Tag-to-reader communication timings

XRAG2

22/33

7

Tag-to-reader communication timings

The tag complies with the reader-to-tag and tag-to-reader link timing requirements of the

EPCglobal Class 1 generation 2 RFID UHF specification, revision 1.0.9.

Table 8.

1.

Characterized only.

Divide ratio DR

TRcal (µs ±1%)

Link frequency LF (kHz)

64/3

33.3

640

33.3 < TRcal < 66.7

320 < LF < 640

66.7

320

66.7 < TRcal < 83.3

256 < LF < 320

83.3

256

83.3 < TRcal

≤133.3

160

≤LF < 256

133.3 < TRcal

≤200

107

≤LF < 160

200 < TRcal

≤225

95

≤LF < 107

8

17.2

≤TRcal < 25

320 < LF

≤465

25

320

25 < TRcal < 31.25

256 < LF < 320

31.25

256

31.25 < TRcal < 50

160< LF < 256

50

160

50 < TRcal

≤75

107

≤LF < 160

75 < TRcal

≤200

40

≤LF < 160

Table 9.

1.

Characterized only.

Number of subcarrier cycles

per symbol (M)

Modulation type

Data rate (kbps)

1

FM0 baseband

LF

2

Miller subcarrier

LF/2

4

Miller subcarrier

LF/4

8

Miller subcarrier

LF/8