ECE 310 Formal Lab

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ECE 310: DIGITAL IR COMMUNCATIONS PROJECT

By Ray Anderson and Adam Sn!er

ROSE-HULMAN INSTITUTE OF TECHNOLOGY


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SUMMARY

In"rared #omm$n#a%ons s a &ne'o"'s!(% #omm$n#a%on #(anne& %(a% s $sed n (ome se#$r%y

sys%ems) %e&e*son remo%e #on%ro&s) ro+o%# ma!e de%e#%on) a$%oma%# $rna&s) a$%oma%# ,a,er

%o-e& ds,ensers) and modems. T(e ,$r,ose o" %(s ,ro/e#% &a+s 1'2 -as %o #rea%e an n"rared

d!%a& #omm$n#a%on sys%em $sn! an n"rared o,%#a& #(anne&.To #rea%e %(s sys%em) -e +roe

o$r ,ro/e#% do-n n%o se*era& se#%ons. 4e -ored on %(e %ransm%%er and %(e re#e*er

#om,onen%s o" %(e #omm$n#a%on #(anne& n #on/$n#%on. T(e n,$% %o %(s #omm$n#a%on

sys%em s a ,se$dorandom !enera%ed se5$en#e %(a% ser*es %o mode& a random #omm$n#a%on

s!na&. T(e #omm$n#a%on sys%em o,era%ed on a da%a +% #&o# o" 100 67 and %(e #arrer s!na&

"re5$en#y o" 80 967. T(ro$!(o$% -ees) -e #om,rsed o$r en%re IR #omm$n#a%on sys%em.

Be&o- s a +re" &s% o" a&& o" o$r &a+ ,ro/e#%s:

1. La+ 1: In%er"a#n! %o n"rared Transd$#ersa. Crea%e %ransm,edan#e am,&"er "or ,(o%o'%ranss%or (Transmitter)+. Date Completed: 030;


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n%rod$#%on) B.2 T(e Cr#$% Do#$men%a%on) C.2 T(e Meas$remen%s) 8.2 T(e Ds#$sson and .2

Con#&$son. T(e circuit documentationse#%on -&& &&$s%ra%e o$r "na& sys%em #r#$%ry as -e&& as

s(o- *aro$s IC ,a#a!e des!ns. T(e measurementsse#%on o" o$r re,or% -&& n#&$de a

#om,&e%e se% o" -a*e"orm #a,%$res %(a% &&$s%ra%e %(e e&e#%r#a& +e(a*or or o$r sys%em. T(e

discussionse#%on s -(ere a&& o" %(e "!$res ,ro*ded n %(e meas$remen%s se#%on -&& +e

e&$#da%ed. >na&&y) o$r conclusion-&& syn%(es7e o$r en%re re,or%. T(e res$&% o" %(s ,ro/e#% -as%(a% -e -ere a+&e %o s$##ess"$&&y #rea%e o$r d!%a& IR #omm$n#a%on sys%em %(ro$!( s$+s%an%a&

e""or% and %(e #on%n$ed asss%an#e and +r&&an#e o" Dr. Mar @oder.

CIRCUIT DOCUMENTATION

Here is a list of all of the all of the ICs that were used in this project

Figure 1 TL0;< o,era%ona& Am,&"er

Figure ED


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Figure 5- SN;8LS;8A' D"&, D>&o,s Figure 6-LM;0' o&%a!e Re!$&a%or

Figure 7- LM' Tmer Figure 8-


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Figure 9- PIC1=>=0

Figure 10- LM311' Com,ara%or

Here is a list of figure of all of the circuits that were built in this project.

Figure 11- Transm%%er $sed %o send da%a %o %(e re#e*er.


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Figure 12- Band,ass >&%er. T(s -as $sed %o "&%er %(e re#e*ed s!na&.

Figure 13- En*e&o,e de%e#%or. T(s #r#$% s $sed %o !enera%e a s$%a+&e %(res(o&d and ,ea

o$%&ne "or %(e "&%ered re#e*ed s!na&.


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Figure 14- D >&, >&o,. T(s s $sed %o

sam,&e %(e #om,ara%or s!na& Figure 15- o&%a!e re!$&a%or "or o$r sys%em

.

Figure 15- T(s s a %o%a& +&o# da!ram o" o$r sys%em.

Here is a list of figures all of the circuits that were design on our bread board.


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Figure 16- Re#e*er S#(ema%#. T(s s %(e "na& #r#$% %(a% -as +$&%.


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Figure 17- Transm%%er. T(s s %(e "na& #r#$% %(a% -as +$&%.

Here is the code that was utilized for timing recovery and PS.


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Figure 18- Tmn! Re#o*ery Code.

Figure 19- PSG. T(s s %(e PSG #ode "or %(e sys%em.

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ECE 310 Formal Lab