NJU8758 datasheet(2/8 Pages) NJRC

Part #	NJU8758

Description	Analog Signal Input Monaural 1.5W Filterless Class D Power Amplifier

PDF	8 Pages

Scroll/Zoom	100%

Manufacturer	NJRC [New Japan Radio]

Direct Link	http://www.jrc.co.jp/eng/index.html

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2 / 8 page

NJU8758

- 2 -

Ver.2009-11-10

BLOCK DIAGRAM

PIN DESCRIPTION

SYMBOL

I/O

FUNCTION

VDD

Power supply : VDD=3.3V (*1)

Signal input

EQ1

I/O

for Active filter

EQ2

I/O

for Active filter

COM

Analog common

MUTEb

Mute control (*3)

MUTEb=Low: MUTE Mode

STBYb

Standby control (*3)

STBYb=MUTEb=Low: Standby Mode

TEST

TEST terminal for maker (*4)

VSS

Power GND : VSS=0V (*1)(*2)

OUTN

Negative output

VDDO

Output power supply : VDDO =3.3V (*1)

OUTP

Positive output

VSS

Power GND : VSS=0V (*1)(*2)

OUTTEST

Short Detect output

*1) The relations of ”VSS= 0V” and “VDD= VDDO” must be maintained.

*2) The VSS should be connected at a nearest point to the IC.

*3) The MUTEb and the STBYb must be connected to VDD, when these terminals are not used.

*4) The Test terminal must be connected to VSS.

SOFT

START

CONTROL

LOGIC

VDD

LOW BAT.

PROTECTION

COM

OSCILLATOR

OUTP

OUTN

VDD

VDDO

VSS

STBYb

MUTEb

PULSE

WIDTH

MODULATOR

LEVEL

SHIFTER

LEVEL

SHIFTER

VDDO

LOW BAT.

PROTECTION

BIAS

EQ1

EQ2

SHORT

PROTECTION

TEST

VSS

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