FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

ASK IR Transmit

DATA

0

1

0

1

0

IRTX

n IRTX

t1

t2

MIRTX

nMIRTX

t3 t4

t5 t6

0

1

1

0

1

1

Parameter

min

t1

Modulated Output Bit Time

t2

Off Bit Time

t3

Modulated Output "On"

0.8

t4

Modulated Output "Off"

0.8

t5

Modulated Output "On"

0.8

t6

Modulated Output "Off"

0.8

Notes:

1. IRTX: L5, CRF1 Bit 1 = 1 (default)

nIRTX: L5, CRF1 Bit 1 = 0

MIRTX, nMIRTX are the modulated outputs

typ

max

units

µs

µs

1

1.2

µs

1

1.2

µs

1

1.2

µs

1

1.2

µs

FIGURE 33 - ASK IR TRANSMIT TIMING

257

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