AD9256 – DIGITAL AMPLIFIER POWER STAGE

Part Number : AD9256

Function : DIGITAL AMPLIFIER POWER STAGE

Manufactures : Elite Semiconductor

Images :

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AD9256 image

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pinout

Description :

ESMT/EMP DIGITAL AMPLIFIER POWER STAGE Features z z z z z z z z z z 2X12.5W at 10% THD+N into 8Ω BTL at 15V 2X8W at 10% THD+N into 8Ω BTL at 12V Support single-ended or differential input Over-temperature protection Over-current protection Under-voltage detection Error report and thermal warning Built-in anti-pop function for AD modulation PVDD range from 10.8V to 16.5V 24-pin E-TSSOP thermally-enhanced package AD9256 Description The AD9256 is a high efficiency stereo digital amplifier power stage delivering 85% efficiency. Devices need two power supplies for the AD9256 operation up to 15V supply for PVDD and 3.3V for VDD. The AD9256 can deliver 10W/CH output power into 8 Ω loudspeaker (in BTL operation) within 1% THD+N at supply 15V. A built-in anti-pop function can reduce the speaker’s pop without requiring complex anti-pop sequence in PWM input, when AD9256 is applied in AD modulation. The AD9256 has included protection circuits that integrated on chip. Protections ensure the AD9256 against the fault conditions that could damage the AD9256. These safeguards of the AD9256 include over-temperature, over-current, and under-voltage protection circuits. Applications z TV audio z DVD Receiver z Home Theaters Functional Block Diagram Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc. Publication Date: Sep. 2009 Revision:0.1 1/15 ESMT/EMP Pin Assignments VDD GND OTW ERROR INA INB INC IND SDN SEL0 SEL1 APOP_CAP 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 PVDDA OUTA PGNDA/B PGNDA/B OUTB PVDDB PVDDC OUTC PGNDC/D PGNDC/D OUTD PVDDD AD9256 E-TSSOP24 Pin Description PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 VDD GND OTW ERROR INA INB INC IND SDN SEL0 SEL1 APOP_CAP PVDDD OUTD PGNDC/D PGNDC/D OUTC PVDDC PVDDB OUTB PGNDA/B PGNDA/B OUTA PVDDA NAME TYP P P O O I I I I I I I O P O P P O P P O P P O P Power supply for digital circuit Ground for digital circuit Over temperature warning. Error pointer PWM input A PWM input B PWM input C PWM input D Shutdown (active-low) with soft pulled resistor 100kohm to ground Mode select pin 0 Mode select pin 1 Anti-pop capacitor Power supply for half bridge D Half-bridge output D Ground for half bridge C/D Ground for half bridge C/D Half-bridge output C Power supply for half bridge C Power supply for half bridge B Half-bridge output B Ground for half bridge A/B Ground for half bridge A/B Half-bridge output A Power supply for half bridge A DESCRIPTION Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc. Publication Date: Sep. 2009 Revision:0.1 2/15 […]

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AD9256 Datasheet


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