DATA
0
1
0
1
0
t1
t2
IRTX
n IRTX
MIRTX
nMIRTX
t3 t4
t5 t6
0
1
1
0
1
1
Parameter
t1 Modulated Output Bit Time
t2 Off Bit Time
t3 Modulated Output "On"
t4 Modulated Output "Off"
t5 Modulated Output "On"
t6 Modulated Output "Off"
min
typ
max
units
0.8
1
0.8
1
0.8
1
0.8
1
µs
µs
1.2
µs
1.2
µs
1.2
µs
1.2
µs
Notes:
1. IRTX: L5, CRF1 Bit 1: 1 = XMIT active low (default)
nIRTX: L5, CRF1 Bit 1: 0 = XMIT active high
MIRTX, nMIRTX are the modulated outputs
FIGURE 22 - AMPLITUDE SHIFT KEYED IR TRANSMIT TIMING
178