MAX1473 Datasheet, PDF (4/17 Pages) Maxim Integrated Products – 315MHz/433MHz ASK Superheterodyne Receiver with Extended Dynamic Range

315MHz/433MHz ASK Superheterodyne
Receiver with Extended Dynamic Range
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, V_DD = 3.0V to 3.6V, all RF inputs are referenced to 50Ω, f_RF = 315MHz, T_A = -40°C to +85°C, unless oth-
erwise noted. Typical values are at V_DD = 3.3V and T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
LO Signal Feedthrough to
Antenna
-80
dBm
Output Impedance
Noise Figure
LNA IN LOW-GAIN MODE
Input Impedance (Note 4)
1dB Compression Point
Input-Referred 3rd-Order
Intercept
S22_LNA
NF_LNA
Normalized to 50Ω
S11_LNA
Normalized to
50Ω
P1dB_LNA
IIP3_LNA
f_RF = 433MHz
f_RF = 375MHz
f_RF = 315MHz
0.12 - j4.4
2
1 - j4.7
1 - j3.9
1 - j3.4
-10
-7
dB
dBm
dBm
LO Signal Feedthrough to
Antenna
Output Impedance
Noise Figure
Power Gain
Voltage Gain Reduction
MIXER
Input Impedance
Input-Referred 3rd-Order
Intercept
Output Impedance
Noise Figure
S22_LNA
NF_LNA
S11_MIX
IIP3_MIX
Z_{OUT_MIX}
NF_MIX
Image Rejection
(not Including LNA Tank)
Conversion Gain
INTERMEDIATE FREQUENCY (IF)
Input Impedance
Operating Frequency
3dB Bandwidth
RSSI Linearity
RSSI Dynamic Range
Z_{IN_IF}
f_IF
RSSI Level
RSSI Gain
AGC Threshold
Normalized to 50Ω
AGC enabled (depends on tank Q)
Normalized to 50Ω
f_RF = 433MHz, V_IRSEL = V_DD
f_RF = 375MHz, V_IRSEL = V_DD/2
f_RF = 315MHz, V_IRSEL = 0V
330Ω IF filter load
Bandpass response
P_RFIN < -120dBm
P_RFIN > 0dBm, AGC enabled
LNA gain from low to high
LNA gain from high to low
-80
0.4
2
0
35
0.25 - j2.4
-18
330
16
42
44
44
13
330
10.7
20
±0.5
80
1.15
2.35
14.2
1.45
2.05
dBm
dB
dB
dB
dBm
Ω
dB
dB
dB
Ω
MHz
MHz
dB
dB
V
mV/dB
V
4 _______________________________________________________________________________________