MRF49XA Datasheet, PDF (81/102 Pages) Microchip Technology – ISM Band Sub-GHz RF Transceiver

MRF49XA
TABLE 5-4: RECEIVER AC CHARACTERISTICS⁽¹⁾
Parameters
Condition
Min
Typ
Max
Unit
Receiver Sensitivity 433 MHz band⁽²⁾
—
868 MHz band⁽²⁾
—
915 MHz band⁽²⁾
—
Maximum RF Input LNA: High Gain
0
Power
RF Input Capacitance
—
—
Receiver Spurious
—
—
Emission
Receiver BW
Mode 0
—
Mode 1
—
Mode 2
—
Mode 3
—
Mode 4
—
Mode 5
—
RSSI Range
—
—
RSSI Error
—
—
RSSI Power Supply When input signal level is lower than
—
Dependency
-54 dBm and greater than -100 dBm
Filter Capacitor for
—
1
Analog RSSI
RSSI Programmable
—
—
Level Steps
Digital RSSI
Until the RSSI signal goes high after
—
Response Time
the input signal exceeds the
preprogrammed limit,
CARRSI = 4.7 nF
Input IP3
In band interferers in high bands
—
(868 MHz, 915 MHz)
IIP3
In band interferers in low band
—
(LNA – 6 dB gain) (433 MHz)
IIP3
Out of band interferers,
—
(LNA – 6 dB gain) l f-fO l > 4 MHz
FSK Bit Rate
With internal digital filters supported
0.6
by design
FSK Bit Rate
With internal analog filters supported
—
by design
AFC Locking Range Δffsk: FSK deviation in the received
—
signal
-112
—
-110
—
-109
—
—
—
1
—
—
-60
67
—
134
—
200
—
270
—
340
—
400
—
46
—
±6
—
+35
—
—
—
6
—
500
—
-21
-15
-12
—
—
0.8 – Δffsk
—
—
—
115.2
256
—
dBm
dBm
dBm
dBm
pF
dBm
kHz
kHz
kHz
kHz
kHz
kHz
dB
dB
mV/V
nF
dB
μs
dBm
dBm
dBm
kbps
kbps
—
Note 1: Typical Values: TA = 25°C, VDD = 3.3V, Local Oscillator Frequency = 2.445 GHz.
2: BER = 10E – 3, BW = 67 kHz, Δf = 30 kHz, Baud Rate = 1.2 kbps, digital filter with AFC disabled.
© 2009 Microchip Technology Inc.
Preliminary
DS70590B-page 79