300MHz to 450MHz ASK Receiver
with Internal IF Filter
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, 50 Ω system impedance, V AVDD = V DVDD = V DD = 3.0V to 3.6V, f RF = 300MHz to 450MHz, T A = -40°C to
+105°C, unless otherwise noted. Typical values are at V AVDD = V DVDD = V DD = 3.3V, T A = +25°C, f RF = 315MHz, unless otherwise
noted.) (100% tested at T A = +105°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LNA/MIXER
LNA Input Impedance
Z INLNA
Normalized to 50 Ω
f RF = 315MHz
f RF = 433MHz
0.4 -
j5.6
0.4 -
j4.0
Ω
LO Signal Feedthrough to
Antenna
-75
dBm
Voltage Gain Reduction
LNA/Mixer Voltage Gain
Low-gain mode, AGC enabled
High-gain LNA mode
Low-gain LNA mode
29
55
26
dB
dB
3dB Cutoff Frequency
RSSI Linearity
BW IF
Set by capacitors on IFC1 and IFC2 (see
the Typical Application Circuit )
400
±0.5
kHz
dB
RSSI Dynamic Range
RSSI Level
Intermediate Frequency
Maximum Data-Filter Bandwidth
Maximum Data-Slicer Bandwidth
Maximum Peak Detector
Bandwidth
Maximum Data Rate
f IF
BW DF
BW DS
Includes AGC
P RFIN < -120dBm
P RFIN > 0dBm, AGC enabled
Manchester coded
Nonreturn to zero (NRZ)
80
1.34
2.35
200
50
100
50
33
66
dB
V
kHz
kHz
kHz
kHz
kbps
Crystal Frequency
Crystal Load Capacitance
f XTAL
C LOAD
9.36
10
14.06
MHz
pF
Note 2: BER = 2 x 10 -3 , Manchester coded, data rate = 4kbps. IF bandwidth = 400kHz.
4
_______________________________________________________________________________________
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