Rainbow Electronics MAX7033 - Manual (Page 3)

MAX7033
315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
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DC ELECTRICAL CHARACTERISTICS (+5.0V OPERATION) (continued)
(Typical Application Circuit, V DD5 = +4.5V to +5.5V, no RF signal applied, T A = -40°C to +105°C, unless otherwise noted. Typical val-
ues are at V DD5 = +5.0V and T A = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input-Voltage High V IH
V DD5 -
0.4
V
Input Logic Current High I IH 15 µA
f RF = 433MHz, V IRSEL = V DD5
V DD5 -
0.4
f RF = 375MHz, V IRSEL = V DD5 / 2 1.1
V
DD5
-
1.5
Image-Reject Select Voltage
(Note 2)
f RF = 315MHz, V IRSEL = 0V 0.4
V
DATAOUT Output-Voltage Low V OL I SINK = 10µA 0.125 V
DATAOUT Output-Voltage High V OH I SOURCE = 10µA
V DD5 -
0.125
V
AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, AV DD = DV DD = V DD5 = +3.0V to +3.6V, all RF inputs are referenced to 50 Ω, f
RF = 315MHz, T A = -40°C
to +105°C, unless otherwise noted. Typical values are at AV DD = DV DD = V DD5 = +3.3V and T A = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
GENERAL CHARACTERISTICS
Startup Time t ON
Time for valid signal detection after V SHDN
= DV DD
250 µs
Receiver Input Frequency f RF 300 450 MHz
Maximum Receiver Input Level Modulation depth >18dB 0 dBm
Average carrier power level -120
Sensitivity (Note 3)
Peak power level -114
dBm
LNA gain from low to high 8 dB
AGC Hysteresis
Switching time from low to high gain 1 ms
Manchester coded 33
Maximum Data Rate
NRZ coded 66
kbps
LNA IN HIGH-GAIN MODE
f RF = 433MHz 1 - j3.4
f
RF
= 375MHz 1 - j3.9 Input Impedance Z
IN_LNA
Normalized to 50 Ω
f RF = 315MHz 1 - j4.7
1dB Compression Point P1dB LNA -22 dBm
Input-Referred 3rd-Order
Intercept
IIP3 LNA -12 dBm
LO Signal Feedthrough to
Antenna
-80 dBm
Output Impedance Z OUT_LNA Normalized to 50 Ω 0.12 - j4.4
Noise Figure NF
LNA
3 dB