MAX2700 查看數據表（PDF） - Maxim Integrated

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MAX2700

1.8GHz to 2.5GHz Direct Downconversion Receivers

Maxim Integrated 

1.8GHz to 2.5GHz Direct Downconversion

Receivers

Typical Operating Characteristics (continued)

(MAX2700/MAX2701 EV kit (Figure 3), VCC = +3.0V, TA = +25°C, SHDN = GAIN_SET = VCC, X2_EN = GND, CEXT+ connected to

CEXT-, PLO = -13dBm, FLO = 980MHz (MAX2700) and 1200MHz (MAX2701), PLNAIN = -30dBm, PRFIN = -25dBm, LNAIN and RFIN

(single-ended input to balun) driven from 50Ω source, LNAOUT terminated into load; MIX_I, MIX_Q AC-coupled to 2kΩ load; IIN1+,

QIN1+, IIN2+, QIN2+ driven from 1.1kΩ AC-coupled source; IOUT1, QOUT1 AC-coupled to 2kΩ; IOUT2, QOUT2 AC-coupled to

100Ω; input to VGAs, 20mVp-p at 1MHz tone, set VAGC = 1.25V, unless otherwise noted.)

DSB MIXER NOISE FIGURE vs. FREQUENCY

vs. TEMPERATURE

15

14

TA = +85°C

13

12

11

10

9

TA = -45°C

8

TA = +25°C

7

1800 1850 1900 1950 2000 2050 2100

FREQUENCY (MHz)

MAX2700

MIXER IIP3 vs. VCC vs. TEMPERATURE

8

7

6

5

TA = +25°C TA = -45°C

4

TA = +85°C

3

2

1

0

2.60

DOUBLER ENABLED

2.85

3.10

3.35

VCC (V)

MIXER IIP2 vs. VCC vs. TEMPERATURE

35

30

25

20

TA = +85°C TA = +25°C TA = -45°C

15

10

DOUBLER ENABLED

5

2.60

2.85

3.10

3.35

VCC (V)

φ ERROR vs. LO FREQUENCY

2.00

1.75

LO-RFIN ISOLATION vs. LO FREQUENCY

(INCLUDING BALUN)

-40

DOUBLER DISABLED

-45

LO-LNAIN ISOLATION vs. LO FREQUENCY

-40

DOUBLER DISABLED

-50

1.50

DOUBLER ENABLED

DOUBLER DISABLED

1.25

-50

DOUBLER ENABLED

-55

-60

DOUBLER ENABLED

-70

1.00

1.7

1.8

1.9

2.0

2.1

FREQUENCY (GHz)

-60

0.85

0.90

0.95

1.00

1.05

FREQUENCY (GHz)

-80

0.85

0.90

0.95

1.00

1.05

FREQUENCY (GHz)

10 ______________________________________________________________________________________

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