Rosen Entertainment Systems LLC
8/30/2005
Rosen FMT. Part # 9100458
Rosen Entertainment Systems
Wireless FM Transmitter
Part# 9100458
User Guide
Page 1: ...Rosen Entertainment Systems LLC 8 30 2005 Rosen FMT Part 9100458 Rosen Entertainment Systems Wireless FM Transmitter Part 9100458 User Guide...
Page 2: ...2 General Description 3 Architectural Overview 3 Block Diagram 4 Operating Guide 5 Interface board wiring diagram 5 Interface Pinout Definition 6 Design considerations 6 Appendix 1 Frequency Table 7...
Page 3: ...l selection of the FM transmitter The interface to the counter is accomplished by way of a 3 wire communication bus consisting of CLOCK CLEAR and GROUND lines A 5V pulse on the CLOCK line will step to...
Page 4: ...2005 Rosen FMT Part 9100458 Block Diagram The block diagram below shows the main components of the FMT module and how they are interconnected Stereo TDM Pre Scalar Pre Scalar Divide Ratio BH1417F AMP...
Page 5: ...ve and black should connect to Gnd Connect a stereo audio source with a maximum 1V RMS signal to Audio_R and Audio_L connectors Tune your radio receiver to 88 1Mhz Audio should be heard To step to th...
Page 6: ...ence 7 SEL2_A Counter clock sets the output of the counter 8 SEL1_A Counter Clear resets the counter to 0 9 ANT Not Used for test purpose only Design considerations The module is intended to interface...
Page 7: ...shows the value of the 74HC161 counter as well as the corresponding FM transmission frequency 2 88 1 MHz 3 88 3 MHz 4 88 5 MHz 5 88 7 MHz 6 88 9 MHz 7 no setting 7 is a meaningless value 8 106 7 MHz...
Page 8: ...status of the FMT Example Code I O Name Function SEL1_A Clear SEL2_B Clock FMTLOAD Load reset INITIALIZATION PROCESS Initialization I O SEL1_A 1 SEL2_A 1 FMTLOAD 1 Reset Counters SEL1_A 0 delay 2 mic...
Page 9: ...ems LLC 8 30 2005 Rosen FMT Part 9100458 do the following for each increment of the station example the following 3 lines should be done 3 times to set 88 3 SEL2_A 0 delay 2 microseconds SEL2_A 1 stor...
Page 10: ...1 2 R22 10K 1 2 R6 4 7K 1 2 SEL1_A R23 10K 1 2 C12 1uF 10V 1 2 5V 5VA ANT 5V R20 10K 1 2 C23 0022uF 1 2 C36 0 01uF 1 2 Q3 2SD2142K 1 2 3 C27 27pF 1 2 C21 1000pF 1 2 C31 1000pF 1 2 LA D5 KV 1471E 1 2 D...
Page 11: ...LC 8 30 2005 Rosen FMT Part 9100458 Appendix 4 Specifications Operation power supply voltage 4 8 5 2 V DC Transmission Frequency 88 1 88 9Mhz 106 7 107 9 Mhz Step 200Khz Operating Temperature 0 60 C D...
