UPD6121 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD6121

REMOTE CONTROL TRANSMISSION CMOS IC

NEC => Renesas Technology 

µPD6121, 6122

Figure 7-1. Continuous Command Transmission Mode (When fOSC = 455 kHz)

(1) µPD6120C, 6121G, 6122G

REM output

58.5 to 76.5 ms

31.5 to 49.5 ms

108 ms

Average transmission

current ratio

ITYP = 8.48 % x Ipeak (LED)

LMP output

(2) µPD1913C, 1943G, 6102G

1 K1 to K20, K33 to K52 (KO0 to KO4)

REM output

LMP output

67.5 ms

105.5 msNote

38 ms

Average transmission

current ratio

ITYP = 8.68 % x Ipeak (LED)

2 K21 to K32, K53 to K64 (KO5 to KO7)

REM output

LMP output

67.5 ms

20 ms

87.5 msNote

Average transmission

current ratio

ITYP = 10.47 % x Ipeak (LED)

Note In the case of the µPD1913C, 1943G and 6102G, the transmission repeat cycle (T) varies depending

on the key.

Remark ITYP = IAVE x Ipeak (LED)

IAVE = (9 ms + 0.56 ms x 33)/T ms x 1/3 (duty)

15

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