LTC6948 datasheet(9/26 Pages) AD

9 / 26 page

LTC5556

Rev 0

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS Test circuit shown in Figure 1.

PRF = –6dBm/Tone, ∆f = 2MHz, PLO = 0dBm, VCC = 3.3V, VDD = 3.3V, TC = 25°C, full power mode, unless otherwise noted.

2.6GHz to 6.4GHz RF Input Matching: IF = 270MHz, Low Side LO

2-Tone IF Output Power, IM3 and

IM5 vs RF Input Power

Single-Tone IF Output Power, 2 × 2

and 3 × 3 Spurs vs RF Input Power

2 × 2 and 3 × 3 Spur Suppression

vs LO Power

VCC Supply Current vs Supply

Voltage (Both Channels Enabled)

VCC Shutdown Current vs Supply

Voltage (Both Channels Disabled)

3.6GHz Conversion Gain

Distribution

3.6GHz IIP3 Distribution

3.6GHz SSB NF Distribution

IM5

IM3

IFOUT

RF1 = 3599MHz

RF2 = 3601MHz

LO = 3330MHz

6dB IF ATTEN

RF INPUT POWER (dBm/TONE)

–12 –10 –8 –6 –4 –2

–80

–70

–60

–50

–40

–30

–20

–10

5556 G19

3RF – 3LO

(RF = 3420MHz)

2RF – 2LO

(RF = 3465MHz)

IFOUT

LO = 3330MHz

6dB IF ATTEN

RF INPUT POWER (dBm)

–15 –12 –9 –6 –3

–90

–80

–70

–60

–50

–40

–30

–20

–10

5556 G20

3RF – 3LO

(RF = 3420MHz)

2RF – 2LO

(RF = 3465MHz)

PRF = –6dBm

LO = 3330MHz

6dB IF ATTEN

LO INPUT POWER (dBm)

–6

–4

–2

–75

–70

–65

–60

–55

–50

5556 G21

–40°C

–10°C

25°C

55°C

85°C

105°C

FULL

PWR

RED.

PWR

VCC SUPPLY VOLTAGE (V)

3.1

3.2

3.3

3.4

3.5

3.6

250

275

300

325

350

375

400

425

450

475

500

5556 G22

–40°C

–10°C

25°C

55°C

85°C

105°C

VCC SUPPLY VOLTAGE (V)

3.1

3.2

3.3

3.4

3.5

3.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

5556 G23

3dB IF ATTEN

FULL PWR MODE

85°C

25°C

–40°C

CONVERSION GAIN (dB)

5 5.2 5.4 5.6 5.8 6 6.2 6.4 6.6 6.8 7

5556 G24

3dB IF ATTEN

FULL PWR MODE

85°C

25°C

–40°C

IIP3 (dBm)

20.6

21.6

22.6

23.6

24.6

25.6

5556 G25

3dB IF ATTEN

FULL PWR MODE

85°C

25°C

–40°C

SSB NF (dB)

13 13.5 14 14.5 15 15.5 16 16.5 17

5556 G26

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