MAX1473_11 Datasheet, PDF (5/15 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
otherwise noted. Typical values are at V_DD = 3.3V and T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
DATA FILTER
Maximum Bandwidth
BW_DF
100
kHz
DATA SLICER
Comparator Bandwidth
Maximum Load Capacitance
BW_CMP
C_LOAD
100
kHz
10
pF
Output High Voltage
V_DD5
V
Output Low Voltage
0
V
CRYSTAL OSCILLATOR
Crystal Frequency (Note 5)
f_XTAL
f_RF = 433MHz
f_RF = 315MHz
V_XTALSEL = 0V
V_XTALSEL = V_DD
V_XTALSEL = 0V
V_XTALSEL = V_DD
6.6128
13.2256
4.7547
9.5094
MHz
MHz
Crystal Tolerance
50
ppm
Input Impedance
From each pin to ground
6.2
pF
Note 1: 100% tested at T_A = +25°C. Guaranteed by design and characterization over temperature.
Note 2: IRSEL is internally set to 375MHz IR mode. It can be left open when the 375MHz image rejection setting is desired. A 1nF
capacitor is recommended in noisy environments.
Note 3: BER = 2 x 10^-3, Manchester encoded, data rate = 4kbps, IF bandwidth = 280kHz.
Note 4: Input impedance is measured at the LNAIN pin. Note that the impedance includes the 15nH inductive degeneration con-
nected from the LNA source to ground. The equivalent input circuit is 50Ω in series with 2.2pF.
Note 5: Crystal oscillator frequency for other RF carrier frequency within the 300MHz to 450MHz range is (f_RF - 10.7MHz)/64 for
XTALSEL = 0V, and (f_RF - 10.7MHz)/32 for XTALSEL = V_DD.
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