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MAX9736AETJ-

Description
Audio Amplifiers Mono/Stereo Class D Amplifier
Categorysemiconductor    Analog mixed-signal IC   
File Size660KB,25 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX9736AETJ- Overview

Audio Amplifiers Mono/Stereo Class D Amplifier

MAX9736AETJ- Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerMaxim
Product CategoryAudio Amplifiers
RoHSDetails
ProductAudio Amplifiers
ClassClass-D
Output Power8 W
Mounting StyleSMD/SMT
Type1-Channel Mono or 2-Channel Stereo
Package / CaseTQFN-32
Audio - Load Impedance8 Ohms
THD plus Noise0.04 %
Supply Voltage - Max28 V
Supply Voltage - Min8 V
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 85 C
PackagingTube
Number of Channels2 Channel
Operating Supply Current30 mA
Operating Supply Voltage8 V to 28 V
Pd - Power Dissipation2.96 W
PSRR - Power Supply Rejection Ratio67 dB
Factory Pack Quantity43
Vos - Input Offset Voltage1 mV
Unit Weight0.004691 oz
19-3108; Rev 3; 9/09
KIT
ATION
EVALU
BLE
AVAILA
Mono/Stereo High-Power Class D Amplifier
MAX9736
General Description
The MAX9736A/B/D Class D amplifiers provide high-
performance, thermally efficient amplifier solutions. The
MAX9736A delivers 2 x 15W into 8Ω loads, or 1 x 30W
into a 4Ω load. The MAX9736B/D deliver 2 x 6W into 8Ω
loads or 1 x 12W into a 4Ω load.
These devices operate from 8V to 28V and provide a
high PSRR, eliminating the need for a regulated power
supply. The MAX9736 offers up to 88% efficiency at
12V supply.
Pin-selectable modulation schemes select between fil-
terless modulation and classic PWM modulation.
Filterless modulation allows the MAX9736 to pass CE
EMI limits with 1m cables using only a low-cost ferrite
bead and capacitor on each output. Classic PWM mod-
ulation is optimized for best audio performance when
using a full LC filter.
A pin-selectable stereo/mono mode allows stereo oper-
ation into 8Ω loads or mono operation into 4Ω loads. In
mono mode, the right input op amp becomes available
as a spare device, allowing flexibility in system design.
Comprehensive click-and-pop reduction circuitry mini-
mizes noise coming into and out of shutdown or mute.
Input op amps allow the user to create summing amplifiers,
lowpass or highpass filters, and select an optimal gain.
The MAX9736A/B/D are available in 32-pin TQFN pack-
ages and specified over the -40°C to +85°C tempera-
ture range.
Features
o
Wide 8V to 28V Supply Voltage Range
o
Spread-Spectrum Modulation Enables Low EMI
Solution
o
Passes CE EMI Limits with Low-Cost Ferrite
Bead/Capacitor Filter
o
Low BOM Cost
o
High 67dB PSRR at 1kHz Reduces Supply Cost
o
88% Efficiency Eliminates Heatsink
o
Thermal and Output Current Protection
o
< 1µA Shutdown Mode
o
Mute Function
o
Space-Saving, 32-Pin TQFN Packages, 7mm x
7mm x 0.8mm (MAX9736A/B), 5mm x 5mm x
0.8mm (MAX9736D)
Applications
LCD/PDP/CRT Monitors
LCD/PDP/CRT TVs
MP3 Docking Stations
Notebook PCs
PC Speakers
All-in-One PCs
Ordering Information
PART
MAX9736AETJ+
STEREO/MONO
OUTPUT POWER
2 x 15W/
1 x 30W
PIN-PACKAGE
32 TQFN-EP*
7mm x 7mm
Note:
All devices are specified over the -40°C to +85°C oper-
ating temperature range.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
*EP
= Exposed pad.
Ordering Information continued at end of data sheet.
Simplified Diagram
8V TO 28V
AUDIO
INPUTS
INPUT RESISTORS AND
CAPACITORS SELECT GAIN
AND CUTOFF FREQUENCY
SHDN
MUTE
MONO
MAX9736
________________________________________________________________
Maxim Integrated Products
1
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.

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