MAX2700ECM 查看數據表（PDF） - Maxim Integrated

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MAX2700ECM

1.8GHz to 2.5GHz Direct Downconversion Receivers

Maxim Integrated 

1.8GHz to 2.5GHz Direct Downconversion

Receivers

Typical Operating Characteristics

(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.)

ICC vs. VCC vs. TEMPERATURE

180

170

TA = +25°C TA = +85°C

160

TA = -45°C

150

140

2.5 2.7 2.9 3.1 3.3 3.5

VCC (V)

MAX2700

LNA GAIN vs. FREQUENCY

vs. TEMPERATURE

20

TA = -45°C

18

TA = +25°C

16

TA = +85°C

14

12

HIGH-GAIN MODE

10

1700 1800 1900 2000 2100

FREQUENCY (MHz)

LNA GAIN vs. FREQUENCY

vs. TEMPERATURE

4

2

TA = -45°C

TA = +25°C

0

-2

-4

TA = +85°C

-6

-8

LOW-GAIN MODE

-10

1700 1800 1900 2000 2100

FREQUENCY (MHz)

LNA REVERSE ISOLATION

vs. FREQUENCY vs. GAIN MODE

-25

-30 HIGH-GAIN MODE

LOW-GAIN MODE

-35

-40

1700

1800

1900

2000

2100

FREQUENCY (MHz)

LNA NOISE FIGURE vs. FREQUENCY

vs. TEMPERATURE

2.6

TA = +85°C

2.4

2.2

2.0 TA = +25°C

1.8

1.6 TA = -45°C

HIGH-GAIN MODE

1.4

1700 1750 1800 1850 1900 1950 2000

FREQUENCY (MHz)

8 _______________________________________________________________________________________

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