...........continued
Modulation
Chip Rate
[kchip/s]
Supported Data Rate for
PPDU Header [kb/s]
Supported Data Rates for PSDU
[kb/s]
Pulse Shaping
O-QPSK
400
100
100, 200, 400
SIN and RC-0.2
400
100
100, 200, 400
RC-0.2
1000
250
250, 500
(1)
, 1000
SIN
1000
250
250, 500
(1)
, 1000
RC-0.8
1.
Support of two different spreading codes.
7.1.2
Recommended PHY Modulation Modes for Different Frequency Bands
The following are the recommended PHY modes for North American band:
• BPSK-40
• BPSK-40-ALT
• OQPSK-SIN-250/500/1000
The following are the recommended PHY modes for European band:
• BPSK-20
• OQPSK-SIN-RC-100/200/400
• OQPSK-RC-100/200/400
7.1.3
Configuration
The PHY mode can be selected by setting the appropriate BPSK_OQPSK, SUB_MODE, OQPSK_DATA_RATE and
ALT_SPECTRUM bits in the TRX_CTRL_2. During configuration, the transceiver needs to be in TRX_OFF state.
7.1.4
Symbol Period
Within IEEE 802.15.4 and, accordingly, within this document, time references are often specified in units of symbol
periods, leading to a PHY mode independent description. The table below shows the duration of the symbol period.
Table 7-2. Duration of the Symbol Period
Modulation
PSDU Data Rate [kb/s]
Duration of Symbol Period [µs]
BPSK
20
50
40
25
O-QPSK
100, 200, 400
40
250, 500, 1000
16
1.
For the proprietary High Data Rate Modes, the symbol period is (by definition) the same as the symbol period
of the corresponding base mode.
7.1.5
Proprietary High Data Rate Modes
The main features are:
• High data rates up to 1000 kb/s
• Support of Basic and Extended Operating Mode
• Reduced ACK timing (optional)
7.1.5.1
Overview
The AT86RF212B supports alternative data rates of 200, 400, 500 and 1000 kb/s for applications not necessarily
targeting IEEE 802.15.4 compliant networks.
ATSAMR30M18A
Module Description
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2018-2021 Microchip Technology Inc.
and its subsidiaries
Datasheet
DS70005384B-page 18