Datasheet

030-118
Pulseduration
90%
50%
10%
t
f
90%
50%
10%
t
r
AM3517, AM3505
SPRS550E –OCTOBER 2009–REVISED MARCH 2013 www.ti.com
Figure 6-56. UART IrDA Pulse Parameters
6.6.9.1.1 IrDA—Receive Mode
Table 6-119. UART IrDA—Signaling Rate and Pulse Duration—Receive Mode
ELECTRICAL PULSE DURATION
SIGNALING RATE UNIT
MIN NOMINAL MAX
SIR
2.4 Kbit/s 1.41 78.1 88.55 μs
9.6 Kbit/s 1.41 19.5 22.13 μs
19.2 Kbit/s 1.41 9.75 11.07 μs
38.4 Kbit/s 1.41 4.87 5.96 μs
57.6 Kbit/s 1.41 3.25 4.34 μs
115.2 Kbit/s 1.41 1.62 2.23 μs
MIR
0.576 Mbit/s 297.2 416 518.8 ns
1.152 Mbit/s 149.6 208 258.4 ns
FIR
4.0 Mbit/s (Single pulse) 67 125 164 ns
4.0 Mbit/s (Double pulse) 190 250 289 ns
Table 6-120. UART IrDA—Rise and Fall Time—Receive
Mode
PARAMETER MAX UNIT
t
R
Rising time, 200 ns
uart3_rx_irrx
t
F
Falling time, 200 ns
uart3_rx_irrx
190 Timing Requirements and Switching Characteristics Copyright © 2009–2013, Texas Instruments Incorporated
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