LTC5585_15 datasheet(7/38 Pages) LINER

7 / 38 page

LTC5585

5585fb

For more information www.linear.com/LTC5585

TYPICAL PERFORMANCE CHARACTERISTICS

IIP2 vs IP2I, IP2Q Trim Voltage

IIP2 vs RF Tone Spacing

2x2 Half-IF IIP2

vs RF to LO Tone Spacing

Noise Figure and Conversion

Gain vs LO Power

Noise Figure and Conversion

Gain vs Temperature (TC)

2-Tone IIP3 vs RF Power

Uncalibrated IIP2 vs Temperature

(TC)

Noise Figure vs RF Power and

IP2I, IP2Q Trim Voltage

Uncalibrated IIP2 vs LO Power

700MHz application. VCC = 5V, EN = 5V, EDC = 0V,

EIP2 = 0V, REF = 0.5V, TC = 25°C, PLO = 6dBm, fLO = 690MHz, fRF1 = 700MHz, fRF2 = 701MHz, fBB = 10MHz, PRF1 = PRF2 = –5dBm,

DC Blocks and Mini-Circuits PSCJ-2-1 180° combiner at baseband outputs de-embedded from measurement unless otherwise noted.

Test circuit with RF and LO ports impedance matched as in Figure 1.

RF POWER (dBm)

–10

–4

5585 G06

–8

–6

–2

I, –40°C

I, 25°C

I, 85°C

I, 105°C

Q, –40°C

Q, 25°C

Q, 85°C

Q, 105°C

fRF1 = 700MHz

fRF2 = 701MHz

fLO = 690MHz

LO FREQUENCY (MHz)

600

100

110

900

5585 G07

700

800

1000

120

I, –40°C

I, 25°C

I, 85°C

I, 105°C

Q, –40°C

Q, 25°C

Q, 85°C

Q, 105°C

LO FREQUENCY (MHz)

600

100

110

900

5585 G08

700

800

1000

120

TC = 25°C

I, 0dBm

I, 6dBm

I, 10dBm

Q, 0dBm

Q, 6dBm

Q, 10dBm

RF TONE SPACING (MHz)

400

5585 G10

100

200

300

150

250

350

100

I (UNCALIBRATED)

I (NULLED AT 1MHz)

Q (UNCALIBRATED)

Q (NULLED AT 1MHz)

TC = 25°C

fRF1 = 700MHz

fLO = 690MHz

RF TO LO TONE SPACING (MHz)

100

200 250

5585 G11

150

300 350 400

TC = 25°C

fLO = 690MHz

LO FREQUENCY (MHz)

600

–4

700

900

–2

800

1000

5585 G12

I, –40°C

I, 25°C

I, 85°C

I, 105°C

Q, –40°C

Q, 25°C

Q, 85°C

Q, 105°C

GAIN

LO FREQUENCY (MHz)

600

–4

700

900

–2

800

1000

5585 G13

I, 0dBm

I, 6dBm

I, 10dBm

Q, 0dBm

Q, 6dBm

Q, 10dBm

TC = 25°C

GAIN

IP2I, IP2Q TRIM VOLTAGE (V)

0.8

5585 G14

0.2

0.1

0.4

0.3

0.6 0.7

0.9

0.5

1.0

I, –20dBm

I, 0dBm

Q, –20dBm

Q, 0dBm

TC = 25°C

fRF = 890MHz

fLO = 900MHz

fNOISE = 3.4MHz

EIP2 = 5V

IP2I, IP2Q (V)

100

0.8 0.9

5585 G09

0.2

0.4

0.6

0.1

1.0

0.3

0.5

0.7

120

fRF = 700MHz

110

I, –40°C

I, 25°C

I, 85°C

I, 105°C

Q, –40°C

Q, 25°C

Q, 85°C

Q, 105°C

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