520 - 25 - 4

5

Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement.

© Copyright April 1991 Gennum Corporation. All rights reserved. Printed in Canada.

DOCUMENT

IDENTIFICATION

PRODUCT PROPOSAL

This data has been compiled for market investigation purposes

only, and does not constitute an offer for sale.

ADVANCE INFORMATION NOTE

This product is in development phase and specifications are

subject to change without notice. Gennum reserves the right to

remove the product at any time. Listing the product does not

constitute an offer for sale.

PRELIMINARY DATA SHEET

The product is in a preproduction phase and specifications are

subject to change without notice.

DATA SHEET

The product is in production. Gennum reserves the right to make

changes at any time to improve reliability, function or design, in

order to provide the best product possible.

CAUTION

ELECTROSTATIC

SENSITIVE DEVICES

DO NOT OPEN PACKAGES OR HANDLE

EXCEPT AT A STATIC-FREE WORKSTATION

FREQUENCY (MHz)

-20

-30

-40

-50

-60

-70

-80

-90

100

1

10

100

CH-A

CH-B

1

60

0.5

0.4

0.3

0.2

0.1

0.0

-0.1

-0.2

-0.3

-0.4

-0.5

110

60

FREQUENCY (MHz)

CH-B

CH-A

Fig. 3 Crosstalk vs Frequency

Fig. 2 Frequency Response

FREQUENCY (MHz)

0.03

0.02

0.01

0.00

-0.01

-0.02

-0.03

13

5

10

dg

dp

Fig. 4 Differential Gain & Phase vs Frequency

1

10

-20

-30

-40

-50

-60

-70

-80

-90

-100

13

5

10

REF = 1Vp-p (0dB)

FREQUENCY (MHz)

Fig. 5 Crossfade Balance vs Frequency

TYPICAL PERFORMANCE CURVES FOR GT4122

(Unless otherwise shown, V