Typical operating characteristics (continued) – Rainbow Electronics MAX19998 User Manual

Page 13

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SiGe, High-Linearity, 2300MHz to 4000MHz

Downconversion Mixer with LO Buffer

MAX19998

______________________________________________________________________________________ 13

Typical Operating Characteristics (continued)

(Typical Application Circuit with tuning elements outlined in Table 1, V

CC

= 3.3V, f

RF

= 3100MHz to 3900MHz, LO is low-side injected

for a 300MHz IF, P

RF

= -5dBm, P

LO

= 0dBm, T

C

= +25NC, unless otherwise noted.)

3RF - 3LO RESPONSE

vs. RF FREQUENCY

RF FREQUENCY (MHz)

3RF - 3LO RESPONSE (dBc)

55

60

65

70

75

50

MAX19998 toc44

3800

3600

3400

3200

3000

4000

V

CC

= 3.3V

P

RF

= -5dBm

T

C

= -40°C, +25°C, +85°C

3RF - 3LO RESPONSE

vs. RF FREQUENCY

RF FREQUENCY (MHz)

3RF - 3LO RESPONSE (dBc)

55

60

65

70

75

50

MAX19998 toc45

3800

3600

3400

3200

3000

4000

V

CC

= 3.3V

P

RF

= -5dBm

P

LO

= -3dBm, 0dBm, +3dBm

3RF - 3LO RESPONSE

vs. RF FREQUENCY

RF FREQUENCY (MHz)

3RF - 3LO RESPONSE (dBc)

55

60

65

70

75

50

MAX19998 toc46

3800

3600

3400

3200

3000

4000

P

RF

= -5dBm

V

CC

= 3.6V

V

CC

= 3.3V

V

CC

= 3.0V

NOISE FIGURE vs. RF FREQUENCY

RF FREQUENCY (MHz)

NOISE FIGURE (dB)

8

9

10

11

12

7

MAX19998 toc47

3800

3600

3400

3200

3000

4000

V

CC

= 3.3V

T

C

= +85NC

T

C

= +25NC

T

C

= -40NC

NOISE FIGURE vs. RF FREQUENCY

RF FREQUENCY (MHz)

NOISE FIGURE (dB)

8

9

10

11

12

7

MAX19998 toc48

3800

3600

3400

3200

3000

4000

V

CC

= 3.3V

P

LO

= -3dBm, 0dBm, +3dBm

NOISE FIGURE vs. RF FREQUENCY

RF FREQUENCY (MHz)

NOISE FIGURE (dB)

8

9

10

11

12

7

MAX19998 toc49

3800

3600

3400

3200

3000

4000

V

CC

= 3.0V, 3.3V, 3.6V

INPUT P

1dB

vs. RF FREQUENCY

MAX19998 toc50

INPUT

P

1d

B

(dBm)

7

8

9

6

RF FREQUENCY (MHz)

3800

3600

3400

3200

3000

4000

T

C

= +85NC

T

C

= -40NC

T

C

= +25NC

V

CC

= 3.3V

INPUT P

1dB

vs. RF FREQUENCY

MAX19998 toc51

INPUT

P

1d

B

(dBm)

7

8

9

6

RF FREQUENCY (MHz)

3800

3600

3400

3200

3000

4000

P

LO

= -3dBm, 0dBm, +3dBm

V

CC

= 3.3V

INPUT P

1dB

vs. RF FREQUENCY

MAX19998 toc52

INPUT

P

1d

B

(dBm)

7

8

9

6

RF FREQUENCY (MHz)

3800

3600

3400

3200

3000

4000

V

CC

= 3.3V

V

CC

= 3.6V

V

CC

= 3.0V

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