MAX2424EAI 查看數據表（PDF） - Maxim Integrated

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MAX2424EAI

900MHz Image-Reject Receivers with Transmit Mixer

Maxim Integrated 

900MHz Image-Reject Receiver

with Transmit Mixer

__________________________________________Typical Operating Characteristics

(MAX2424/MAX2426 EV kit, VCC = +3.3V; fLO(RX) = 925.7MHz (MAX2424), 985MHz (MAX2426); fRXIN = 915MHz, PRXIN =

-35dBm, fLO(TX) = 915MHz, VTXIN = VTXIN = 2.3V (DC bias), VTXIN = 250mVp-p, fTXIN = 1MHz, VLNAGAIN = 2V, VVCOON = 2.4V,

RXON = TXON = MOD = DIV1 = PREGND = GND, TA = +25°C, unless otherwise noted.)

42

40

38

36

34

32

30

28

26

24

-40

RECEIVER SUPPLY CURRENT

vs. TEMPERATURE

VCC = 4.8V

VCC = 3.3V

VCC = 2.7V

RXON = VCC

PREGND = UNCONNECTED

INCLUDES OSCILLATOR

CURRENT

-20 0 20 40 60 80

TEMPERATURE (°C)

25

20

15

10

5

0

-5

-10

-15

-20

0

RECEIVER GAIN vs. LNAGAIN

LNA

LNA PARTIALLY

OFF BIASED

ADJUSTABLE MAX

GAIN

GAIN

AVOID

THIS

REGION

RXON = VCC

0.5

1.0

1.5

2.0

LNAGAIN VOLTAGE (V)

MAX2424

RECEIVER GAIN vs. TEMPERATURE

LNAGAIN = VCC

26

RXON = VCC

24

VCC = 4.8V

22

VCC = 2.7V

VCC = 3.3V

20

18

-40 -20

0 20 40 60 80

TEMPERATURE (°C)

TRANSMITTER SUPPLY CURRENT

vs. TEMPERATURE

39

37

35

33

VCC = 4.8V

31

VCC = 3.3V

29

27

VCC = 2.7V

25

23

21

-40 -20

TXON = VCC

PREGND = UNCONNECTED

INCLUDES OSCILLATOR

CURRENT

0 20 40 60 80

TEMPERATURE (°C)

RECEIVER INPUT IP3 vs. LNAGAIN

5

LNA

LNA ADJUSTABLE MAX

OFF PARTIALLY GAIN GAIN

0

BIASED

AVOID

-5

THIS

REGION

-10

-15

-20

0

RXON = VCC

0.5

1.0

1.5

2.0

LNAGAIN VOLTAGE (V)

RECEIVER NOISE FIGURE vs.

TEMPERATURE AND SUPPLY VOLTAGE

5.5

LNAGAIN = VCC

RXON = VCC

5.0 DIV1 = VCC

VCC = 4.8V

4.5

VCC = 3.3V

4.0

VCC = 2.7V

3.5

3.0

-40 -20

0 20 40 60 80

TEMPERATURE (°C)

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE

4.5

VCOON = GND

4.0

3.5

3.0

2.5

2.0

VCC = 4.8V

1.5

1.0

VCC = 3.3V

0.5

0

-40 -20

VCC = 2.7V

0 20 40 60 80

TEMPERATURE (°C)

RECEIVER NOISE FIGURE

vs. LNAGAIN

40

35

LNA ADJUSTABLE MAX

LNA PARTIALLY GAIN

GAIN

30

OFF

BIASED

25

20

15

10

5

0

0

AVOID

THIS

REGION

RXON = VCC

DIV1 = VCC

0.5

1.0

1.5

2.0

LNAGAIN VOLTAGE (V)

RECEIVER INPUT IP3

vs. TEMPERATURE

-6

-8

VLNAGAIN = 1V

-10

-12

-14

-16

-18

-20

-40

VLNAGAIN = 2V

RXON = VCC

-20 0 20 40 60 80

TEMPERATURE (°C)

_______________________________________________________________________________________ 5

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