GT4123 View Datasheet(PDF) - Gennum -> Semtech

Part Name

Description

View to exact match

GT4123

Two Channel Video Multipliers

Gennum -> Semtech 

FROM

NETWORK

ANALYSER

GT4123 / GT4123A TEST CIRCUITS

+10V

0.1

+5V

78

4

0.1

1

75

DUT 1

4 CLC110 8

0.1

5

5

6

3

10k

75

0.1

-5V

TO

NETWORK

ANALYSER

0.1

-10V

All resistors in ohms, all capacitors in µF unlesss otherwise stated.

VSIG = 1VP-P + 0.5V BIAS (100 kHz to 10 MHz)

Fig. 2 Crossfade Balance

+10V

0.1

FROM

NETWORK

ANALYSER

78

4

2

5 - 30pF

+5V

680

75

DUT

0.1

1

56

1

3

4 CLC110 8

0.1

5

75

10k

TO

NETWORK

ANALYSER

0.1

-5V

0.1

B

-10V

A

+1V

All resistors in ohms, all capacitors

in µF unlesss otherwise stated.

Fig. 3 Frequency Response, Crosstalk & Differential Gain & Phase

(+12V)

+10V

(-5V)

-10V

0.1

0.1

VA

75

VB

75

VC

8

6

GT4123

(GT4123A)

5

1

7

4

32

6dB AMPLIFIER

VIDEO OUT

75

All resistors in ohms, all capacitors

in µF unlesss otherwise stated.

680

5-30 pF

Fig. 4 Typical Application Circuit

5

520 - 38 - 3

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