EV1740EC-00A

3W High Efficiency

Mono Class-D Audio Amplifer EV Board

EV1740EC-00A Rev.1.0

www.MonolithicPower.com

1

10/19/2011

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© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV1740EC-00A is the evaluation board for

the MP1740, a low-power mono BTL class-D

audio amplifier. It is one of MPS’s products in a

very small WLCSP package, high efficiency,

and full bridge output structure capable of

delivering 3W into 4Ω speaker.

The gain of this module is set at 2V/V, and can

be easily programmed by changing the input

resistors.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Supply Voltage

VIN

2.5 – 5.5

V

FEATURES

• 3W Into 4Ω with 5 V VIN @ 10% THD+N

• Up to 90% Efficiency

• 2.5V~5.5V Operation from a Single Supply

• Module gain is set at 2V/V

• THD+N = 0.1% @ 1.8W, 5V, 4Ω

• Internal 250kHz Switching frequency

• Low Noise (53μV Typical) with 5V VCC

• 2mA Quiescent Current and 0.5μA

Shutdown Current

• Internal thermal and short-circuit protection

• Internal depop circuitry

APPLICATIONS

• Wireless or Cellular Handsets·

• PDAs·

• Portable Audio

EV1740EC-00A EVALUATION BOARD

(L x W x H) 1.86” x 1.86” x 0.78”

(4.72cm x 4.72cm x 2.0cm)

Board Number

IC Number

EV1740EC-00A

MP1740

No Weighting

0.01

20

0.02

0.05

0.1

0.2

0.5

1

2

5

10

60m

4

100m 200m 300m 500m

1

2

3