MP1740 datasheet(4/11 Pages) MPS

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MPS

CONFIDENTIAL

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MP1740 –3W HIGH EFFCIENCY MONO CLASS-D AUDIO AMPLIFIER

MPS CONFIDENTIAL AND PROPRIETARY INFORMATION – INTERNAL USE ONLY

MP1740MP1740 Rev. 1.0

1/5/2012

OPERATION CHARACTERISTICS

VCC=AVCC=PVCC=EN, AGND = PGND = 0V, signal frequency fs=1kHz, RI=150 Ω, Gain=2 V/V,

CI=2.2uF, T A = +25°C, unless otherwise noted.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

VCC=5.5V

2.82

VCC=5V

2.32

VCC=3.6V

1.16

THD+N=1%,

fS=1kHz,

RL=4Ω

VCC=2.5V

0.54

VCC=5.5V

3.62

VCC=5V

3.0

VCC=3.6V

1.51

THD+N=10%,

fS=1kHz,

RL=4Ω

VCC=2.5V

0.70

VCC=5.5V

1.65

VCC=5V

1.36

VCC=3.6V

0.71

THD+N=1%,

fS=1kHz,

RL=8Ω

VCC=2.5V

0.33

VCC=5.5V

2.12

VCC=5V

1.74

VCC=3.6V

0.91

Output Power

POUT

THD+N=10%,

fS=1kHz,

RL=8Ω

VCC=2.5V

0.42

POUT=2W, fS=1kHz,

RL=4Ω

VCC=5V

0.19%

POUT=1W, fS=1kHz,

RL=4Ω

VCC=3.6V

0.14%

POUT=0.4W, fS=1kHz,

RL=4Ω

VCC=2.5V

0.11%

POUT=1W, fS=1kHz,

RL=8Ω

VCC=5V

0.11%

POUT=0.5W, fS=1kHz,

RL=8Ω

VCC=3.6V

0.12%

Total Distorsion Plus

Noise

THD+N

POUT=0.2W, fS=1kHz,

RL=8Ω

VCC=2.5V

0.13%

Supply

Ripple

Rejection Ratio

KSVR

fRIPPLE=217Hz,

VRIPPLE=400mVpp,

input AC-ground with

CI=0.22μF

VCC=5V

-62

Signal to Noise Ratio

SNR

POUT=1W,

RL=8Ω

97.7

weighting

Output Noise

VCC=5V,

f=20

20kHz,

input

AC-

ground

with

CI=0.22μF

A-weighting

μVRMS

Common

Mode

Rejection Ratio

CMRR

VIC-RIPPLE=1 VPP,

fRIPPLE =217Hz

VCC=5V

-65

Start-up Time From

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