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LM49990 Devices Not on a TI Datasheet

Could you please confirm why the following do not show up on a TI datasheet, even though they are active devices:

 

#

Material

Old Material

LPN

Chip Name

SBE

SBE 1

SBE 2

CTECH

PR Technology

Pin

Package

X Chain

3

LME49990SD/NOPB

LME49990SDNOPB

LME49990SD/NOPB

GLLME49990ADA

HPA

AIP

PORTABLE AUDIO

CBC30

CBC30.1

8

NKQ

4

LME49990SDE/NOPB

LME49990SDDC1R

LME49990SDE/NOPB

GLLME49990ADA

HPA

AIP

PORTABLE AUDIO

CBC30

CBC30.1

8

NKQ

5

LME49990SDX/NOPB

LME49990SDRASN

LME49990SDX/NOPB

GLLME49990ADA

HPA

AIP

PORTABLE AUDIO

CBC30

CBC30.1

8

NKQ

Thanks,

Vinay