SM1212E433 Datasheet, PDF (10/77 Pages) Semtech Corporation – Ultra-Low Power Integrated 300-510MHz Transceiver

ADVANCED COMMUNICATIONS & SENSING
SX1212
2.4.4. Receiver
On the following table, fc and fo describe the bandwidth of the active channel filters as described in section 3.4.4.2.
All sensitivities are measured receiving a PN15 sequence, for a BER of 0.1.%
Table 8: Receiver Specification
Symbol
Description
Conditions
Min
Typ
434 MHz, BR=25 kb/s, Fdev
=50 kHz, fc=100 kHz
-
-104
RFS_F
Sensitivity (FSK)
-
-
-
-
-
-
434 MHz, 2kb/s NRZ
fc-fo=50 kHz, fo=50 kHz
-
-110
RFS_O
Sensitivity (OOK)
-
-
-
-
-
-
CCR
Co-channel rejection
Modulation as wanted signal
-
-12
ACR
Adjacent channel
rejection
Offset = 300 kHz
Offset = 600 kHz
Offset = 1.2 MHz
-
-
-
42
-
53
Offset = 1 MHz,
unmodulated
-
53
BI
Blocking immunity
Offset = 2 MHz,
unmodulated, no SAW
-
-
Offset = 10 MHz,
unmodulated, no SAW
-
-
RXBW_F^(1,2)
Receiver bandwidth in
FSK mode
Single side BW
Polyphase Off
50
-
RXBW_O^(1,2)
IIP3
TS_RE⁽¹⁾
TS_RE2⁽¹⁾
Receiver bandwidth in
OOK mode
Input 3^rd order intercept
point
Receiver wake-up time
Receiver wake-up time
Single side BW
Polyphase On
Interferers at 1MHz and
1.950 MHz offset
From FS to Rx ready
From Stby to Rx ready
50
-
-
-28
-
280
-
600
200 kHz step
-
400
1MHz step
-
400
Receiver hop time from 5MHz step
-
460
TS_RE_HOP Rx ready to Rx ready with 7MHz step
-
480
a frequency hop
12MHz step
-
520
20MHz step
-
550
27MHz step
-
600
TS_RSSI
RSSI sampling time
From Rx ready
-
-
DR_RSSI
RSSI dynamic Range
Ranging from sensitivity
-
70
(1) _{Information from design and characterization}
(2) _{This reflects the whole receiver bandwidth, as described in sections 3.4.4.1 and 3.4.4.2}
Max
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
250
400
-
500
900
-
-
-
-
-
-
-
1/Fdev
-
Unit
dBm
dBm
dBc
dB
dB
dB
dBc
kHz
kHz
dBm
µs
µs
µs
µs
µs
µs
µs
µs
µs
s
dB
Rev 2 – June 18th, 2009
Page 10 of 77
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