Datasheet > NJU8790

NJU8790

更新时间： 2024-09-18 12:26:03

品牌	Logo	应用领域
NJRC		放大器功率放大器
页数	文件大小	规格书
15页	361K
描述
Pushbutton Interface EVR with Class D Stereo Power Amplifier

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NJU8790 数据手册

NJU8790

Pushbutton Interface EVR with Class D Stereo Power Amplifier

GENERAL DESCRIPTION

PACKAGE OUTLINE

The NJU8790 is a pushbutton interface electronic volume

with class D stereo power amplifier. It includes input selector,

electronic volume, and limiter.

The NJU8790 can control the volume and the mode select

without the micro-controller by the pushbutton interface.

The NJU8790 is suitable for low power consumption and

simple control application such as mobile audio player, active

speaker and cradle speaker.

NJU8790V

FEATURES

OOperating Voltage

+2.7 to +5.5V

OLow operating current

10mA typ. (Active mode)

1µA max. (Stand-by mode)

2.7W+2.7W (V⁺= 5V, 4ohm, BTL)

OOutput power

OOutput filter-less

OPop-noise reduction circuit

OShort-circuit protection circuit

OSupply voltage monitoring circuit

O2-Input 1-Output selector

OPushbutton interface EVR 0 to -68dB, MUTE

OActive filter, limiter

(Single-end / Differential)

OCMOS Technology

OPackage Outline

SSOP44 (11 x 7.6 x 1.15mm, 0.5mm pitch)

BLOCK DIAGRAM

V⁺

Max

V⁺

Mid

V⁺

Power

indicator

Volume

indicator

Pow

Active filter

Power

Button

TEST

SWMODE PWSW SELOUTL VOLINL

PWIND

VOLIND2

VOLIND1

OUTL

EQ1L

EQ2L

IREF

VDD

VREF

GND

VDDL

VDDR

UVLO

NJU8790

IN1L

OUTLP

IN1G

2.7W(4ohm)

1.5W(8ohm)

Stereo

IN1R

OUTLN

OUTRP

Input

Selector

Electric

Volume

Limiter

IN2L

Class‐D Amp

+12dB typ.

IN2R

OUTRN

VSS Short

Protection

TEST1

SELSW

SELOUTR VOLINR VOLADJ ATTADJ

ATT UP

DOWN

OUTR

EQ1R

EQ2R

INT

SENSE

VSSL

VSSR

V⁺

Att

Active filter

Up Dn

V⁺V⁺

Input1/Input2

Initial Vol adjuster

Att. Level adjuster

‐12, ‐16, ‐20, ‐24 dB

‐10, ‐15, ‐20, Mute

NJU8790 Ver.6.1 E

- 1 -

12 3 4 5 6 7...15

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