RFM31B Datasheet, PDF (6/63 Pages) List of Unclassifed Manufacturers – ISM RECEIVER

RFM31B
Table 3. Receiver AC Electrical Characteristics
Parameter
RX Frequency
Range
Symbol
F_RX
Conditions
433MHz band
868MHz band
915MHz band
RX Sensitivity
RX Channel Bandwidth
P_{RX_2}
P_{RX_40}
P_{RX_100}
P_{RX_125}
P_{RX_OOK}
BW
(BER < 0.1%)
(2 kbps, GFSK, BT = 0.5, f = 5 kHz)
special crystal is used on the module
(BER < 0.1%)
(1.2kbps,FSK, BT = 0.5,
f = 45 kHz)
(BER < 0.1%)
(100 kbps, GFSK, BT = 0.5,
f = 50 kHz)
(BER < 0.1%)
(125 kbps, GFSK, BT = 0.5,
f = 62.5 kHz)
(BER < 0.1%)
(4.8 kbps, 350 kHz BW, OOK)
(BER < 0.1%)
(40 kbps, 400 kHz BW, OOK)
Min Typ Max Units
413
453 MHz
848
888 MHz
901
929 MHz
— –121 _— dBm
— –114 — dBm
— –104 — dBm
— –101 — dBm
— –110 — dBm
— –102 — dBm
2.6
—
620 kHz
BER Variation vs Power
Level
P_{RX_RES}
Up to +5 dBm Input Level
—
0
0.1 ppm
RSSI Resolution
RES_RSSI
—
1-Ch Offset Selectivity
2-Ch Offset Selectivity
 3-Ch Offset Selectivity
C/I_1-CH Desired Ref Signal 3 dB above sensitivity, —
C/I_2-CH
BER < 0.1%. Interferer and desired modu-
lated with 40 kbps F = 20 kHz GFSK with
—
C/I_3-CH
BT = 0.5, channel spacing = 150 kHz
—
Blocking at 1 MHz Offset 1M_BLOCK Desired Ref Signal 3 dB above sensitivity. —
Blocking at 4 MHz Offset
4M_BLOCK
Interferer and desired modulated with
40 kbps F = 20 kHz GFSK with BT = 0.5
—
Blocking at 8 MHz Offset 8M_BLOCK
—
Image Rejection
Im_REJ
Rejection at the image frequency.
—
IF=937 kHz
Spurious Emissions
P_{OB_RX1}
Measured at RX pins
—
±0.5 — dB
–31
— ^dB
–35
— dB
–40
— ^dB
–52
— ^dB
–56
— dB
–63
— ^dB
–30
— dB
—
–54 dBm
Tel: [phone] Fax: [phone] E-mail: [e-mail] http://www.hoperf.com
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