NXP Semiconductors
FXTH87E
FXTH87E, Family of Tire Pressure Monitor Sensors
low
bit
high
bit
FSK = f
+
-
f
f
OOK = f
RF
RF
FSK = f
OOK = OFF
RF
bit time
bit time
Consecutive “0
data bits
Consecutive “1
data bits
“001101
data bits
aaa-028036
Figure 43.ꢀManchester data bit encoding (POL = 1)
ꢁ
low
bit
low
bit
high
bit
high
bit
FSK = f
+
-
f
f
OOK = f
RF
RF
FSK = f
OOK = OFF
RF
bit time
bit time
bit time
bit time
Consecutive “0
data bits
Consecutive “1
data bits
“001101
data bits
aaa-028037
Figure 44.ꢀBi-Phase data bit encoding (POL = 0)
ꢁ
FXTH87ERM
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Reference manual
Rev. 5.0 — 4 February 2019
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