MAX13326 Maxim Integrated Products, MAX13326 Datasheet

MAX13326

Manufacturer Part Number

MAX13326

Description

Dual Automotive Audio Line Drivers

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX13326.pdf (20 pages)

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19-5136; Rev 0; 1/10

The MAX13325/MAX13326 dual audio line drivers provide

a reliable differential interface between automotive audio

components. The devices feature differential inputs and

outputs, integrated output diagnostics, and are controlled

using an I

The outputs can deliver up to 4V

The MAX13325 buffers analog audio signals for trans-

mission over long cable distances with a fixed gain of

12dB, whereas the MAX13326 provides a 0dB fixed

gain. The diagnostics on the outputs report conditions

on a per channel basis, including short to GND, short

to battery, overcurrent, overtemperature, and excessive

offset. The output amplifiers can drive capacitive loads

up to 4nF to ground and 3nF differentially.

The outputs are protected according to IEC 61000-4-2

Q8kV

MAX13325/MAX13326 are specified from

+105NC and are available in a 28-pin TSSOP package

with an exposed pad.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

MICROPROCESSOR

FROM AUDIO

100nF

SOURCE

Contact Discharge, and Q15kV Air Gap. The

Automotive Radio and Rear Seat Entertainment

Professional Remote Audio Amplifiers

2.2µF

C10

C interface or operate in stand-alone mode.

SHDN

MUTE

ADD1

ADD0

FLAG

INLM

INRM

Typical Operating Circuit

INLP

INRP

SDA

SCL

*OPTIONAL : NEEDED FOR AUTOMOTIVE LOAD DUMP PROTECTION ONLY

_______________________________________________________________ Maxim Integrated Products 1

DIGITAL CONTROL

C INTERFACE

+5V

AND

General Description

RIGHT

LEFT

Dual Automotive, Audio Line Drivers

MAX13325

MAX13326

DIAGNOSTIC

OUTPUT

RMS

470nF

CHARGE

PUMP

BIAS

Applications

CHOLD

PROTECTION

1 µ F

into 100I loads.

ESD

with I

OUTLP

OUTLM

OUTRP

PGND

BIAS

CSS

GND

OUTRM

* OPTIONAL

1kI

1nF

-40NC to

10µF

220nF

TRANSMISSION

LINE

TRANSMISSION

LINE

+12V

1µF

C Control and Diagnostic

S Comprehensive Programmability and Diagnostics

S Autoretry Function in Stand-Alone Mode

S Drive Capacitive Loads ≤ 3nF Differentially, ≤ 4nF

S 112dB Signal-to-Noise Ratio

S Low 0.002% THD at 4V

S High PSRR (70dB at 1kHz)

S High CMRR (80dB at 1kHz)

S Low Output Noise (3µV

S Excellent Channel-to-Channel Matching

S Load-Dump Transient Protection

S Protected Output Against Various Short-Circuit

S ESD Protection for ±8kV Contact Discharge,

S Long-Distance Drive Capability Typically Up to

S Noise-Rejecting Differential Inputs and Outputs

S Low-Power Shutdown Mode < 10µA

S Hardware or Software MUTE Function

S 28-Pin TSSOP Package with Exposed Pad

/V denotes an automotive qualified part.

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

**Future product—contact factory for availability.

MAX13325GUI/V+

MAX13326GUI/V+** 28 TSSOP-EP*

Using I

to Ground

Conditions

±15kV Air Gap

15m or Greater

PART

C Interface

PIN-

PACKAGE

28 TSSOP-EP*

Ordering Information

RMS

into 2.7kI Loads

), MAX13326

www.DataSheet4U.com

-40NC to

RANGE

+105NC

TEMP

Features

GAIN

(dB)

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