9.3.1 General RF Specifications

The following table provides the ATSAMR30M18A general RF specifications.

Test Conditions (unless otherwise stated):

VDD = 3.3V, fRF = 914 MHz, TOP = +25°C

Table 9-3. General RF Specifications
Symbol Parameter Condition Min. Typ. Max. Unit
fRF Frequency range As specified in [1] 868.3 914 924 MHz
1 MHz spacing 769 — 935 MHz
100 kHz spacing 857.0 — 882.5 MHz
100 kHz spacing 902.0 — 928.5 MHz
fCH Channel spacing

As specified in [1]

except CHANNEL = 0

 — 2 — MHz
1 MHz spacing — 1000 — kHz
100 kHz spacing — 100 — kHz
fCHIP Chip rate BPSK as specified in [1](1) — 300 — kchip/s
BPSK as specified in [1](2) — 600 — kchip/s
O-QPSK as specified in [2](1) — 400 — kchip/s
O-QPSK as specified in [2], [3](2) — 1000 — kchip/s
fHDR Header bit rate (SHR, PHR) BPSK as specified in [1](1) — 20 — kb/s
BPSK as specified in [1](2) — 40 — kb/s
O-QPSK as specified in [2](1) — 100 — kb/s
O-QPSK as specified in [2], [3](2) — 250 — kb/s
fPSDU PSDU bit rate BPSK as specified in [1](1) — 20 — kb/s
BPSK as specified in [1](2) — 40 — kb/s
O-QPSK as specified in [2](1) — 100 — kb/s
O-QPSK as specified in [2], [3](2) — 250 — kb/s
OQPSK_DATA_RATE = 1(1) — 200 — kb/s
OQPSK_DATA_RATE = 2(1) — 400 — kb/s
OQPSK_DATA_RATE = 1(2) — 500 — kb/s
OQPSK_DATA_RATE = 2(2) — 1000 — kb/s
fCLK Crystal oscillator frequency Reference oscillator — 16 — MHz
fSRD

Symbol rate deviation

Reference frequency accuracy for correct functionality

 PSDU bit rate — — — —
20/40/100/250 kb/s -60(3) — +60 ppm
200/400/500/1000 kb/s -40 — +40 ppm
  1. TRX_CTRL_2.SUB_MODE = 0
  2. TRX_CTRL_2.SUB_MODE = 1
  3. A reference frequency accuracy of ±40 ppm is required by [1], [2], [3], [4].