ASK IR RECEIVE
DATA
0
1
0
1
0
0
1
1
0
1
1
t1
t2
IRRX
n IRRX
t3
t5
t4
MIRRX
t6
nM IRRX
Parameter
min
typ
max
units
t1
t2
t3
t4
t5
t6
M odu lated Out put Bit Time
Off Bit Time
µ s
µ s
µ s
µ s
µ s
µ s
M odu lated Outp ut " On"
M odu lated Out put " Off"
M odu lated Outp ut " On"
M odu lated Out put " Off"
0.8
0.8
0.8
0.8
1
1
1
1
1.2
1.2
1.2
1.2
Notes:
1 . IRRX: L 5, CRF1 Bit 0 = 1
n IRRX: L5 , CRF1 Bit 0 = 0 (de fault)
MIRRX, nMI RRX are the mod ulate d ou tputs
FIGURE 33 - AMPLITUDE SHIFT KEYED IR RECEIVE TIMING
235