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MAX7033

315MHz/433MHz ASK Superheterodyne Receiver with AGC Lock

Maxim Integrated 

MAX7033

315MHz/433MHz ASK Superheterodyne

Receiver with AGC Lock

Electrical Characteristics (continued)

(Typical Application Circuit, VAVDD = VDVDD = VDD5 = +3.0V to +3.6V, all RF inputs are referenced to 50Ω, fRF = 315MHz,

TA = -40°C to +105°C, unless otherwise noted. Typical values are at VAVDD = VDVDD = VDD5 = +3.3V and TA = +25°C.) (Note 1)

PARAMETER

LNA IN LOW-GAIN MODE

Input Impedance

1dB Compression Point

SYMBOL

CONDITIONS

ZIN_LNA

Normalized to 50Ω

(Note 4)

P1dBLNA

fRF = 433MHz

fRF = 375MHz

fRF = 315MHz

MIN TYP MAX UNITS

1 - j3.4

1 - j3.9

1 - j4.7

-10

dBm

Input-Referred 3rd-Order Intercept IIP3LNA

-7

dBm

LO Signal Feedthrough to

Antenna

Noise Figure

Voltage-Gain Reduction

MIXER

NFLNA

AGC enabled (depends on tank Q)

-80

dBm

3

dB

35

dB

Input-Referred 3rd-Order Intercept IIP3MIX

-18

dBm

Output Impedance

ZOUT_MIX

330

Noise Figure

NFMIX

16

fRF = 433MHz, VIRSEL = VDVDD

42

Image Rejection

(Not Including LNA Tank)

fRF = 375MHz, VIRSEL = VDVDD/2

44

fRF = 315MHz, VIRSEL = 0V

44

LNA/Mixer Voltage Gain

LNA in high-gain mode

48

330Ω IF filter load

LNA in low-gain mode

13

INTERMEDIATE FREQUENCY (IF)

Input Impedance

ZIN_IF

330

Operating Frequency

fIF

Bandpass response

10.7

3dB Bandwidth

10

RSSI Linearity

±0.5

RSSI Dynamic Range

80

RSSI Level

AGC Threshold

PRFIN < -120dBm

1.15

PRFIN > 0dBm, AGC enabled

2.2

LNA gain from low to high

1.39

LNA gain from high to low

1.98

DATA FILTER

Maximum Bandwidth

50

DATA SLICER

Comparator Bandwidth

100

Ω

dB

dB

dB

Ω

MHz

MHz

dB

dB

V

V

kHz

kHz

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