SI4455-B1A-FM Datasheet, PDF (6/40 Pages) Silicon Laboratories – EASY-TO-USE, LOW-CURRENT OOK/(G)FSK SUB-GHZ TRANSCEIVER

Si4455
Table 4. Receiver AC Electrical Characteristics¹
Parameter
Symbol
Test Condition
Min
RX Frequency
F_RX
283
Range
425
850
RX Sensitivity
P_{RX-_2}
(BER < 0.1%)
—
(2.4 kbps, GFSK, BT = 0.5,
F = 30 kHz, 114 kHz Rx BW)²
P_{RX-_40}
(BER < 0.1%)
—
(40 kbps, GFSK, BT = 0.5,
F = 25 kHz, 114 kHz Rx BW)²
P_{RX-_128}
(BER < 0.1%)
—
(128 kbps, GFSK, BT = 0.5,
F = 70 kHz, 305 kHz Rx BW)²
P_{RX-_OOK}
(BER < 0.1%, 1 kbps, 185 kHz Rx BW,
OOK, PN15 data)²
—
RX Channel Bandwidth²
(BER < 0.1%, 40 kbps, 185 kHz Rx BW, —
OOK, PN15 data)²
BW
40
BER Variation vs Power
Level²
P_{RX_RES}
Up to +5 dBm Input Level
—
RSSI Resolution
1-Ch Offset Selectivity²
2-Ch Offset Selectivity²
RES_RSSI
—
C/I_1-CH
C/I_2-CH
Desired Ref Signal 3 dB above sensitiv- —
ity, BER < 0.1%. Interferer is CW and
desired modulated with 1.2 kbps,
—
F = 5.2 kHz, GFSK with BT= 0.5,
RX BW = 58 kHz
channel spacing = 100 kHz
Blocking 200 kHz–1 MHz ^200KBLOCK ^{Desired Ref Signal 3 dB above sensitiv- —}
Blocking 1 MHz Offset²
1M_BLOCK
ity, BER < 0.1%. Interferer is CW and
desired modulated with 1.2 kbps
—
Blocking 8 MHz Offset²
8M_BLOCK
F = 5.2 kHz GFSK with BT = 0.5,
—
RX BW = 58 kHz
Image Rejection²
Im_REJ
Rejection at the image frequency
—
IF = 468 kHz
Spurious Emissions³
P_{OB_RX1}
Measured at RX pins
—
Typ
—
—
—
–116
–108
–103
–113
–102
—
0
±0.5
–56
–59
–58
–61
–79
–35
–54
Max Unit
350 MHz
525 MHz
960 MHz
— dBm
— dBm
— dBm
— dBm
— dBm
850 kHz
0.1 ppm
— dB
— dB
— dB
— dB
— dB
— dB
— dB
— dBm
Notes:
1. All specifications guaranteed by production test unless otherwise noted. Production test conditions and max limits are
listed in section "1.1. Definition of Test Conditions" on page 11.
2. Guaranteed by qualification. Qualification test conditions are listed in section "1.1. Definition of Test Conditions" on page
11.
3. Emissions specifications are based on frequency, matching components, and board layout.
6
Rev 1.1