LA4587M datasheet(7/18 Pages) SANYO

Part #	LA4587M

Description	Preamplifier Power Amplifier for 1.5 V Headphone Stereos

PDF	18 Pages

Scroll/Zoom	100%

Manufacturer	SANYO [Sanyo Semicon Device]

Direct Link	https://www.sanyo-av.com/us/

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7 / 18 page

Continued from preceding page.

Unit (resistance:

Ω, capacitance: F)

Pin No.

Pin name

Pin voltage

[V]

Internal equivalent circuit

Remarks

METAL1

METAL2

c Connected to GND through

3.9 k

Ω in metal on mode (pin

40: floating)

AMSS IN1

AMSS IN2

0.75

c AMSS inverting input

connection.

c An external input resistor is

required.

PRE REV IN1

PRE REV IN2

PRE FWD IN2

PRE FWD IN1

0.75

b Pins 29 and 30 turn on in

REV mode (pin 39: GND).

c Pins 31 and 32 turn on in

FWD mode (pin 39: floating)

c When not using the head, a

bias resistor (2.2 k

Ω)is

required between these pins

and VREF (pin 33).

c An anti-buzz capacitor is built

in.

VREF

0.75

c VREF amplifier output. Low

impedance is achieved due

to the output resistor (ro =

Ω).

c Inflow/outflow current:

200 µA max.

REF

0.75

c The VREF amplifier is

referenced hereto.

AMSS OUT

c Outputs a pulse waveform in

accordance with the AMSS

IN (pins 24 and 25) input

level.

Continued on next page.

LA4587M

No.5204-7/18

LA4587M Datasheet(PDF) 7 Page - Sanyo Semicon Device

LA4587M Datasheet(HTML) 7 Page - Sanyo Semicon Device

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