RFM66W Datasheet, PDF (67/87 Pages) List of Unclassifed Manufacturers – 868 & 915MHz Ultra Low Power High Link Budget Integrated UHF Transceiver

WIRELESS & SENSING
RFM66W
DATASHEET
Name
(Address)
Bits
RegFrfMsb
7-0
(0x06)
RegFrfMid
7-0
(0x07)
RegFrfLsb
7-0
(0x08)
RegPaConfig
7
(0x09)
6-4
3-0
RegPaRamp 7-5
(0x0A)
4
3-0
Variable Name
Frf(23:16)
Mode
Default
value
Description
rw 0xe4 MSB of the RF carrier frequency
Frf(15:8)
rw 0xc0 MSB of the RF carrier frequency
Frf(7:0)
rwx 0x00 LSB of RF carrier frequency
Frf = Fstep × Frf(23;0)
PaSelect
unused
OutputPower
unused
LowPnTxPllOff
PaRamp
Default value: 915.000 MHz
The RF frequency is taken into account internally only when:
- entering FSRX/FSTX modes
- re-starting the receiver
Registers for the Transmitter
rw 0x00 Selects PA output pin
0 → RFO pin. Maximum power of +13 dBm
1 → PA_BOOST pin. Maximum power of +20 dBm
r 0x00 unused
rw 0x0f Output power setting, with 1dB steps
Pout = 2 + OutputPower [dBm] , on PA_BOOST pin
Pout = -1 + OutputPower [dBm] , on RFO pin
r
- unused
rw 0x01 Select a higher power, lower phase noise PLL only when the
transmitter is used:
0 → Standard PLL used in Rx mode, Lower PN PLL in Tx
1 → Standard PLL used in both Tx and Rx modes
rw 0x09 Rise/Fall time of ramp up/down in FSK
0000 → 3.4 ms
0001 → 2 ms
0010 → 1 ms
0011 → 500 us
0100 → 250 us
0101 → 125 us
0110 → 100 us
0111 → 62 us
1000 → 50 us
1001 → 40 us (d)
1010 → 31 us
1011 → 25 us
1100 → 20 us
1101 → 15 us
1110 → 12 us
1111 → 10 us
Tel: [phone] Fax: [phone] E-mail: [e-mail] http://www.hoperf.com
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