 

The  LMD-400-R  is  supplied  without  a  dedicated  antenna  and  the  user  is  required  to  provide  an  antenna.  The 
conformity assessment of the LMD-400-R was performed using Circuit Design’s standard antenna ANT-LEA-01 
(1/4  lambda  lead  antenna),  so  we  recommend  using  the  ANT-LEA-01  antenna  or  an  antenna  with  equivalent 
characteristics and performance. For details about our standard antenna, refer to 

www.circuitdesign.jp

 or contact 

us. If you use an antenna other than the recommended antenna, further radio conformity assessment may be 
required. 

2. Supply voltage 

The LMD-400-R should be used within the specified voltage range (3.0 V to 5.5 V). 

3. Enclosure 

To  fulfill  the  requirements  of  EMC  and  safety  requirements,  the  LMD-400-R  should  be  mounted  on  the  circuit 
boards of the final products and must be enclosed in the cases of the final products. No surface of the LMD-400-
R should be exposed. 

 

Conformity assessment of the final product  

The manufacturer of the final product is responsible for the conformity assessment procedures of the final product 
in accordance with the R&TTE Directive. 
As  to  the  conformity  assessment  of  the  R&TTE  Directive  Article  3.2  (Efficient  use  of  the  radio  spectrum),  the 
manufacturer  of  the  final  product  incorporating  the  R&TTE  assessed  LMD-400-R  will  be  exempted  from  its 
conformity assessment procedures. For details of how to use the conformity assessment of the LMD-400-R, please 
consult the relevant authorities or accredited certification bodies. 

 

Notification of the final product

 

The  notification  required  by  R&TTE  Directive  Article  6  (4)  is  not  necessary  if  the  final  product  is  used  in  the 
harmonized  frequency  band  and  is  classified  as  Class-1  equipment.  If  the  final  product  is  not  used  in  the 
harmonized frequency band and is classified as Class-2 equipment, the manufacturer of the final product has a duty 
to notify the relevant radio regulatory authorities in the countries where the final product is sold. 
*NOTE:  A list of Class-1 equipment is available at http://www.ero.dk/. 
 

Exemption clause 

Circuit Design, Inc does not guarantee the accuracy of the above mentioned information about the conformity 
assessment and notification of the final product. Directives, technical standards, principles of operation and the like 
may be interpreted differently by the authorities in each country. Also the national laws and restrictions vary with the 
country. In case of doubt or uncertainty, we recommend that you check with the authorities or official certification 
organizations of the relevant countries. 
 
 
 
 
 
 
 
 
 
 

Содержание LMD-400-R

Страница 1: ...multi channel transceiver LMD 400 R 438 442 458 462 MHz Operation Guide Version 1 1 Sep 2011 CIRCUIT DESIGN INC 7557 1 Hotaka Azumino Nagano 399 8303 JAPAN Tel 81 0 263 82 1024 Fax 81 0 263 82 1016 e...

Страница 2: ...PIN DESCRIPTION 6 BLOCK DIAGRAM 8 DIMENSIONS 9 PLL IC CONTROL 10 PLL IC control 10 How to calculate the setting values for the PLL register 11 Method of serial data input to the PLL 12 TIMING CHART 1...

Страница 3: ...high frequency stability in the temperature range from 20 to 60 C The LMD 400 R is the same size and pin compatible with Circuit Design s EN 300220 compliant license exempt transceiver model STD 302N...

Страница 4: ...Item MIN TYP MAX Remarks Oscillation type PLL controlled VCO Frequency stability 20 to 60 C ppm 2 5 2 5 Reference frequency at 25 C TX RX switching time ms 15 20 DI DO Channel step kHz 12 5 Data rate...

Страница 5: ...e DO is established may get longer due to the possible frequency drift caused by operation environment changes especially when switching from TX to RX from RX to TX and changing channels Please make s...

Страница 6: ...D and RXSEL to OPEN or 2 8 V RXSEL I RX select terminal GND RXSEL active To enable the receiver circuits connect RXSEL to GND and TXSEL to OPEN or 2 8 V AF O Analogue output terminal There is DC offse...

Страница 7: ...erminal Lock H 2 8 V Unlock L 0 V RSSI O Received Signal Strength Indicator terminal DO O Data output terminal Interface voltage H 2 8V L 0V DI I Data input terminal Interface voltage H 2 8V to Vcc L...

Страница 8: ...OPERATION GUIDE OG_LMD 400 R AB_v11e Circuit Design Inc 8 BLOCK DIAGRAM LMD 400 R 438 442 MHz 458 462 MHz...

Страница 9: ...OPERATION GUIDE OG_LMD 400 R AB_v11e Circuit Design Inc 9 DIMENSIONS...

Страница 10: ...e frequency These signal lines are connected directly to the PLL IC through a 2 k resistor The interface voltage of LMD 400 R is 2 8 V so the control voltage must be the same LMD 400 R comes equipped...

Страница 11: ...note fcomp fosc R Also this PLL IC operates with the following R N A and M relational expressions R fosc fcomp Equation 5 N INT n M Equation 6 A n M x N Equation 7 INT integer portion of a division As...

Страница 12: ...t this phase The PLL IC which operates as shown in the block diagram in the manual shifts the data to the 19 bit shift register and then transfers it to the respective latch counter register by judgin...

Страница 13: ...ssion occurs If the module is switched to the receive mode when operating in the same channel a new PLL setting is not necessary it can receive data within 5 ms of switching 1 For data transmission if...

Страница 14: ...nged 5 ms 4 40 ms CPU Power on CH Data 5 5 ms 5 ms Check LD signal Check LD signal Normal status Status immediately after pow er comes on Channel change No channel change 4 2 Initialize the port conne...

Страница 15: ...875 34919 545 39 458 2000 436 5000 436 5000 34920 545 40 458 2125 436 5125 436 5125 34921 545 41 458 2250 436 5250 436 5250 34922 545 42 458 2375 436 5375 436 5375 34923 545 43 458 2500 436 5500 436 5...

Страница 16: ...34942 545 62 458 4875 436 7875 436 7875 34943 545 63 458 5000 436 8000 436 8000 34944 546 0 458 5125 436 8125 436 8125 34945 546 1 458 5250 436 8250 436 8250 34946 546 2 458 5375 436 8375 436 8375 349...

Страница 17: ...s the LMD 400 R should be mounted on the circuit boards of the final products and must be enclosed in the cases of the final products No surface of the LMD 400 R should be exposed Conformity assessmen...

Страница 18: ...OG_LMD 400 R AB_v11e Circuit Design Inc 18 OPERATION GUIDE Regulatory compliance information...

Страница 19: ...ipment connected to the radio module Communication performance will be affected by the surrounding environment so communication tests should be carried out before actual use Ensure that the power supp...

Страница 20: ..._LMD 400 R AB_v11e Circuit Design Inc 20 OPERATION GUIDE REVISION HISTORY Version Date Description Remark 0 9 Jan 2010 Preliminary 1 0 May 2010 DOC added specification reviewed 1 1 Sept 2011 DOC updat...

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