AT86RF211SAHW Atmel, AT86RF211SAHW Datasheet - Page 29

• Manufacturer Part Number: AT86RF211SAHW
• Manufacturer: Atmel

Specifications of AT86RF211SAHW

• Lead Free Status / Rohs Status: Compliant

4.4.3
4.4.4
e2v semiconductors SAS 2008
Data Tolerance Programming
Recommended Values
Table 4-9
Table 4-9.
You can select DATATOL. This parameter decides upon:
Table 4-10.
Note:
DATATOL[7:0]
(4)
(8)
(vv)
(41)
(43)
(85)
(171)
(410)
DATATOL
2%
4% - recommended
8%
• The stability of the clock and its jitter
• The number of bits that are required to synchronize the data
10
10
10
10
10
10
10
10
The clock’s “settling time” depends on the random first occurrence of the clock edge compared to the data
edge. This means that in most cases, the number of bits required to obtain synchronization will be far
smaller.
provides some examples of tolerance values with tolerance = 4% × DATARATE.
Tolerance Values with Tolerance Equal to 4% × Data Rate
Clock Recovery Recommended Settings
Maximum Number of Preamble
Bytes for Sync
4 bytes of $55
2 bytes of $55
1 byte of $55
Rate
100 kbps
50 kbps
10 kbps
9.6 kbps
4.8 kbps
2.4 kbps
1 kbps
(Note:)
From…
The duty cycle time of
the demodulated
preamble is better than
25 to 75%
Period
1 bit ~ 4 x T
1 bit ~ 8 x T
1 bit ~ vv x T
1 bit ~ 41 x T
1 bit ~ 43 x T
1 bit ~ 85 x T
1 bit ~ 171 x T
1 bit ~ 410 x T
To…
The clock is settled at
the center of the bit with
an accuracy of ±10%
0894C–WIRE–11/08
AT86RF211S
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