Si4455
Table 4. Receiver AC Electrical Characteristics 1
Parameter
RX Frequency
Range
Symbol
F RX
Test Condition
Min
283
425
Typ
Max
350
525
Unit
MHz
MHz
850
960
MHz
RX Sensitivity
P RX-_2
(BER < 0.1%)
–116
dBm
(2.4 kbps, GFSK, BT = 0.5,
? F = ? 30 kHz, 114 kHz Rx BW) 2
P RX-_40
(BER < 0.1%)
–108
dBm
(40 kbps, GFSK, BT = 0.5,
? F = ? 25 kHz, 114 kHz Rx BW) 2
P RX-_128
(BER < 0.1%)
–103
dBm
(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
(BER < 0.1%, 40 kbps, 185 kHz Rx BW,
–113
–102
dBm
dBm
OOK, PN15 data) 2
RX Channel Bandwidth 2
BW
40
850
kHz
BER Variation vs Power
Level 2
RSSI Resolution
P RX_RES
RES RSSI
Up to +5 dBm Input Level
0
±0.5
0.1
ppm
dB
? 1-Ch Offset
Selectivity 2
C/I 1-CH
Desired Ref Signal 3 dB above sensitiv-
–56
dB
? 2-Ch Offset Selectivity
2
C/I 2-CH
ity, BER < 0.1%. Interferer is CW and
desired modulated with 1.2 kbps,
? F = 5.2 kHz, GFSK with BT= 0.5,
–59
dB
RX BW = 58 kHz
channel spacing = 100 kHz
Blocking 200 kHz–1 MHz
200K BLOCK Desired Ref Signal 3 dB above sensitiv-
–58
dB
Blocking 1 MHz Offset 2
Blocking 8 MHz Offset 2
1M BLOCK
8M BLOCK
ity, BER < 0.1%. Interferer is CW and
desired modulated with 1.2 kbps
? F = 5.2 kHz GFSK with BT = 0.5,
–61
–79
dB
dB
RX BW = 58 kHz
Image Rejection 2
Im REJ
Rejection at the image frequency
–35
dB
IF = 468 kHz
Spurious Emissions 3
P OB_RX1
Measured at RX pins
–54
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
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