RFM31B-868-S1 QUASAR, RFM31B-868-S1 Datasheet - Page 18
RFM31B-868-S1
Manufacturer Part Number
RFM31B-868-S1
Description
MODULE, RECEIVER, -118DB, SMD,868MHZ
Manufacturer
QUASAR
Datasheet
1.RFM31B-868-D.pdf
(57 pages)
Specifications of RFM31B-868-S1
Modulation Type
FSK, GFSK, OOK
Sensitivity
-121dBm
Power Supply
1.8V To 3.6V
Supply Current
18.5mA
Data Rate Max
256Kbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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RFM31B
3.4. System Timing
The system timing for RX mode is shown in Figure 7. 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.
XTAL Settling
RX Packet
Time
600us
Figure 7. RX Timing
Tel: +86-755-82973805
Fax: +86-755-82973550
E-mail: sales@hoperf.com http://www.hoperf.com
18
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