IS31AP4913-QFLS2-TR Datasheet IS31AP4913-QFLS2-TR | P1-P3

IS31AP4913

Integrated Silicon Solution, Inc. – www.issi.com 1

Rev. C, 12/25/2013

3D AND BASS ENHANCEMENT STEREO HEADPHONE DRIVER

December 2013

GENERAL DESCRIPTION

The IS31AP4913 is a stereo headphone driver

designed to allow the removal of the output

DC-blocking capacitors for reduced component count

and cost. The IS31AP4913 is ideal for small portable

electronics where size and cost are in concerns.

The IS31AP4913 also features 3D and bass

enhancement which can be externally adjusted by a

simple RC network.

IS31AP4913 is available in QFN-20 (3mm × 3mm)

packages. It operates from 2.7V to 5.5V over the

temperature range of -40°C to +85°C.

FEATURES

 No output DC-blocking capacitors

 Bass enhancement

 3D enhancement

 Low output noise (8µV)

 High SNR (102dB)

 -92dB PSRR

 Pulse Count Control serial interface

 Thermal protection circuit

 Integrated click-and-pop suppression circuitry

 QFN-20 (3mm × 3mm) package

APPLICATIONS

 Cellular handsets and PDAs

 Notebook PC

 MP3

 Portable gaming

TYPICAL APPLICATION CIRCUIT

Figure 1 Typical Application Circuit

Note: The SGND and PGND pins of the IS31AP4913 must be routed separately back to the decoupling capacitor in order to provide proper

device operation. If the SGND and PGND pins are connected directly to each other, the part will function without the risk of failure, but the noise

and THD performance do not meet the specifications.

IS31AP4913

Integrated Silicon Solution, Inc. – www.issi.com 2

Rev. C, 12/25/2013

PIN CONFIGURATION

Package Pin Configuration (Top View)

QFN-20

4 12

5 11 CTRL

VCC

VREF

OUTR

OUTL

3DR

3DL

INL

INR

INFR

PIN DESCRIPTION

No. Pin Description

1 INFR Right channel feedback loop in.

2 INR Right channel audio input.

3 3DR 3D control input.

4 3DL 3D control input.

5 INL Left channel audio input.

6 BASSL Left channel bass control out.

7 INFL Left channel feedback loop in.

8, 9 NC No connection.

10 SGND Signal Ground.

11 CTRL Shutdown and 3D/Bass enable control terminal.

12 VCC Supply voltage.

13 VREF

Internal produced supply voltage for charge pump and

audio power amplifier.

14 OUTR Right channel audio output.

15 OUTL Left channel audio output.

16 CP Charge pump flying capacitor positive terminal.

17 PGND Power ground.

18 VSS Output from charge pump.

19 CN Charge pump flying capacitor negative terminal.

20 BASSR Right channel bass control out.

Thermal Pad Connect to GND.

IS31AP4913

Integrated Silicon Solution, Inc. – www.issi.com 3

Rev. C, 12/25/2013

ORDERING INFORMATION

Industrial Range: -40°C to +85°C

Order Part No. Package QTY/Reel

IS31AP4913-QFLS2-TR QFN-20, Lead-free 2500

timewithoutnotice.ISSIassumesnoliabilityarisingoutoftheapplicationoruseofanyinformation,productsorservicesdescribedherein.Customersare

advisedto

obtainthelatestversionofthisdevicespecificationbeforerelyingonanypublishedinformationandbeforeplacingordersforproducts.

IntegratedSiliconSolution,Inc.doesnotrecommendtheuseofanyofitsproductsinlifesupportapplicationswherethefailureormalfunctionofthe

productcanreasonablybeexpected

tocausefailureofthelifesupportsystemortosignificantlyaffectitssafetyoreffectiveness.Productsarenot

authorizedforuseinsuchapplicationsunlessIntegratedSiliconSolution,Inc.receiveswrittenassurancetoitssatisfaction,that:

a.)theriskofinjuryordamagehasbeenminimized;

b.)theuserassume

allsuchrisks;and

c.)potentialliabilityofIntegratedSiliconSolution,Incisadequatelyprotectedunderthecircumstances

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IS31AP4913-QFLS2-TR

Mfr. #:

Buy IS31AP4913-QFLS2-TR

Manufacturer:

ISSI

Description:

Audio Amplifiers Hi Quality Stereo Headphone Drvr

Lifecycle:

New from this manufacturer.

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IS31AP4913-QFLS2-TR