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MRF89XA
TABLE 5-5:
RECEIVER AC CHARACTERISTICS (1)
Symbol
RSF
Parameter
Sensitivity (FSK)
Min
—
Typ
-107
Max
—
Unit
dBm
Condition
869 MHz, BR = 25 kbps,
f dev = 50 kHz, f c = 100 kHz
—
-103
—
dBm
869 MHz, BR = 66.7 kbps,
f dev = 100 kHz, f c = 200 kHz
—
—
-105
-101
—
—
dBm
dBm
915 MHz, BR = 25 kbps, f dev = 50
kHz, f c = 100 kHz
915 MHz, BR = 66.7 kbps,
f dev = 100 kHz, f c = 200 kHz
RSO
Sensitivity (OOK)
—
-113
—
dBm
869 MHz, 2kbps NRZ
f c – f o = 50 kHz, f o = 50 kHz
—
-106
—
dBm
869 MHz, 16.7 kbps NRZ
f c – f o = 100 kHz, f o = 100 kHz
—
-111
—
dBm
915 MHz, 2 kbps NRZ
f c – f o = 50 kHz, f o = 50 kHz
—
-105
—
dBm
915 MHz, 16.7 kbps NRZ
f c – f o = 100 kHz, f o = 100 kHz
CCR
ACR
Co-Channel Rejection
Adjacent Channel Rejection
—
—
-12
27
—
—
dBc
dB
Modulation as wanted signal
Offset = 300 kHz, unwanted tone is
not modulated
—
52
—
dB
Offset = 600 kHz, unwanted tone is
not modulated
—
57
—
dB
Offset = 1.2 MHz, unwanted tone is
not modulated
BI
Blocking Immunity
—
—
-48
-37
—
—
dBm
dBm
Offset = 1 MHz, unmodulated
Offset = 2 MHz, unmodulated, no
SAW
—
-33
—
dBm
Offset = 10 MHz, unmodulated, no
SAW
RXBWF
Receiver Bandwidth in FSK
50
—
250
kHz
Single side BW, Polyphase Off
Mode (2)
RXBWU
Receiver Bandwidth in OOK
50
—
400
kHz
Single side BW, Polyphase On
Mode (2)
ITP3
Input Third Order Intercept
—
-28
—
dBm
Interferers at 1 MHz and 1.950 MHz
Point
offset
TSRWF
TSRWS
TSRHOP
RSSIST
RSSTDR
Receiver Wake-up Time
Receiver Wake-up Time
Receiver Hop Time from RX
Ready to RX Ready with a
Frequency Hop
RSSI Sampling Time
RSSI Dynamic Range
—
—
—
—
—
—
—
—
—
—
—
280
600
400
400
460
480
520
550
600
—
70
500
900
—
—
—
—
—
—
—
1/ f dev
—
μs
μs
μs
μs
μs
μs
μs
μs
μs
s
dB
From FS to RX ready
From Stand-by to RX ready
200 kHz step
1 MHz step
5 MHz step
7 MHz step
12 MHz step
20 MHz step
27 MHz step
From RX ready
Ranging from sensitivity
Note 1:
2:
Guaranteed by design and characterization.
This reflects the whole receiver bandwidth, as described by conditions for active and passive filters.
DS70622C-page 106
Preliminary
? 2010–2011 Microchip Technology Inc.
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