DESCRIPTION
The MP7782 is a mono, 50W Class D Audio Amplifier. It is one of MPS’ second generation
fully integrated audio amplifiers which dramatically reduces solution size by integrating
four 180mΩ power MOSFETs in a space saving TSSOP20 package. The MP7782 utilizes a full
bridge output structure capable of delivering 50W into 6Ω speakers. As in all other MPS
Class D audio amplifiers, this device exhibits the high fidelity of a Class AB amplifier with an
efficiency of 90%. The circuit is based on ADAMTM (Analog Digital Adaptive Modulation),
MPS’ proprietary variable frequency modulation topology (patents pending) that delivers
excellent PSRR, fast response time and operates on a single power supply.

FEATURES
*50W into 6Ω with VDD = 24V @10% THD+N
*90% Efficiency at 50W
*Amplifies Full Audio Range with Low THD+N
*THD+N = 0.06% @ 1W
*9.5V to 24V Supply Voltage Operation
*Full Bridge Output Drive
*4 Integrated 180mΩ Switches
*Turn-On / Turn-Off Click and Pop Suppression
*Integrated Short Circuit Protection
*Integrated Thermal Shutdown
*Mute / Standby Mode
*Thermally Enhanced 20-Pin TSSOP Package with Exposed Pad

APPLICATIONS
*MP3 Systems
*Surround Sound Systems
*Multimedia Computers
*Televisions
*Home Stereos
*DVD and VCD Players
*Game Devices and Systems
*Subwoofers

EV7782DF-00A, MP7782DF

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DESCRIPTION
The EUA2005 is a high efficiency, 1.5W mono class-D audio power amplifier. A low noise, filterless PWM architecture eliminates the output filter, reducing external component count, system cost, and simplifying design.
Operating in a single 5V supply, EUA2005 is capable of driving 8Ω speaker load at a continuous average output of 1.5W/10% THD+N or 1.3W/1% THD+N. The EUA2005 has high efficiency with speaker load compared to a typical class AB amplifier. With a 3.6V supply driving an 8Ω speaker , the efficiency for a 400mW power level is 84%.
In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the EUA2005. The gain of EUA2005 is externally configurable which allows independent gain control from multiple sources by summing signals from seperate sources.
The EUA2005 is available in DFN packages.

FEATURES
* Efficiency at 3.6V With an 8-Ω Speaker:
− 84% at 400 mW
− 80% at 100 mW
* Low 2.8-mA Quiescent Current and 0.5-μA Shutdown Current
* 2.5V to 5.5V Wide Supply Voltage
* Optimized PWM Output Stage Eliminates LC Output Filter
* Improved PSRR (−72 dB) Eliminates Need for a Voltage Regulator
* Fully Differential Design Reduces RF Rectification nd Eliminates Bypass Capacitor
* Improved CMRR Eliminates Two Input oupling Capacitors
* Internally Generated 250-kHz Switching requency
* Integrated Pop and Click Suppression Circuitry
* 3mm× 3mm DFN-8 package
* RoHS compliant and 100% lead(Pb)-free

APPLICATIONS
* Ideal for Wireless or Cellular Handsets and PDAs


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1  FEATURES
25W + 25W OUTPUT POWER: @RL = 8Ω/4Ω; THD = 10%
HIGH EFFICIENCY
WIDE SUPPLY VOLTAGE RANGE (FROM ±10 TO ±25V)
SPLIT SUPPLY
TURN OFF/ON POP FREE
ST-BY AND MUTE FEATURES
SHORT CIRCUIT PROTECTION ACROSS THE LOAD
THERMAL OVERLOAD PROTECTION
EXTERNALLY SINCHRONIZABLE
BRIDGE CONFIGURATION

2  DESCRIPTION
The TDA7490 is a dual audio class D amplifier assembled in Flexiwatt 25 package; it is specially designed for high efficiency application mainly for TV and Home Stereo sets.

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