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What is MAX9714?

This electronic component, produced by the manufacturer "Maxim Integrated Products", performs the same function as "(MAX9713 / MAX9714) Spread-Spectrum Mono/Stereo Class D Amplifiers".


MAX9714 Datasheet PDF - Maxim Integrated Products

Part Number MAX9714
Description (MAX9713 / MAX9714) Spread-Spectrum Mono/Stereo Class D Amplifiers
Manufacturers Maxim Integrated Products 
Logo Maxim Integrated Products Logo 


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19-3039; Rev 2; 9/04
6W, Filterless, Spread-Spectrum
Mono/Stereo Class D Amplifiers
General Description
The MAX9713/MAX9714 mono/stereo class D audio
power amplifiers provide class AB amplifier performance
with class D efficiency, conserving board space and
eliminating the need for a bulky heatsink. Using a class
D architecture, these devices deliver up to 6W while
offering greater than 85% efficiency. Proprietary and
patent-protected modulation and switching schemes
www.DataSheeret4nUd.ceormthe traditional class D output filter unnecessary.
The MAX9713/MAX9714 offer two modulation schemes:
a fixed-frequency mode (FFM), and a spread-spectrum
mode (SSM) that reduces EMI-radiated emissions due
to the modulation frequency. The device utilizes a fully
differential architecture, a full bridged output, and com-
prehensive click-and-pop suppression.
The MAX9713/MAX9714 feature high 76dB PSRR, low
0.07% THD+N, and SNR in excess of 100dB. Short-cir-
cuit and thermal-overload protection prevent the
devices from being damaged during a fault condition.
The MAX9713 is available in a 32-pin TQFN (5mm x
5mm x 0.8mm) package. The MAX9714 is available in a
32-pin TQFN (7mm x 7mm x 0.8mm) package. Both
devices are specified over the extended -40°C to
+85°C temperature range.
Applications
LCD Monitors
LCD TVs
Desktop PCs
LCD Projectors
High-End Notebook
Audio
Hands-Free Car
Phone Adaptors
Features
Filterless Class D Amplifier
Unique Spread-Spectrum Mode Offers 5dB
Emissions Improvement Over Conventional
Methods
Up to 85% Efficient
6W Output Power into 8
Low 0.07% THD+N
High PSRR (76dB at 1kHz)
10V to 25V Single-Supply Operation
Differential Inputs Minimize Common-Mode Noise
Pin-Selectable Gain Reduces Component Count
Industry-Leading Integrated Click-and-Pop
Suppression
Low Quiescent Current (18mA)
Low-Power Shutdown Mode (0.2µA)
Short-Circuit and Thermal-Overload Protection
Available in Thermally Efficient, Space-Saving
Packages
32-Pin TQFN (5mm x 5mm x 0.8mm)–MAX9713
32-Pin TQFN (7mm x 7mm x 0.8mm)–MAX9714
Ordering Information
PART
MAX9713ETJ
MAX9714ETJ
TEMP RANGE
-40oC to +85oC
-40oC to +85oC
*EP = Exposed paddle.
PIN-PACKAGE
32 TQFN-EP*
32 TQFN-EP*
AMP
Mono
Stereo
Block Diagrams
0.47µF
IN+
0.47µF
IN-
MAX9713
H-BRIDGE
OUT+
OUT-
0.47µF
INL+
0.47µF
INL-
MAX9714
H-BRIDGE
OUTL+
OUTL-
0.47µF
INR+
0.47µF
INR-
H-BRIDGE
OUTR+
OUTR-
Pin Configurations appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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.

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MAX9714 equivalent
6W, Filterless, Spread-Spectrum
Mono/Stereo Class D Amplifiers
Typical Operating Characteristics (continued)
(136µH with 16, 68µH with 8, part in SSM mode, unless otherwise noted.)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
VDD = 15V
AV = 13dB
10
www.DataSheet4U.com
f=
RL
1kHz
= 8
1
SSM
0.1
FFM
0.01
0.001
0
246
OUTPUT POWER (W)
8
OUTPUT POWER
vs. SUPPLY VOLTAGE
8
7
6
5
4
3
2
AV = 13dB
1 THD+N = 10%
RL = 8
0
10 13
16
19
SUPPLY VOLTAGE (V)
22
25
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0
VDD = 15V
-10 AV = 13dB
VRIPPLE = 200mVP-P
-20 RL = 16
-30
-40
-50
-60
-70
10
100 1k 10k
FREQUENCY (Hz)
100k
EFFICIENCY vs. OUTPUT POWER
100
RL = 16
90
80
70
60 RL = 8
50
40
30
20
10
0
0
VDD = 15V
AV = 13dB
2468
OUTPUT POWER (W)
10
OUTPUT POWER
vs. LOAD RESISTANCE
10
9
VDD = 15V
AV = 13dB
8
THD+N = 10%
7
6
5
4
3 THD+N = 1%
2
1
0
1 10 100
LOAD RESISTANCE ()
CROSSTALK vs. FREQUENCY
0
OUTPUT REFERRED
AV = 13dB
-20
-40
-60 LEFT TO RIGHT
-80
-100
-120
0.01
RIGHT TO LEFT
0.1 1 10
FREQUENCY (Hz)
100
100
90
80
70
60
50
40
30
20
10
0
0
EFFICIENCY vs. OUTPUT POWER
RL = 16
RL = 8
VDD = 20V
AV = 13dB
369
OUTPUT POWER (W)
12
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
0
VDD = 15V
-10 AV = 13dB
-20 RL = 8
-30
-40
-50
-60
-70
-80
-90
10
100 1k 10k
FREQUENCY (Hz)
100k
OUTPUT FREQUENCY SPECTRUM
20
FFM MODE
0 POUT = 5W
f =1kHz
-20 RL = 8
UNWEIGHTED
-40
-60
-80
-100
-120
-140
0
5 10 15
FREQUENCY (Hz)
20
_______________________________________________________________________________________ 5


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