Gec Plessey Semiconductors SL486 NA DP Manual

IN FRA RED REM O TE C O N TRO L P REAM P L IFIER
The SL486 is a high gain preamplifier designed to form an
interfac e b etw een an infra-red rec eiv ing diode and the digital inpu t
of remote c ontrol rec eiv ing c irc u its. The dev ic e c ontains tw o other
c irc u it elements, one to prov ide a stretc hed ou tpu t pu lse fac ility
and a v oltage regu lator to allow operation from a w ide range of
su pplies.
FEATURES
F ast A c ting A G C Improv es O peration In N oisy
E nv ironments
D ifferential Inpu ts R edu c e N oise P ic k -u p and Improv e
Stab ility
G y rator Circ u it A llow s O peration in E nv ironments w ith
H igh B rightness B ac k grou nd Light Lev els
O u tpu t P u lse Stretc her for u se w ith M ic roproc essor
D ec oders
O n-c hip R egu lator allow s O peration from W ide R ange
of P ow er Su pplies
Low N oise O u tpu t
O RD ERIN G IN FO RM ATIO N
SL 4 8 6 N A D P
SL 4 8 6 N A M P
1
DIODE
CATHODE
DIF F ER EN TIAL
16
DIODE IN P U T S TAG E
AN ODE
(Supersedes version in April 1994 Consumer IC Handbook, HB3120 - 2.0)
G Y R ATOR
V C1 C2
CCI
4 3
G Y R ATOR
B U F F ER
5·4k
14 15
V 1S T S TAG E
EEI
DECOU P L E
F ig. 2 SL486 b loc k diagram
SL 4 8 6
2N D S TAG E DECOU P L E
4TH S TAG E DECOU P L E
OU TP U T V
AB SO L UTE M AX IM UM RATIN G S
Su pply v oltage, V
Su pply v oltage, V
R egu lator inpu t v oltage, V
O u tpu t c u rrent
Stretc h ou tpu t c u rrent
O perating temperatu re range
Storage temperatu re
2N D S TAG E
DECOU P L E
2 5
2·4k
8
AG C V
DECOU P L E
DIODE CATHODE 1
G Y R ATOR C2 2
3
G Y R ATOR C1
4
IN P U T V (V )
CC CCI
S L 48 6
5
6
7
(V )
CC CCO
AG C DECOU P L E 8
F ig. 1 P in c onnec tions - top v iew
CCI
CCO
R E G IN
4TH S TAG E
DECOU P L E
6
15k
AG C P EAK
DETECTOR
V
R EG
13
EEO
*
W hen regu lator is u sed
(see A pplic ation N otes).
3 05 5 -2 .2
16
DIODE AN ODE
15
1S T S TAG E DECOU P L E
14
IN P U T V (V )
EE EEI
13
OU TP U T V (V )
EE EEO
12
R EG U L ATOR IN P U T (V
R EG IN
11 S TR ETCH OU TP U T
10
S TR ETCH IN P U T
9
OU TP U T
D P 1 6
M P 1 6
11 0V w rt V
11 0V w rt V
22 0V w rt V
5 mA
5 mA
0°C to 17 0°C
25 5 °C to11 5 0°C
V
CCO
7
S TR ETCH
11
OU TP U T
P U L S E
S TR ETCH
10
S TR ETCH
IN P U T
9
OU TP U T
R EG U L ATOR
*
12
R EG U L ATOR
IN P U T
(V )
R EG IN
)
E E I
E E O
CCO