VCA2619

SBOS276A − AUGUST 2003 − REVISED AUGUST 2003

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5

TYPICAL CHARACTERISTICS

At TA = 25°C and VDD = 5V, load resistance = 500Ω on each output to ground, differential output (2VPP) MGS = 111, and fIN = 5MHz, unless

otherwise noted.

GAIN vs VCA

VCA

0.2

1.0 1.2

0.8

0.4 0.6

2.0 2.2

1.4 1.6 1.8

2.4 2.6 2.8 3.0

46

42

38

34

30

26

22

18

14

10

6

2

−2

−6

−10

−14

MGS = 111

MGS = 010

MGS = 100

MGS = 011

MGS = 110

MGS = 101

GAIN ERROR vs VCA

CNTL

VCA

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

2.5

2.0

1.5

1.0

0.5

0

−0.5

−1.0

−1.5

−2.0

−2.5

−3.0

10MHz

5MHz

1MHz

GAIN MATCH: CHA to CHB, VCA

DeltaGain(dB)

45

40

35

30

25

20

15

10

5

0

GAIN ERROR vs TEMPERATURE

VCA

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

2.5

2.0

1.5

1.0

0.5

0

−0.5

−1.0

−1.5

−2.0

−2.5

−3.0

+25

_C

−40_C

+85

_C

GAIN ERROR vs VCA

CNTL

VCA

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

2.5

2.0

1.5

1.0

0.5

0

−0.5

−1.0

−1.5

−2.0

−2.5

−3.0

MGS = 010

MGS = 100

MGS = 111

GAIN MATCH: CHA to CHB, VCA

Delta Gain (dB)

45

40

35

30

25

20

15

10

5

0