structure capable of delivering 30W into 4鈩?/div>
speakers. As in all other MPS Class D Audio
Amplifiers, this device exhibits the high fidelity
of a Class A/B amplifier at efficiencies greater
than 90%.
, 鈥淢PS鈥? 鈥淢onolithic Power Systems鈥? and 鈥淭he Future of Analog IC
Technology鈥?are Registered Trademarks of Monolithic Power Systems, Inc.
EVALUATION BOARD
ABSOLUTE MAXIMUM RATINGS
Supply Voltage V
IN
....................................... 26V
BS Voltage.......................V
SW
-0.3V to V
SW
+6.5V
Enable Voltage V
EN
........................... -0.3V to 6V
V
SW
, V
PIN
, V
NIN
.............................. -1V to V
DD
+1V
AGND to PGND ............................. -0.3V to 0.3V
Recommended Operating Conditions
Input Voltage V
DD
.......................... 9.5V to 14.5V
Signal Input Voltage ..............................卤1V rms
Signal Input Frequency............... 20Hz to 20kHz
Signal Source Impedance ..........less than 600鈩?/div>
External Enable Input ........................... 0V to 5V
Speaker Resistance ............................ 4鈩?to 8鈩?/div>
Dimensions (1.9鈥漍 x 1.2鈥漎)
Board Number
EV0045
MPS IC Number
MP7731DF
06/04, Rev. 1.3
www.MonolithicPower.com
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