MAX9995(2011) Просмотр технического описания (PDF) - Maxim Integrated

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MAX9995
(Rev.:2011)

Dual, SiGe, High-Linearity, 1700MHz to 2700MHz Downconversion Mixer with LO Buffer/Switch

Maxim Integrated 

Dual, SiGe, High-Linearity, 1700MHz to 2700MHz

Downconversion Mixer with LO Buffer/Switch

AC ELECTRICAL CHARACTERISTICS—fRF = 2540MHz

(Typical Application Circuit, RF and LO ports are driven from 50Ω sources, fRF > fLO, VCC = 5.0V, PRF = -5dBm, PLO = 0dBm, fRF =

2540MHz, fLO = 2400MHz, fIF = 140MHz, TC = +25°C, unless otherwise noted.) (Note 7)

PARAMETER

Conversion Gain

Input Third-Order Intercept Point

2RF - 2LO Spurious Response

3RF - 3LO Spurious Response

LO Leakage at IF Port

RF-to-IF Isolation

SYMBOL

GC

IIP3

2x2

3x3

CONDITIONS

Two tones: fRF1 = 2540MHz, fRF2 = 2541MHz,

PRF = -5dBm/tone

PRF = -10dBm

PRF = -5dBm

PRF = -10dBm

PRF = -5dBm

MIN TYP MAX UNITS

5.2

dB

24.6

dBm

58

dBc

63

72

dBc

82

-45

dBm

49

dB

Channel-to-Channel Isolation

PRF = -10dBm, RFMAIN (RFDIV) power

measured at IFDIV (IFMAIN), relative to IFMAIN

48

dB

(IFDIV), all unused ports terminated at 50Ω

Note 5: Operation outside this frequency band is possible but has not been characterized. See the Typical Operating Characteristics.

Note 6: Guaranteed by design and characterization.

Note 7: All limits reflect losses of external components. Output measurements taken at IF outputs of Typical Application Circuit.

Note 8: Production tested.

Note 9: Two tones 3MHz spacing, -5dBm per tone at RF port.

Note 10: Measured at IF port at IF frequency. fLO1 and fLO2 are offset by 1MHz.

Note 11: IF return loss can be optimized by external matching components.

Typical Operating Characteristics

(Typical Application Circuit, VCC = 5.0V, PRF = -5dBm, PLO = 0dBm, LO is low-side injected for a 200MHz IF, TC = +25°C.)

CONVERSION GAIN vs. RF FREQUENCY

8.0

7.5

7.0

TC = -20°C

6.5

6.0

5.5

TC = +25°C

5.0

4.5

TC = +85°C

4.0

3.5

3.0

1700 1800 1900 2000 2100 2200

RF FREQUENCY (MHz)

CONVERSION GAIN vs. RF FREQUENCY

6.5

6.4

PLO = -3dBm to +3dBm

6.3

6.2

6.1

6.0

5.9

5.8

5.7

5.6

5.5

1700 1800 1900 2000 2100 2200

RF FREQUENCY (MHz)

CONVERSION GAIN vs. RF FREQUENCY

6.5

6.4

6.3

VCC = 4.75V

6.2

6.1

6.0

5.9

VCC = 5.0V

5.8

5.7

5.6 VCC = 5.25V

5.5

1700 1800 1900 2000 2100 2200

RF FREQUENCY (MHz)

4 _______________________________________________________________________________________

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