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Preliminary

DS41115D-page 11

HCS101

TABLE 7-3:

CODE WORD TRANSMISSION TIMING REQUIREMENTS

C to +70C

C to +85C

Code Words Transmitted

All

1 out of 2

Symbol

Characteristic

Min.

Typ.

Max.

Min.

Typ.

Max.

Units

Basic pulse element

1

360

400

440

180

200

220

µs

PWM bit pulse width

3

—

3

—

—

3

—

ms

Preamble duration

24

8.64

9.6

10.56

4.32

4.8

5.28

ms

Header duration

10

3.6

4.0

4.4

1.8

2.0

2.2

ms

Hopping code duration

96

34.56

38.4

42.24

17.28

19.2

21.12

ms

Fixed code duration

102

36.72

40.8

44.88

18.36

20.4

22.44

ms

Guard Time

39

14.04

15.6

17.16

7.02

7.8

8.58

ms



Total Transmit Time

271

97.56

108.4

119.24

48.78

54.2

59.62

ms



PWM data rate



925

833

757

1851

1667

1515

bps

Note:

The timing parameters are not tested but derived from the oscillator clock.