MAX9778ETI+T datasheet, PDF - EEWORLD Datasheet

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MAX9778ETI+T: DescriptionIC amp audio pwr 2.6W AB 28tqfn; CategoryAnalog mixed-signal IC Consumption circuit; File Size1MB，27 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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MAX9778ETI+T Overview

IC amp audio pwr 2.6W AB 28tqfn

MAX9778ETI+T Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Maxim
Parts packaging code	QFN
package instruction	HVQCCN, LCC28,.2SQ,20
Contacts	28
Reach Compliance Code	compli
ECCN code	EAR99
Nominal bandwidth	22 kHz
Commercial integrated circuit types	AUDIO AMPLIFIER
JESD-30 code	S-XQCC-N28
JESD-609 code	e3
length	5 mm
Humidity sensitivity level	1
Number of channels	2
Number of functions	1
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Nominal output power	3 W
Package body material	UNSPECIFIED
encapsulated code	HVQCCN
Encapsulate equivalent code	LCC28,.2SQ,20
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260
power supply	5 V
Certification status	Not Qualified
Maximum seat height	0.8 mm
Maximum slew rate	32 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	5 mm

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19-0509; Rev 0; 4/06

Stereo 3W Audio Power Amplifiers with

Headphone Drive and Input Mux

General Description

The MAX9777/MAX9778 combine a stereo 3W bridge-

tied load (BTL) audio power amplifier, stereo single-

ended (SE) headphone amplifier, headphone sensing,

and a 2:1 input multiplexer all in a tiny 28-pin thin QFN

package. These devices operate from a single 4.5V to

5.5V supply and feature an industry-leading 100dB

PSRR, allowing these devices to operate from noisy

supplies without the addition of a linear regulator. An

ultra-low 0.002% THD+N ensures clean, low-distortion

amplification of the audio signal. Click-and-pop sup-

pression minimizes audible transients on power and

shutdown cycles. Power-saving features include low

4mV V

(minimizes DC current drain through the

speakers), low 13mA supply current, and a 10µA shut-

down mode. A MUTE function allows the outputs to be

quickly enabled or disabled.

A headphone sense input detects the presence of a

headphone jack and automatically configures the

amplifiers for either speaker or headphone mode. In

speaker mode, the amplifiers can deliver up to 3W of

continuous average power into a 3Ω load. In head-

phone mode, the amplifier can deliver up to 200mW of

continuous average power into a 16Ω load. The gain of

the amplifiers is externally set, allowing maximum flexi-

bility in optimizing output levels for a given load. The

amplifiers also feature a 2:1 input multiplexer, allowing

multiple audio sources to be selected. The multiplexer

can also be used to compensate for limitations in the

frequency response of the loud speakers by selecting

an external equalizer network. The various functions are

controlled by either an I

C-compatible (MAX9777) or

simple parallel control interface (MAX9778).

The MAX9777/MAX9778 are available in a thermally

efficient 28-pin thin QFN package (5mm x 5mm x

0.8mm). These devices have thermal-overload protec-

tion (OVP) and are specified over the extended -40°C

to +85°C temperature range.

♦

Features

Industry-Leading, Ultra-High 100dB PSRR

3W BTL Stereo Speaker Amplifier

200mW Stereo Headphone Amplifier

Low 0.002% THD+N

Click-and-Pop Suppression

ESD-Protected Outputs

Low Quiescent Current: 13mA

Low-Power Shutdown Mode: 10µA

MUTE Function

Headphone Sense Input

Stereo 2:1 Input Multiplexer

Optional 2-Wire, I

C-Compatible or Parallel

Interface

♦

Tiny 28-Pin Thin QFN (5mm

5mm

0.8mm)

Package

MAX9777/MAX9778

Ordering Information

PART

MAX9777ETI+

MAX9778ETI+

CONTROL

INTERFACE

C Compatible

Parallel

PIN-

PACKAGE

PKG

CODE

28 Thin QFN-EP* T2855-6

Note: All devices are specified over the -40°C to +85°C operat-

ing temperature range.

+Denotes lead-free package.

*EP = Exposed paddle.

Pin Configurations and Functional Diagrams appear at end

of data sheet.

Simplified Block Diagram

SINGLE SUPPLY

4.5V TO 5.5V

LEFT IN

Applications

Notebooks

Portable DVD Players

Tablet PCs

PC Audio Peripherals

Camcorders

Multimedia Monitor

LEFT IN

SE/

BTL

RIGHT IN

CONTROL

C-

COMPATIBLE

MAX9777

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX9778ETI+T Related Products

	MAX9778ETI+T	MAX9777ETI+T	MAX9777ETI+
Description	IC amp audio pwr 2.6W AB 28tqfn	IC amp audio pwr 2.6W AB 28tqfn	IC amp audio pwr 2.6W AB 28tqfn
Is it Rohs certified?	conform to	conform to	conform to
Maker	Maxim	Maxim	Maxim
Parts packaging code	QFN	QFN	QFN
package instruction	HVQCCN, LCC28,.2SQ,20	HVQCCN, LCC28,.2SQ,20	HVQCCN, LCC28,.2SQ,20
Contacts	28	28	28
Reach Compliance Code	compli	compli	compli
ECCN code	EAR99	EAR99	EAR99
Nominal bandwidth	22 kHz	22 kHz	22 kHz
Commercial integrated circuit types	AUDIO AMPLIFIER	AUDIO AMPLIFIER	AUDIO AMPLIFIER
JESD-30 code	S-XQCC-N28	S-XQCC-N28	S-XQCC-N28
JESD-609 code	e3	e3	e3
length	5 mm	5 mm	5 mm
Number of channels	2	2	2
Number of functions	1	1	1
Number of terminals	28	28	28
Maximum operating temperature	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C
Nominal output power	3 W	3 W	3 W
Package body material	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
encapsulated code	HVQCCN	HVQCCN	HVQCCN
Encapsulate equivalent code	LCC28,.2SQ,20	LCC28,.2SQ,20	LCC28,.2SQ,20
Package shape	SQUARE	SQUARE	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260	260	NOT SPECIFIED
power supply	5 V	5 V	5 V
Certification status	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	0.8 mm	0.8 mm	0.8 mm
Maximum slew rate	32 mA	32 mA	32 mA
Maximum supply voltage (Vsup)	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	4.5 V	4.5 V	4.5 V
surface mount	YES	YES	YES
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm	0.5 mm
Terminal location	QUAD	QUAD	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
width	5 mm	5 mm	5 mm
Humidity sensitivity level	1	1	-
technology	-	BICMOS	BICMOS

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