VCA824_16 datasheet(13/41 Pages) TI1

部件名	VCA824

功能描述	Ultra-Wideband, > 40-dB Gain Adjust Range, Linear in V/V Variable Gain Amplifier

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制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

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13 / 41 page

30

20

10

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

Frequency(Hz)

1M

10M

100M

1G

V =2V

O

PP

InputReferred

V = -1V

G

V =+1V

G

0.4

0.3

0.2

0.1

0

-0.1

-0.2

-0.3

-0.4

2.0

1.5

1.0

0.5

0

-0.5

-1.0

-1.5

-2.0

Time(40ns/div)

InputVoltage

LeftScale

OutputVoltage

RightScale

A

=+10V/V

VMAX

V

G = -0.3V

5

4

3

2

1

0

-1

-2

-3

-4

-5

OutputCurrent(mA)

-150

-100

-50

150

0

50

100

25W

Load

1WInternal

Power

Dissipation

1WInternal

Power

Dissipation

100W

Load

50W

Load

1.5

1.0

0.5

0

-0.5

-1.0

Time(10ns/div)

3

2

1

0

-1

V

IN =0.2VDC

3

0

-3

-6

-9

-12

-15

Frequency(Hz)

1M

10M

100M

1G

V

+10mV

G

DC

PP

=0V

V

=0.1V

IN

DC

11

10

9

8

7

6

5

4

3

2

1

0

-1

GainControlVoltage(V)

-1.2

-0.8

-0.4

0

0.4

0.8

1.2

VCA824

www.ti.com

SBOS394D – NOVEMBER 2007 – REVISED JANUARY 2016

Typical Characteristics: VS = ±5 V, AVMAX = 10 V/V (continued)

At TA = 25°C, RL = 100 Ω, RF = 402 Ω, RG = 80 Ω, VG = 1 V, and VIN = single-ended input on +VIN with –VIN at ground, unless

otherwise noted.

Figure 35. Gain vs Gain Control Voltage

Figure 36. Gain Control Frequency Response

Figure 37. Gain Control Pulse Response

Figure 38. Output Voltage and Current Limitations

Figure 40. IRG Limited Overdrive Recovery

Figure 39. Fully-Attenuated Response

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Product Folder Links: VCA824

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