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PS8535 Datasheet Preview

PS8535 Datasheet

Stereo USB Streaming Audio Processor

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PS8535 Datasheet (Ver1.00)
Stereo USB Streaming Audio Processor with
Stereo Speaker Amplifier
2011-02-15
Copyright 2011 © Pulsus Technologies, Inc.




Pulsus

PS8535 Datasheet Preview

PS8535 Datasheet

Stereo USB Streaming Audio Processor

No Preview Available !

PS8535
High-Fidelity Full-Digital Amplifier for USB Speakers
Stereo USB Streaming Audio Processor
with Stereo Speaker Amplifier
Introduction_______________________ Features___________________________
The PS8535 is a highly integrated system-on-chip solu-
tion for USB speaker applications. It combines all essen-
tial active parts including USB interface, a high-
performance stereo PWM modulator, a sophisticated
sample rate converter, a stereo speaker amplifier and
state-of-art digital signal processing.
Built-in USB interface supports both 5V power supply
and adaptive isochronous transfer for playback, so no
external power source is required. On-chip full-digital
stereo speaker amplifier is rated at 1 watt per channel
with 96% efficiency.
The PS8535 fully supports sound processing including
five-band equalizer, dynamic range control(DRC), mute,
volume and auto gain limiter. The equalizer setting may
be selected from a large set of preset equalizer pool op-
timized for the most popular speakers in the market. The
PS8535 also provides button control for bass and treble
tone, dynamic range control, volume and mute controls.
Through the on-chip I2S interface, the PS8535 may also
receive additional digital sources. I2C control bus and
GPIO allows full compatibility and easy configuration.
Advantages________________________
Outstanding sound quality from patented full digital
amplifier.
No additional active components for USB speakers
required.
Sophisticated on-chip sample rate converter.
Sound processing : equalizer, bass, treble, DRC, etc.
Easy speaker tuning and user sound effects control
Supports selectable optimized speaker tuning for
both 4and 8speakers
On-chip USB interface
USB1.1 specification full-speed compatible
No required device driver
Adaptive isochronous transfer for playback
Windows 98/XP/Vista, Mac OS and Linux compatible
Single power supply : Bus powered/self powered
Multiple functions
GPIO (general purpose inputs and outputs)
Stereo serial input ports(I2S)
I2C control bus
Audio source select using a pin : USB/I2S
High-performance digital to digital converter
2 channel full-digital stereo BTL driver
Independently adaptive sample rate : up to 96kHz
On-chip sample rate converter
Clipping free processing with on-chip DRC
5-band full parametric equalizer for channel
Digital volume control and DRC control
Soft volume adjustment & soft mute control
Click noise free
Easy speaker tuning by preset equalizer with GPIO
Equalizer and filter value setting available with EE-
PROM
GPIO controlled bass, treble, DRC, volume & mute
Embedded clock generator (PLL)
Vendor-identification, PID, String available with ex-
ternal EEPROM
Applications_______________________
USB PC speakers
USB monitors
USB connection consumer audio devices
Copyright © 1999-2011 Pulsus Technologies, Inc.
Reserves the right to make changes to the information contained in this document without notice
Contact PULSUS Technologies for recent information. CONFIDENTIAL
Version: 1.00
Feb. 15, 2011
Page: 2 / 12


Part Number PS8535
Description Stereo USB Streaming Audio Processor
Maker Pulsus
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