RFM22B-868-S1 QUASAR, RFM22B-868-S1 Datasheet - Page 20
![no-image](/images/no-image-200.jpg)
RFM22B-868-S1
Manufacturer Part Number
RFM22B-868-S1
Description
MODULE, TRANSCEIVER, 20DB,SMD,868MHZ
Manufacturer
QUASAR
Datasheet
1.RFM22B-868-D.pdf
(70 pages)
Specifications of RFM22B-868-S1
Modulation Type
FSK, GFSK, OOK
Data Rate Max
256Kbps
Sensitivity
-121dBm
Supply Voltage Range
1.8V To 3.6V
Supply Current
85mA
Interface Type
SPI
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 20 of 70
- Download datasheet (2Mb)
R F M 2 2 B / 2 3 B
3.4. System Timing
The system timing for TX and RX modes is shown in Figures 8 and 9. The figures demonstrate transitioning from
STANDBY mode to TX or RX mode through the built-in sequencer of required steps. The user only needs to
program the desired mode, and the internal sequencer will properly transition the part from its current mode.
The VCO will automatically calibrate at every frequency change or power up. The PLL T0 time is to allow for bias
settling of the VCO. The PLL TS time is for the settling time of the PLL, which has a default setting of 100 µs. The
total time for PLL T0, PLL CAL, and PLL TS under all conditions is 200 µs. Under certain applications, the PLL T0
time and the PLL CAL may be skipped for faster turn-around time. Contact applications support if faster turnaround
time is desired.
20
Tel: +86-755-82973805
XTAL Settling
XTAL Settling
600us
Time
Tim e
600us
Fax: +86-755-82973550
Figure 9. RX Timing
Figure 8. TX Timing
E-mail: sales@hoperf.com
RX Packet
TX Packet
Related parts for RFM22B-868-S1
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![RFM22B-868-D](/images/no-image3.png)
Part Number:
Description:
MODULE, TRANSCEIVER, 20DB, 868MHZ
Manufacturer:
QUASAR
Datasheet:
![QS1](/photos/23/30/233058/109611605-40_tmb.jpg)
Part Number:
Description:
REMOTE CONTROL SYSTEM, 1CH, 60M
Manufacturer:
QUASAR
Datasheet:
![QAM-TX3](/photos/23/37/233776/130402506-40_tmb.jpg)
Part Number:
Description:
MODULE, TRANSMITTER, AM, 433MHZ
Manufacturer:
QUASAR
Datasheet:
![QFM-RX1-433](/photos/23/37/233777/151742707-40_tmb.jpg)
Part Number:
Description:
MODULE, RECEIVER, FM
Manufacturer:
QUASAR
Datasheet:
![QFM-TX1-433](/photos/23/37/233778/151742607-40_tmb.jpg)
Part Number:
Description:
MODULE, TRANSMITTER, FM
Manufacturer:
QUASAR
Datasheet:
![R7G-434.075](/photos/23/37/233780/42409920_tmb.jpg)
Part Number:
Description:
RECEIVER, NARROW BAND, 434.075
Manufacturer:
QUASAR
Datasheet:
![R7G-434.525](/photos/23/37/233780/42409920_tmb.jpg)
Part Number:
Description:
RECEIVER, NARROW BAND, 434.525
Manufacturer:
QUASAR
Datasheet:
![T7G-434.075](/photos/23/37/233791/42409919_tmb.jpg)
Part Number:
Description:
TRANSMITTER, NARROW BAND, 434.075
Manufacturer:
QUASAR
Datasheet:
![SMP-03](/images/no-image3.png)
Part Number:
Description:
10-Terminal Ceramic Surface-Mount Case 7 x 5 mm Nominal Footprint
Manufacturer:
RFM [RF Monolithics, Inc]
Datasheet:
![RF3133PCBA](/images/no-image3.png)
Part Number:
Description:
QUAD-BAND GSM850/GSM/DCS/PCS POWER AMP MODULE
Manufacturer:
RFM [RF Monolithics, Inc]
Datasheet:
![RF3619D](/images/no-image3.png)
Part Number:
Description:
402 to 405 MHz Medical Band Front-end Filter
Manufacturer:
RFM [RF Monolithics, Inc]
Datasheet:
![RP1032](/images/no-image3.png)
Part Number:
Description:
674.03 MHz SAW Resonator
Manufacturer:
RFM [RF Monolithics, Inc]
Datasheet: