MAX1473EUI(2003) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1473EUI
(Rev.:2003)

315MHz/433MHz ASK Superheterodyne Receiver with Extended Dynamic Range

Maxim Integrated 

315MHz/433MHz ASK Superheterodyne

Receiver with Extended Dynamic Range

AC ELECTRICAL CHARACTERISTICS (continued)

(Typical Application Circuit, VDD = 3.0V to 3.6V, all RF inputs are referenced to 50Ω, fRF = 315MHz, TA = -40°C to +85°C, unless oth-

erwise noted. Typical values are at VDD = 3.3V and TA = +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

S22LNA

NFLNA

Normalized to 50Ω

S11LNA

Normalized to

50Ω

P1dBLNA

IIP3LNA

fRF = 433MHz

fRF = 375MHz

fRF = 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

S22LNA

NFLNA

S11MIX

IIP3MIX

ZOUT_MIX

NFMIX

Image Rejection

(not Including LNA Tank)

Conversion Gain

INTERMEDIATE FREQUENCY (IF)

Input Impedance

Operating Frequency

3dB Bandwidth

RSSI Linearity

RSSI Dynamic Range

ZIN_IF

fIF

RSSI Level

RSSI Gain

AGC Threshold

Normalized to 50Ω

AGC enabled (depends on tank Q)

Normalized to 50Ω

fRF = 433MHz, VIRSEL = VDD

fRF = 375MHz, VIRSEL = VDD/2

fRF = 315MHz, VIRSEL = 0V

330Ω IF filter load

Bandpass response

PRFIN < -120dBm

PRFIN > 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 _______________________________________________________________________________________

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