4

521 - 17 - 00

10k

5

VIDEO OUTPUT

TO NETWORK

ANALYSER I/P

0.01

+5V

75

*10

0.1

GB4571

3

8

6

1

4

2

7

+5V

5

NETWORK

ANALYSER

Sweep: 1-100MHz

Level: 0dBM

0.1

+5V

+5V

4

1

8

5

0.1

0.1

CLC110

All resistors in ohms, all capacitors in microfarads unless otherwise stated.

Differential Gain and Differential Phase tests.

FREQUENCY (MHz)

6.0

4.0

2.0

0.0

-2.0

1

10

100

Fig. 3 Gain vs Frequency

R

S

= ø

C

L

= 82pF

C

L

= 270pF

C

L

= 180pF

Fig. 2 Frequency Response Test Circuit

GB4571 TYPICAL PERFORMANCE CURVES

C

L

= 68pF

C

L

= 120pF

0.1

0.05

0

-0.05

-0.1

-0.15

-0.2

1

10

100

FREQUENCY (MHz)

Fig. 5 Flattened Frequency Response

R

C

L

= 15pF

R

S

= ø

C

L

= 180pF

C

L

= 120pF

1

0

-1

-2

-3

-4

-5

-6

-7

-8

C

L

= 270pF

C

L

= 100pF

C

L

= 82pF

Fig. 4 Phase vs Frequency

FREQUENCY (MHz)

2

10

2

10

-0.5

-1

-1.5

-2

-2.5

-3.0

-3.5

-4

FREQUENCY (MHz)

Fig. 6 Phase vs Frequency

R

C

L

= 15pF

R

C

L

= 18pF