BL6331CP datasheet(1/12 Pages) BELLING

номер детали	BL6331CP

подробное описание детали	Optimized PWM Output Stage Eliminates LC Output Filter

PDF	12 Pages

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производитель	BELLING [SHANGHAI BELLING CO., LTD.]

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BL6331

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BL6331

MONAURAL 3W Non-Clip DIGITAL AUDIO POWER AMPLIFIER

Features

Professional non-clip output control function:

Maximum non-clip output

800mW(VDD=4.2v, RL=8Ω,NC1 mode)

Four mode can be selected with CTRL

terminal: NC1( NonClip1), NC2 (nonClip2),

NC_OFF (NonClip-off), shutdown

Maximum output (work in nonclip-off mode)

3W（VDD=5.0V, RL=4Ω, THD+N=10%）

0.82W（VDD=3.6V, RL=8Ω, THD+N=10%）

THD+N

0.06% (VDD = 3.6V, RL=8Ω, PO=0.4W, 1kHZ)

Efficiency With an 8

Speaker:

88% at 400 mW

80% at 150 mW

Optimized PWM Output Stage Eliminates LC

Output Filter

Improved PSRR (−75 dB) and Wide Supply

Voltage (2.5 V to 5.5 V) Eliminates Need

for

a Voltage Regulator

Over-current and Thermal Protection function

Low voltage Malfunction prevention function

Available in space-saving package:

9-bump WLCSP

Applications

Mobile phone, PDA

MP3/4, PMP, GPS

Portable electronic devices

Pin Diagrams

1

2

3

A

B

C

top view

IN+

VDD

VO+

GND

VREF

PGND

IN-

CTRL

VO-

General Description

BL6331 is a 3-W (VDD=5.0V, RL=4Ω) high efficiency

filter-free class-D audio power amplifier in a wafer

chip scale package (WLCSP)

.

BL6331 has a “Professional non-clip output control

circuit” which reducing distortion of output signal due

to either the over level input signal or power supply

voltage down with battery,

Features like 88% efficiency, −75dB PSRR, and

improved RF-rectification immunity make the BL6331

ideal for cellular handsets. In cellular handsets, the

earpiece, speakerphone, and melody ringer can each

be driven by the BL6331.

Application Circuit

BL6331

differential

input

CIN

33nF

CIN

33nF

Rctrl1

Rctrl2

Cctrl

Rctrl3

CTRL1

CTRL2

C1

1.0uF

C2

1.0uF

0.1uF

IN+

IN-

CTRL

VREF

VDD

AGND

PGND

VO+

VO-

Pin Description

Notice: CTRL terminal function is described in page 4.

PIN #

Name

Description

A1

IN+

Positive differential input

A2

VDD

Power Supply

A3

VO+

Positive BTL output

B1

AGND Analog Ground

B2

VREF Bypass capacitor connected

B3

PGND Power Ground

C1

IN-

Negative differential input

C2

CTRL Mode select

C3

VO-

Negative BTL output

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