LTC5588-1

10

55881fb

and 5.5MHz for OIP3 and OIP2, or else baseband input frequency = 100kHz, I and Q 90° shifted, lower sideband selection, LINOPT pin

floating, unless otherwise noted. Test circuit is shown in Figure 8.

Output IP3 vs LINOPT Voltage

Output IP3 vs LINOPT Voltage

LINOPT VOLTAGE (V)

2.0

10

20

30

40

2.5

3.0

55881 G37

3.5

3.3V, 85°C

3.3V, 25°C

3.15V, 25°C

3.45V, 25°C

3.3V, –40°C

5 PARTS SHOWN

LINOPT VOLTAGE (V)

2.0

10

20

30

40

2.5

3.0

55881 G38

3.5

3.3V, 85°C

3.3V, 25°C

3.15V, 25°C

3.45V, 25°C

3.3V, –40°C

5 PARTS SHOWN

Gain Distribution at 2140MHz

GAIN (dB)

–0.6

–0.4

–0.2

0

0.2

0.4

0.6

30

40

50

55881 G39

20

10

0

85°C

25°C

–40°C

Output IP3 Distribution at 2140MHz

LO Feedthrough Distribution at

2140MHz

Image Rejection Distribution at

2140MHz

OIP3 (dBm)

30.4

31.2

32

32.8

33.6

34.4

0

10

20

30

55881 G40

85°C

25°C

–40°C

NOTE 12

LO FEEDTHROUGH (dBm)

–44

–42

–43

–41

–40

–39

–38

–37

0

10

20

30

55881 G41

85°C

25°C

–40°C

IMAGE REJECTION (dBc)

–44

–42

–43

–41

–40

–39

–38

–37

0

10

20

40

30

55881 G41

85°C

25°C

–40°C

Output Noise Floor Distribution at

2140MHz

Output Noise Floor vs RF Output

Power and LOM Port Input Power

NOISE FLOOR (dBm/Hz)

–161.2

–160.4

–160.8

–159.6

–160.0

0

20

40

60

10

30

50

55881 G43

85°C

25°C

–40°C

RF OUTPUT POWER (dBm)

–15

–145

–140

–135

5

55881 G44

–150

–155

–160

–10

–5

0

10

–10dBm

–5dBm

0dBm

5dBm

10dBm

15dBm

Output Noise Floor vs RF Output

Power and Differential LO Input

RF OUTPUT POWER (dBm)

–15

–145

–140

–135

5

55881 G45

–150

–155

–160

–10

–5

0

10

–10dBm

–5dBm

0dBm

5dBm

10dBm

15dBm

20dBm

LO BALUN =

USING BD1631J50100A