LA4590W View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

View to exact match

LA4590W

1.5 V Stereo Headphone Preamplifier and Power Amplifier

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Symbol

VDC (V)

37

POWER MUTE SW

41

LOW BOOST SW

LA4590W

Equivalent circuit

Unit (resistance: Ω, capacitance: F)

Pin function

• Muting is turned on by grounding pin 37.

• Low boost is turned on by setting pin 41

floating.

38

POWER SW

39

FWD/REV SW

40

METAL SW

42

PRE MUTE SW

43

R.F1 SW

44

R.F REF

1.13

• Turns on IC power when grounded.

• Forward is selected when pin 39 is floating,

reverse when grounded.

• Metal is selected when pin 40 is floating.

• Muting is turned on when pin 42 is floating.

• R.F1 (pin 1) is turned on when pin 43 is

grounded.

• The R.F. reference. The R.F. SVRR can be

changed with an external capacitor.

46

R.F BASE2

0.5

48

R.F BASE1

• External PNP transistor base drive pins.

No. 4468-8/19

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