RFM31
Table 3. Transmitter AC Electrical Characteristics
1
Parameter
RX Frequency Range
RX Sensitivity
Symbol
Conditions
Low Band
High Band
(BER < 0.1%)
(2 kbps, GFSK, BT = 0.5,
△f
=±5 kHz)
2
P
RX_40
(BER < 0.1%)
(40 kbps, GFSK, BT = 0.5,
△f
=±20 kHz)
2
P
RX_100
(BER < 0.1%)
(100 kbps, GFSK, BT = 0.5,
△f
=±50 kHz)
2
P
RX_125
(BER < 0.1%)
(125 kbps, GFSK, BT = 0.5,
△f
=±62.5 kHz)
1
P
RX_OOK
(BER < 0.1%)
(4.8 kbps, 350 kHz BW, OOK)
2
(BER < 0.1%)
(40 kbps, 400 kHz BW, OOK)
1
RX Bandwidth
2
Residual BER
Performance
2
Input Intercept Point, 3
rd
Order
2
RSSI Resolution
±1-Ch
Offset Selectivity
2
(BER < 0.1%)
±2-Ch
Offset Selectivity
2
(BER < 0.1%)
≥±3-Ch
Offset
Selectivity
2
(BER <0.1%)
Blocking at 1 MHz
2
Blocking at 4 MHz
2
Blocking at 8 MHz
2
Image Rejection
2
Spurious Emissions
2
Notes:
1.
All specification guaranteed by production test unless otherwise noted.
2.
Guaranteed by qualification.
Min
240
480
—
Typ
—
—
–118
Max
480
960
-115
Units
MHz
MHz
dBm
F
SYNTH-LB
F
SYNTH-HB
P
RX_2
—
–107
-104
dBm
—
–103
-100
dBm
—
–101
-98
dBm
–110
—
2.6
–102
—
0
–20
±0.5
–31
–35
–40
–52
–56
–63
–30
—
-107
-99
620
0.1
—
—
—
—
—
—
—
—
—
–54
dBm
dBm
kHz
ppm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dBm
BW
P
RX_RES
IIP3
RX
RES
RSSI
C/I
1-CH
C/I
2-CH
C/I
3-CH
1M
BLOCK
4M
BLOCK
8M
BLOCK
Im
REJ
P
OB_RX1
Up to +5 dBm Input Level
f
1
= 915 MHz, f
2
= 915 MHz,
P
1
= P
2
= –40 dBm
—
—
—
Desired Ref Signal 3 dB above
sensitivity.
Interferer and desired modulated with
40 kbps△F = 20 kHz GFSK with BT =
0.5, channel spacing = 150 kHz
Desired Ref Signal 3 dB above sensitivity.
Interferer and desired modulated with
40 kbps△F = 20 kHz GFSK with BT = 0.5
—
—
—
—
—
—
—
—
IF=937 kHz
Measured at RX pins
(LO feed through)
6
Tel: +86-755-82973805
Fax: +86-755-82973550
E-mail: sales@hoperf.com
http://www.hoperf.com
HOPERF [ Hope Microelectronics co., Ltd ]
