MAX1470 Datasheet, PDF (3/12 Pages) Maxim Integrated Products – 315MHz Low-Power, +3V Superheterodyne Receiver

315MHz Low-Power, +3V Superheterodyne
Receiver
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, all RF inputs and outputs are referenced to 50Ω, V_DD = +3.3V, T_A = +25°C, f_RFIN = 315MHz, unless oth-
erwise noted.) (Note 1)
PARAMETER
Noise Figure
Power Gain
MIXER
SYMBOL
NF_LNA
CONDITIONS
MIN TYP MAX UNITS
2.0
dB
16
dB
Input Impedance
Input-Referred 3rd-Order
Intercept
Output Impedance
Image Rejection
Noise Figure
Conversion Gain
S11_MIX Normalized to 50Ω
0.25 -
j2.4
IIP3_MIX
-18
Z_OUT__MIX
330
f_RFIN = 315MHz, f_RF__IMAGE = 293.6MHz (Note 4)
40
53
f_RFIN = 433.92MHz, f_RF__IMAGE = 412.52MHz
39
NF_MIX
16
330Ω IF filter load
13
dBm
Ω
dB
dB
dB
INTERMEDIATE-FREQUENCY DEMODULATOR BLOCK
Input Impedance
Z_IN__IF
Operating Frequency
f_IF
RSSI Linearity
RSSI Dynamic Range
330
Ω
10.7
MHz
±1
dB
65
dB
RSSI Level
DATA FILTER
Maximum Bandwidth
DATA SLICER
P_RFIN < -120dBm
P_RFIN > -50dBm
BW_DF
1.2
V
2.0
100
kHz
Comparator Bandwidth
Maximum Load Capacitance
CRYSTAL OSCILLATOR
BW_CMP
C_LOAD
100
kHz
10
pF
Reference Frequency
f_REF
4.7547
MHz
Note 1: Parts are production tested at T_A = +25°C; Min and Max values are guaranteed by design and characterization.
Note 2: BER = 2E-3, Manchester encoded, data rate = 4kbps, IF bandwidth = 350kHz.
Note 3: Input impedance is measured at the LNAIN pin. Note that the impedance includes the 15nH inductive degeneration con-
nected from the LNASRC.
Note 4: Guaranteed by production test.
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