LT5503 datasheet(9/20 Pages) LINER

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LT5503

TYPICAL PERFOR A CE CHARACTERISTICS

RF Output Power and LO1

Feedthrough 1.9GHz Matching

Small-Signal Conversion Gain

and IIP3 1.9GHz Matching

LO1IN and MIXRFOUT Return Loss

1.9GHz Matching

RF Output Power and LO1

Feedthrough 2.4GHz Matching

Small-Signal Conversion Gain

and IIP3 2.4GHz Matching

LO1 and MIXRFOUT Return Loss

2.4GHz Matching

MIXEN Input Current vs Enable

Voltage (MIXEN = VCC2)

RF OUTPUT FREQUENCY (MHz)

1650

–12

–14

–16

–18

–20

–22

–10

–20

–30

–40

–50

2050

5503 G35

1750

1850

1950

2150

OUTPUT

POWER

LO1

FEEDTHROUGH

LO2IN = 480MHz AT –18dBm

LO1IN = fRF –240MHz AT –12dBm

RF OUTPUT FREQUENCY (MHz)

1650

–2

–4

–3

–6

–9

–12

–15

–18

2050

5503 G36

1750

1850

1950

2150

IIP3

SMALL-SIGNAL

CONVERSION

GAIN

LO2IN = 480MHz AT –18dBm

LO1IN = fRF –240MHz AT –30dBm/TONE

FREQUENCY (MHz)

1100

–5

–10

–15

–20

–25

–30

1700

2100

5503 G37

1300 1500

1900

2300 2500

LO1IN

MIXRFOUT

RF OUTPUT FREQUENCY (MHz)

2250

–12

–14

–16

–18

–20

–22

–10

–20

–30

–40

–50

2650

5503 G38

2350

2450

2550

LO1

FEEDTHROUGH

OUTPUT

POWER

LO2IN = 750MHz AT –18dBm

LO1IN = fRF –375MHz AT –12dBm

RF OUTPUT FREQUENCY (MHz)

2250

–2

–4

–3

–6

–9

–12

–15

–18

2650

5503 G39

2350

2450

2550

IIP3

SMALL-SIGNAL

CONVERSION

GAIN

LO2IN = 750MHz AT –18dBm

LO1IN = fRF –375MHz AT –30dBm/TONE

FREQUENCY (MHz)

1450

–5

–10

–15

–20

–25

–30

2050

2450

5503 G40

1650 1850

2250

2650 2850

LO1

MIXRFOUT

MIXEN VOLTAGE (V)

1.8

3.2

4.6

5.3

300

270

240

210

180

150

120

5503 G41

2.5

3.9

TA = 85°C

TA = –40°C

TA = 27°C

VCC2 = 3VDC, MIXEN = high, DMODE = low (LO2 ÷ 2mode), TA = 27°C, unless otherwise noted. (Test circuit shown in Figure 2.)

(Mixer)

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