beautypg.com

Typical operating characteristics (continued) – Rainbow Electronics MAX2063 User Manual

Page 12

background image

MAX2063

Dual 50MHz to 1000MHz High-Linearity,

Serial/Parallel-Controlled Digital VGA

12

Typical Operating Characteristics (continued)

(Typical Application Circuit, V

CC

= V

CC_AMP_1

= V

CC_AMP_2

= V

CC_RG

= 3.3V, attenuators are set for maximimum gain, RF ports are

driven from 50ω sources, AMPSET = 1, PD_1 = PD_2 = 0, P

IN

= -20dBm, f

RF

= 350MHz, T

C

= +25°C, unless otherwise noted.)

3RD HARMONIC vs. RF FREQUENCY

MAX2063 toc47

RF FREQUENCY (MHz)

3RD HARMONIC (dBc)

850

650

450

250

50

60

70

80

40

50

1050

V

CC

= 3.3V

V

CC

= 3.465V

V

CC

= 3.135V

P

OUT

= 3dBm

3RD HARMONIC vs. ATTENUATOR STATE

MAX2063 toc48

ATTENUATOR STATE (dB)

3RD HARMONIC (dBc)

24

20

16

12

8

4

55

60

65

70

50

0

28

T

C

= +85°C

T

C

= +25°C

T

C

= -40°C

V

CC

= 3.3V

P

OUT

= 3dBm

RF = 350MHz

OUTPUT IP2 vs. RF FREQUENCY

MAX2063 toc49

RF FREQUENCY (MHz)

OUTPUT IP2 (dBm)

850

650

450

250

30

40

50

60

70

20

50

1050

T

C

= -40°C

T

C

= +25°C

T

C

= +85°C

V

CC

= 3.3V

P

OUT

= 0dBm/TONE

OUTPUT IP2 vs. ATTENUATOR STATE

MAX2063 toc51

ATTENUATOR STATE (dB)

OUTPUT IP2 (dBm)

24

20

16

12

8

4

40

50

60

70

30

0

28

T

C

= +85°C

T

C

= +25°C

T

C

= -40°C

RF = 350MH

Z

V

CC

= 3.3V

P

OUT

= 0dBm/TONE

OUTPUT IP2 vs. RF FREQUENCY

MAX2063 toc50

RF FREQUENCY (MHz)

OUTPUT IP2 (dBm)

850

650

450

250

30

40

50

60

70

20

50

1050

V

CC

= 3.135V

V

CC

= 3.3V

V

CC

= 3.465V

P

OUT

= 0dBm/TONE

3RD HARMONIC vs. RF FREQUENCY

MAX2063 toc46

RF FREQUENCY (MHz)

3RD HARMONIC (dBc)

850

650

450

250

50

60

70

80

40

50

1050

T

C

= +85°C

T

C

= +25°C

T

C

= -40°C

V

CC

= 3.3V

P

OUT

= 3dBm