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NJU8752

Analog Signal Input Class D Amplifier for Piezo Speaker

Japan Radio Corporation  

NJU8752

PIN DESCRIPTION

No.

SYMBOL

I/O

Function

1

VDD

− Power Supply: VDD=3.3V

2

IN

I Signal Input

3

TEST 1

I

Maker test 1

This pin must be connected to GND.

4

MUTE

I

Mute Control

Low : Mute ON

High : Mute OFF

5

VSS

− Positive Power GND : VSS=0V

6

OUTP

O Positive Output

7

VDDO

− Positive Output Power Supply : VDDO=5.0V~13.75V

8

VDDO

− Negative Output Power Supply : VDDO=5.0V~13.75V

9

OUTN

O Negative Output

10

VSS

− Negative Power GND : VSS=0V

11

STBY

I

Standby Control

Low : Standby ON

High : Standby OFF

12

TEST 2

I

Maker test 2

This pin must be connected to GND.

13

COM

I Analog common

14

VSS

− Power GND : VSS=0V

*Pin No. 5(VSS),10(VSS) and 14(VSS) must be used at the same voltage level

*Pin No. 7(VDDO) and 8(VDDO) must be used at the same voltage level.

INPUT PINS STRUCTURE(MUTE, STBY, TEST1, TEST2)

VDD

Input Terminal

VSS

Inside Circuit

-2-

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