MAX2121B datasheet(5/20 Pages) MAXIM

Teilenummer	MAX2121B

Bauteilbeschribung	L-Band Tuner with Programmable Baseband Filter

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Hersteller	MAXIM [Maxim Integrated Products]

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(MAX2121 Evaluation Kit: VCC = +3.3V, TA = +25°C, baseband output frequency = 5MHz, VGC1 = +1.2V, default register settings except

BBG[3:0] = 1011, LPF[7:0] = 97h, unless otherwise noted.)

QUADRATURE PHASE ERROR

vs. LO FREQUENCY

LO FREQUENCY (MHz)

1900

1650

1400

1150

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0

900

2150

fBASEBAND = 50MHz

TA = +85°C

TA = +25°C

TA = -40°C

SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

3.4

3.3

3.2

130

135

140

145

150

155

160

165

170

175

125

3.1

3.5

TA = +85°C

TA = +25°C

TA = -40°C

QUADRATURE MAGNITUDE MATCHING

vs. BASEBAND FREQUENCY

BASEBAND FREQUENCY (MHz)

10

1

0.2

0.4

0.6

0.8

1.0

0

0.1

100

fLO = 1425MHz

TA = +85°C

TA = +25°C

TA = -40°C

120

125

130

135

140

145

150

46

62

78

94

110

126

142

158

LPF[7:0] (DECIMAL)

SUPPLY CURRENT vs. LPF[7:0]

toc01a

-40

-35

-30

-25

-20

-15

-10

-5

0

50

100

150

200

250

300

BASEBAND FREQUENCY (MHz)

BASEBAND FILTER FREQUENCY

RESPONSE

LPF=46d

LPF=84d LPF=121d

LPF=151d

HD3 vs. VOUT

VOUT (VP-P)

2.5

2.0

1.5

-55

-50

-45

-40

-35

-30

-25

-20

-15

-10

-60

1.0

3.0

QUADRATURE MAGNITUDE MATCHING

vs. LO FREQUENCY

LO FREQUENCY (MHz)

1900

1650

1400

1150

0.2

0.4

0.6

0.8

1.0

0

900

2150

fBASEBAND = 50MHz

TA = +85°C

TA = +25°C

TA = -40°C

QUADRATURE PHASE ERROR

vs. BASEBAND FREQUENCY

BASEBAND FREQUENCY (MHz)

10

1

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0

0.1

100

fLO = 1425MHz

TA = +85°C

TA = +25°C

TA = -40°C

STANDBY SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

3.4

3.3

3.2

1.5

2.0

2.5

3.0

1.0

3.1

3.5

TA = +85°C

TA = -40°C

Typical Operating Characteristics

Maxim Integrated │ 5

www.maximintegrated.com

MAX2121B

L-Band Tuner with Programmable

Baseband Filter

Ähnliche Beschreibung - MAX2121B

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