FAN7031 Fairchild Semiconductor, FAN7031 Datasheet

FAN7031

Manufacturer Part Number

FAN7031

Description

2W Stereo Power Amplifier with Four Selectable Gain Setting and Headphone Drive

Manufacturer

Fairchild Semiconductor

Datasheet

1.FAN7031.pdf (20 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

FAN7031MTFX

Manufacturer:

FAIRCHILD/仙童

Quantity:

20 000

Current page: 1 of 20
Download datasheet (476Kb)

Features

• 1.85W

• Selectable Gain Via Internal Gain Control Circuit Which

• Low Quiescent Current : Typical 5.5mA@5V

• Low Shutdown Current : Typical 0.04µA@5V

• Fully Differential Input, Which Immunes the Common

• Stereo Headphone Drive

• Active Low Shutdown Logic

• Guaranteed Stability Under No Load Condition

• Thermally Enhanced Surface-Mount 20TSSOP-EP

FAN7031

2W Stereo Power Amplifier with Four Selectable

Gain Setting and Headphone Drive

4Ω Load With Less Than 1% and 10% THD+N,

Respectively

Eliminates External Gain Setting Resistors : 6dB, 10.3dB,

15.6dB, 21.6dB(Select)

Mode Noise

Package

RMS

and 2.45W

RMS

Power Per Each Channel Into

Description

The FAN7031 is a dual fully differential power amplifier in a

20-pin TSSOP-EP thermally enhanced package. When

delivering 1.85W of continuous RMS power into 4Ω speaker

at 5V supply, the FAN7031 has less than 1% of THD+N over

the entire audible frequency range, 20Hz to 20kHz. To save

power consumption in the portable applications, the

FAN7031 provides shutdown function. Setting the shutdown

pin to ground level, the FAN7031 falls into shutdown mode

and consumes less than 4µA over all supply voltage range,

2.7V to 5.5V. Two gain setting pins(G0 and G1) control the

gain of the FAN7031. The gain is selectable to 6dB, 10dB,

15.6dB and 21.6dB. The FAN7031 provides the single-

ended(SE) operation by setting SE/BTL pin to above V

Using SE/BTL pin and a mechanical switch which provides

at the headphone jack, SE mode and BTL mode are automat-

ically determined. Additional components such as resistors

for gain setting and bootstrap capacitors are not needed,

making the FAN7031 well suited for portable sound systems

and other hand-held sound equipment. Target applications

include notebook and desktop computers and portable audio

equipment.

20-TSSOP-EP

www.fairchildsemi.com

Rev. 1.0.1

/2.

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