FDC37N769_07 SMSC [SMSC Corporation], FDC37N769_07 Datasheet - Page 125

• Manufacturer Part Number: FDC37N769_07
• Description: 3.3V Super I/O Controller with Infrared Support for Portable Applications
• Manufacturer: SMSC [SMSC Corporation]

SMSC DS – FDC37N769
MIRTX
nMIRTX
DATA
IRTX
nIRTX
Notes:
1. IRTX: CRC Bit 1: 1 = XMIT active low (default)
t1
t2
t3
t4
t5
t6
nIRTX: CRC Bit 1: 0 = XMIT active high
MIRTX, nMIRTX are the modulated outputs
Modulated Output Bit Time
Off Bit Time
Modulated Output "On"
Modulated Output "Off"
Modulated Output "On"
Modulated Output "On"
0
t1
t3
t5
FIGURE 13 - AMPLITUDE SHIFT KEYED IR TRANSMIT TIMING
t4
t6
1
t2
Parameter
0
DATASHEET
1
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0
0
min
0.8
0.8
0.8
0.8
1
typ
1
1
1
1
1
max
1.2
1.2
1.2
1.2
0
units
1
µs
µs
µs
µs
µs
µs
1
Rev. 02-16-07