ML145026, ML145027, ML145028
LANSDALE Semiconductor, Inc.
SEND
MC 14011UB
SELECT FOR
200 mA TO 300 mA
MLED81
USE OF 2 MLED81s
IS OPTIONAL
10 kΩ
MPSA13
OR
MPSW13
TE
Dout
ML 145026
RS
CTC
RTC
9
1000 pF
MC 14011UB
220 kΩ
SWITCHES
220 kΩ
100 kΩ FOR APPROX. 4 kHz
47 kΩ FOR APPROX. 9 kHz
0.01 µF
ADJUST/SELECT FOR
f = 50 kHz (APPROX. 100 kΩ)
F igure 18. IR E D Trans mitter Us ing R C Os c illator to G enerate C arrier F requenc y
V+
1MΩ
X1
MC 14011UB
MC 14024
CLK
Q3
RESET
50 kHZ TO
DRIVER
TRANSISTOR
X1 = 400 kHz CERAMIC RESONATOR
PANASONIC EFD–A400K04B
OR EQUIVALENT
V+
MC 14011UB
470 pF
470 pF
Dout
FROM ML145026
F igure 19. Us ing a C eramic R es onator to G enerate C arrier F requenc y
Page 16 of 19
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