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MAXIM MAX9708ETN+D

Manufacturer
MAXIM
MPN
MAX9708ETN+D
LCSC Part #
C7459912
Packaging
TQFN-56(8x8)
Customer #
Key Attributes
20W/40W, Filterless, Mono/Stereo, Class D Amplifier
DatasheetMAXIM MAX9708ETN+D
RoHS Compliance1 documents available
In-Stock: 1
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QtyUnit PriceTotal Amount
1+$ 31.0248$ 31.02
37+$ 29.4864$ 1091.00
Standard Packaging37/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Linear/Amplifiers/Audio Amplifiers
ManufacturerMAXIM
PackagingTQFN-56(8x8)
Quiescent Current30mA
Voltage - Supply10V~18V
FeaturesFilterless architecture;Digitally programmable gain;Enable/shutdown function;Automatic mute/no-noise switch
Total Harmonic Distortion + Noise (THD+N)0.1%
Operating Temperature-40℃~+85℃
Signal-to-Noise Ratio91dB
Number of Inputs2 Pairs Differential Inputs
Speaker Channels2-Channel
Efficiency87%
Output Power42Wx1@4Ω;21Wx2@8Ω
ClassClass D
Power Supply Rejection Ratio (PSRR)90dB
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Introduction

AI Translation

The MAX9708 mono/stereo, Class D audio power amplifier delivers up to 2×21W into an 8Ω stereo mode and 1×42W into a 4Ω load in mono mode while offering up to 87% efficiency. The MAX9708 provides Class AB amplifier performance with the benefits of Class D efficiency, eliminating the need for a bulky heatsink and conserving power. The MAX9708 operates from a single +10V to +18V supply, driving the load in a BTL configuration. The MAX9708 offers two modulation schemes: a fixed - frequency modulation (FFM) mode, and a spread - spectrum modulation (SSM) mode that reduces EMI - radiated emissions. The MAX9708 can be synchronized to an external clock from 600kHz to 1.2MHz. A synchronized output allows multiple units to be cascaded in the system. Features include fully differential inputs, comprehensive click - and - pop suppression, and four selectable - gain settings (22dB, 25dB, 29.5dB, and 36dB). A pin - programmable thermal flag provides seven different thermal warning thresholds. Short - circuit and thermal - overload protection prevent the device from being damaged during a fault condition. The MAX9708 is available in a 56 - pin TQFN (8mm×8mm×0.8mm) package and is specified over the extended - 40°C to +85°C temperature range.

Features

AI Translation
  • 2 x 21W Output Power in Stereo Mode (8Ω, THD = 10%)
  • 1 x 42W Output Power in Mono Mode (4Ω, THD = 10%)
  • High Efficiency: Up to 87%
  • Filterless Class D Amplifier
  • Unique Spread - Spectrum Mode
  • Programmable Gain (+22dB, +25dB, +29.5dB, +36dB)
  • High PSRR (90dB at 1kHz)
  • Differential Inputs Suppress Common - Mode Noise
  • Shutdown and Mute Control
  • Integrated Click - and - Pop Suppression
  • Low 0.1% THD+N
  • Current Limit and Thermal Protection
  • Programmable Thermal Flag
  • SYNC Input/Output
  • Available in Thermally Efficient, Space - Saving 56 - Pin TQFN Package