MAX9736AEVKIT+ Maxim Integrated Products, MAX9736AEVKIT+ Datasheet

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MAX9736AEVKIT+

Manufacturer Part Number
MAX9736AEVKIT+
Description
Audio Modules & Development Tools MAX9736A KIT MAX9736A KIT
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX9736AETJ.pdf (25 pages)

Specifications of MAX9736AEVKIT+

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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.
19-3108; Rev 3; 9/09
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.
INPUT RESISTORS AND
CAPACITORS SELECT GAIN
AND CUTOFF FREQUENCY
AUDIO
INPUTS
Mono/Stereo High-Power Class D Amplifier
________________________________________________________________ Maxim Integrated Products
SHDN
MUTE
General Description
MONO
o Wide 8V to 28V Supply Voltage Range
o Spread-Spectrum Modulation Enables Low EMI
o Passes CE EMI Limits with Low-Cost Ferrite
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
Ordering Information continued at end of data sheet.
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.
MAX9736AETJ+
LCD/PDP/CRT Monitors
LCD/PDP/CRT TVs
MP3 Docking Stations
Solution
Bead/Capacitor Filter
7mm x 0.8mm (MAX9736A/B), 5mm x 5mm x
0.8mm (MAX9736D)
PART
MAX9736
8V TO 28V
OUTPUT POWER
Ordering Information
STEREO/MONO
Simplified Diagram
2 x 15W/
1 x 30W
Notebook PCs
PC Speakers
All-in-One PCs
Applications
PIN-PACKAGE
32 TQFN-EP*
7mm x 7mm
Features
8Ω
8Ω
1

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MAX9736AEVKIT+ Summary of contents

Page 1

... SHDN CAPACITORS SELECT GAIN MUTE MONO AND CUTOFF FREQUENCY ________________________________________________________________ Maxim Integrated Products 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. o Wide 8V to 28V Supply Voltage Range o Spread-Spectrum Modulation Enables Low EMI Solution ...

Page 2

Mono/Stereo High-Power Class D Amplifier ABSOLUTE MAXIMUM RATINGS PVDD to PGND.......................................................-0.3V to +30V AGND to PGND .....................................................-0.3V to +0.3V INL, INR, FBL, FBR, COM to AGND .........-0. MUTE, SHDN, MONO, MOD, REGEN to AGND.......-0.3V to +6V REG to ...

Page 3

Mono/Stereo High-Power Class D Amplifier ELECTRICAL CHARACTERISTICS (continued 20V 5V PVDD VS AGND PGND 20kΩ and R = 20kΩ ∞, AC measurement bandwidth 22Hz to 22kHz ...

Page 4

Mono/Stereo High-Power Class D Amplifier ELECTRICAL CHARACTERISTICS (continued 20V 5V PVDD VS AGND PGND 20kΩ and R = 20kΩ ∞, AC measurement bandwidth 22Hz to 22kHz ...

Page 5

Mono/Stereo High-Power Class D Amplifier ELECTRICAL CHARACTERISTICS (continued 20V 5V PVDD VS AGND PGND 20kΩ and R = 20kΩ ∞, AC measurement bandwidth 22Hz to 22kHz ...

Page 6

Mono/Stereo High-Power Class D Amplifier (MAX9736A 12V, MOD = high, spread-spectrum modulation mode, V PVDD otherwise noted.) TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 12V, PVDD FIXED FREQUENCY, 8Ω LOAD OUT 0.1 ...

Page 7

Mono/Stereo High-Power Class D Amplifier (MAX9736A 12V, MOD = high, spread-spectrum modulation mode, V PVDD otherwise noted.) TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER 24V, PVDD SPREAD SPECTRUM, 8Ω LOAD 1 6kHz 1kHz 0.1 ...

Page 8

Mono/Stereo High-Power Class D Amplifier (MAX9736A 12V, MOD = high, spread-spectrum modulation mode, V PVDD otherwise noted.) EFFICIENCY vs. TOTAL OUTPUT POWER 100 V = 24V, PVDD 90 FIXED FREQUENCY, 8Ω LOAD 80 70 EFFICIENCY 60 POWER DISSIPATION ...

Page 9

Mono/Stereo High-Power Class D Amplifier (MAX9736A 12V, MOD = high, spread-spectrum modulation mode, V PVDD otherwise noted.) TOTAL OUTPUT POWER vs. LOAD RESISTANCE 24V, PVDD 35 SPREAD SPECTRUM 30 25 10% THD ...

Page 10

Mono/Stereo High-Power Class D Amplifier (MAX9736A 12V, MOD = high, spread-spectrum modulation mode, V PVDD otherwise noted.) SUPPLY CURRENT vs. PVDD SUPPLY VOLTAGE 3.3V REGEN MUTE SHDN ...

Page 11

Mono/Stereo High-Power Class D Amplifier (MAX9736A 12V, MOD = high, spread-spectrum modulation mode, V PVDD otherwise noted.) TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER 18V, PVDD FIXED FREQUENCY, 4Ω LOAD, MONO 1 6kHz 0.1 ...

Page 12

Mono/Stereo High-Power Class D Amplifier (MAX9736A 12V, MOD = high, spread-spectrum modulation mode, V PVDD otherwise noted.) OUTPUT POWER vs. LOAD RESISTANCE 12V, MONO, PVDD 18 SPREAD SPECTRUM 10% THD+N ...

Page 13

Mono/Stereo High-Power Class D Amplifier PIN NAME 1, 2 OUTL- Left-Channel Negative Speaker Output 3 BOOT Charge-Pump Output. Connect a 1μF charge-pump holding capacitor from BOOT to PVDD. 4 MONO Mono Select. Set MONO high for mono mode, low for ...

Page 14

Mono/Stereo High-Power Class D Amplifier Detailed Description The MAX9736A/B/D filterless, stereo Class D audio power amplifiers offer Class AB performance and Class D efficiency with minimal board space. The MAX9736A outputs 2x15W in stereo mode and 30W in mono mode. ...

Page 15

Mono/Stereo High-Power Class D Amplifier Click-and-Pop Suppression The MAX9736 features comprehensive click-and-pop suppression that minimizes audible transients on start- up and shutdown. While in shutdown, the H-bridge high-impedance state. Mono Configuration The MAX9736 features a mono mode ...

Page 16

Mono/Stereo High-Power Class D Amplifier Table 1. Suggested Values for LC Filter R (Ω) L1, L2 (µ reduces the efficiency, the THD+N performance, and the output power of the MAX9736. When evaluating with ...

Page 17

Mono/Stereo High-Power Class D Amplifier The MAX9736 features an internal 5V regulator, VS, powered from PVDD. Connect REGEN to SHDN so that the internal 5V regulator is enabled/disabled when the MAX9736 is enabled/disabled external 5V supply is available, ...

Page 18

Mono/Stereo High-Power Class D Amplifier Typical Application Circuit for Stereo Output Configuration 1μF 20kΩ 20kΩ 470nF 1μF 20kΩ 20kΩ 470nF SHUTDOWN MUTE 5V NOTE: PREAMPLIFIER GAIN SET AT 0dB. 18 ______________________________________________________________________________________ 8V TO 28V 0.1μF 1μF VS PVDD 16 27, ...

Page 19

Mono/Stereo High-Power Class D Amplifier Typical Application Circuit for Single (Mono) Output Configuration 1μF LPF FBR 1μF HPF AUDIO INPUT FBR SHUTDOWN MUTE 5V ______________________________________________________________________________________ 8V TO 28V 0.1μF 1μF VS PVDD 16 27, 30 REG 15 REGULATOR FBL 5 ...

Page 20

Mono/Stereo High-Power Class D Amplifier Pin Configuration TOP VIEW OUTR+ 25 OUTR PVDD 28 PGND MAX9736 29 PGND PVDD 30 31 EP* OUTL+ + OUTL TQFN ...

Page 21

Mono/Stereo High-Power Class D Amplifier For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 32 TQFN-EP (7mm x 7mm) 32 TQFN-EP (5mm x 5mm) ______________________________________________________________________________________ Package Information PACKAGE CODE T3277-3 T3255-4 DOCUMENT NO. 21-0144 21-0140 ...

Page 22

Mono/Stereo High-Power Class D Amplifier For the latest package outline information and land patterns www.maxim-ic.com/packages. 22 ______________________________________________________________________________________ Package Information (continued) ...

Page 23

Mono/Stereo High-Power Class D Amplifier For the latest package outline information and land patterns www.maxim-ic.com/packages. ______________________________________________________________________________________ Package Information (continued) 23 ...

Page 24

Mono/Stereo High-Power Class D Amplifier For the latest package outline information and land patterns www.maxim-ic.com/packages. 24 ______________________________________________________________________________________ Package Information (continued) ...

Page 25

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 25 © 2009 Maxim Integrated Products ...

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