19-6124; Rev 0; 11/11
EVALUATION KIT AVAILABLE
Mono 3.2W Class D Amplifier
with Integrated Input Coupling Capacitors
The MAX98314 mono 3.2W Class D amplifier provides
Class AB audio performance with Class D efficiency.
This device offers five selectable gain settings (0dB,
3dB, 6dB, 9dB, and 12dB) set by a single gain-select
Active emissions limiting (AEL) edge rate and overshoot
control circuitry and a filterless spread-spectrum modu-
lation (SSM) scheme greatly reduce EMI and eliminate
the need for output filtering found in traditional Class D
The IC’s low 0.95mA at 3.7V, 1.2mA at 5.0V quiescent
current extends battery life in portable applications.
Highly linear, integrated input coupling capacitors (CIN)
reduce solution size and provide excellent THD+N, PSRR,
and CMRR performance at low frequencies vs. standard
Class D amplifiers using external input capacitors.
The IC is available in a small 9-bump, 0.3mm pitch WLP
(1.0mm x 1.0mm x 0.80mm) package and is specified
over the -40NC to +85NC extended temperature range.
S Integrated Input Coupling Capacitors with
fC = 100Hz (6dB)
fC = 200Hz (12dB)
S Low Quiescent Current
0.95mA at 3.7V
1.2mA at 5.0V
S Delivers High Output Power at 10% THD+N
3.2W into 4I, VPVDD = 5V
960mW into 8I, VPVDD = 3.7V
S Ultra-Low Noise: 19µV
S Eliminates Output Filtering Requirement
Spread Spectrum and Active Emissions Limiting
S Click-and-Pop Suppression
S Thermal and Overcurrent Protection
S Low Current Shutdown Mode
S Small, Space-Saving Package
Simplified Block Diagram
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX98314.related
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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.
Datasheet pdf - http://www.DataSheet4U.net/