LTC5556

6

Rev 0

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l

denotes the specifications which apply over the full operating

unless otherwise noted. Test circuit shown in Figure 1. (Notes 3, 4, 5)

2.2GHz to 3.2GHz RF Input Matching (See Figure 1): RF = 2.6GHz, IF = 270MHz, Low Side LO

PARAMETER

CONDITIONS

FULL PWR

REDUCED PWR

UNITS

MIN

TYP

MAX

TYP

RF Input Return Loss

>10

>10

LO to RF Leakage

LO = 1.4GHz to 3.8GHz

<–50

<–50

Power Conversion Gain

0dB IF ATTEN

6dB IF ATTEN

12dB IF ATTEN

9.2

3.1

–2.9

8.7

2.6

–3.4

dB

dB

dB

Conversion Gain Flatness

RF = 2.6GHz ±100MHz, LO = 2.33GHz

±0.14

±0.14

dB

Conversion Gain vs Temperature

l

–0.012

–0.012

dB/°C

Two-Tone Input 3rd Order Intercept

0dB IF ATTEN

6dB IF ATTEN

12dB IF ATTEN

26.6

24.5

24.0

19.2

20.4

20.7

dBm

dBm

dBm

Two-Tone Input 2nd Order Intercept

0dB to 15.5dB IF ATTEN

59

51

dBm

SSB Noise Figure

0dB IF ATTEN

6dB IF ATTEN

12dB IF ATTEN

13.4

16.5

20.9

12.7

16.2

21.2

dB

dB

dB

Input 1dB Compression

0dB IF ATTEN

3dB IF ATTEN

6dB IF ATTEN

9dB IF ATTEN and Higher

9.3

11.4

12.3

12.5

8.2

10.3

10.9

11.0

dBm

dBm

dBm

dBm

Channel-to-Channel Isolation

RF = 2.6GHz

43

43

dB

1.5GHz to 2.1GHz RF Input Matching (See Figure 1): RF = 1.8GHz, IF = 270MHz, Low Side LO

PARAMETER

CONDITIONS

FULL PWR

REDUCED PWR

UNITS

MIN

TYP

MAX

TYP

RF Input Return Loss

>10

>10

dB

LO to RF Leakage

LO = 500MHz to 3GHz

<–55

≤–55

dBm

Power Conversion Gain

0dB IF ATTEN

6dB IF ATTEN

12dB IF ATTEN

8.7

2.6

–3.4

8.3

2.2

–3.8

dB

dB

dB

SSB Noise Figure

0dB IF ATTEN

6dB IF ATTEN

12dB IF ATTEN

12.6

16.1

21.0

12.1

16.0

21.2

dB

dB

dB

Two-Tone Input 3rd Order Intercept

0dB IF ATTEN

6dB IF ATTEN

12dB IF ATTEN

22.6

24.0

24.4

19.8

20.9

21.3

dBm

dBm

dBm

Channel-to-Channel Isolation

RF = 1.8GHz

46

46

dB

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The mixer output pins on this device are sensitive to ESD greater

than 1kV (HBM). Proper ESD handling precautions must be observed. All

other pins withstand 2kV.

Note 3: The LTC5556 is guaranteed functional over the –40°C to 105°C

case temperature range.

Note 4: SSB Noise Figure measured with a small-signal noise source,

bandpass filter and 2dB matching pad on RF input, and bandpass filter on

the LO input.

Note 5: Channel-to-channel isolation is defined as the relative IF output

power of channel 2 to channel 1, with the RF input signal applied to RF1

while the RF2 input is 50Ω terminated. Both channels are enabled and

programmed for 3dB IF attenuation.

Note 6: SPI timing guaranteed by design, not subject to test.