Single Chip Design

Tuesday, September 29, 2009

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The SSM2517 Class D audio amplifier combines on a single chip an audio DAC, power amplifier and a PDM digital interface.

Analog Devices (ADI) (Norwood, MA) has announced the PDM (pulse density modulation) digital-input Class D audio amplifier for handset and other portable applications, such as portable media players and laptop computers. The SSM2517 Class D audio amplifier combines on a single chip an audio DAC (digital-to-analog converter), power amplifier and a PDM digital interface. Features include:

Filterless digital Class-D amplifier.
PDM digital input interface.
2.5 W into 4 Ω and 1.4 W into 8 Ω at 5 V Supply @ 1 percent THD+N.
Available in 9-bump 1.5x1.5mm 0.5mm pitch WLCSP.
Efficiency 84 percent at full scale into 4 Ω.
SNR 98 dB, A-weighted typical.
THD <0.01 percent @ 1 kHz, 100 mW/Channel output.

For more information www.analog.com

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Analog Devices, Inc.
1 Technology Way, Box 9106, PO Box 9106, Norwood, MA 02062

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