Crescendo III PF v0.2 130625.pdf

CONFIDENTIAL ADVANCE INFORMATION
Crescendo III SoundBar SoC
Product Brief
Analog Reinvented
rd
The Crescendo III SoundBar is a 3 -generation SoC that integrates all soundbar audio and microcontroller (MCU)
functions in a 176-pin Low Profile Quad Flat Pack (LQFP) package.
For best sound, the Crescendo III SoC is built on the ESS SABRE DAC technology normally found only in high-end
audiophile and professional audio equipments to deliver spectacular music with an unsurpassed sound stage, utilizing
the ESS patented HyperStream modulator capable of 100% modulation and unconditional stability to drive analog or
digital amplifiers. For digital amplifiers, feedback is provided to drastically reduce distortion and non-linearities
encountered by open-loop systems.
For lowest system BOM, the Crescendo III SoC adopts a unified memory architecture is adopted for lowest memory
cost. It integrates a 32-bit RISC to eliminate multiple microcontrollers needed for system, CEC and HDMI repeater
control. Additionally, it includes a 64-bit media processor for audio decoding, post-processing, lip-synchronization and
sound effects such as virtual surround and bass enhancement, a hardware parametric equalizer (PEQ) for speaker
equalization, an automatic gain limiter (AGL) for anti-clipping control, a user-programmable 32-bit Audio Coprocessor
for custom sound algorithms, a 7.1-channel patented HyperStream Class D or D/A converter for driving digital or
analog power stages, a 3-input HyperStream stereo ADC for connection to line input sources, a stereo MIC ADC for
microphone input, a 4-input SPDIF/ARC receiver for connection to coaxial, optical, HDMI and ARC input sources, an 8channel I2S input for connection to HDMI repeater, a flexible remote, VFD and GPIO module for connection to remote
control, VFD, buttons and LEDs, and a full-speed USB host controller for firmware upgrade or music playback from
thumb drives or iPod.
FEATURE
Highest integration of all audio and system controller
functions in TV soundbar
Enhanced 32-bit RISC controller with remote and
GPIO handler, VFD controller, I2C master and UART
Patented Hyperstream™ PWM/DAC
• Output in PWM/DAC/I2S modes
• 7.1ch Differential PWM/DAC
• Hardware Parametric Equalizer
• Hardware AGL
Comprehensive Sound Bar Processing
• Decode MP3/DD/DTS, etc.
• Sound effects
• Enhanced Audio Coprocessor w/ 128kB SRAM
Versatile Audio Input
• 3-input enhanced ADC (50kΩ impedance)
• MIC ADC
• 4-input SPDIF/ARC receiver
• 8-ch I2S input
System
• FS USB Host
BENEFIT
Lowest system BOM cost
Eliminate multiple MCUs for system, CEC and HDMI control/monitoring
• Main MCU for IR, VFD, Keys and system control
• CEC MCU for HDMI CEC processing
• HDMI MCU/daughter card for HDMI repeater control
Eliminate external DSP
• Drive analog or digital amplifier and wireless subwoofer transmitter
• Realistic audio from tiny speaker/enclosure
• Support amplifier anti-clipping
Eliminate external DSP
• Playback all legacy audio formats
• Virtual Surround Speaker, AV sync etc.
• More memory for custom algorithms and ease of programming
Eliminate external SPDIF receiver & ADC
• CD quality analog audio input
• Microphone input for Karaoke applications
• Connect to optical/coax/HDMI SPDIF or Audio Return Channel
• Take HDMI audio in PCM format
•
Firmware upgrade, playback from iPoD or thumbdrives
ESS TECHNOLOGY, INC. 48401 Fremont Blvd., Fremont, CA 94538, USA Tel (510) 492-1088 • Fax (510) 492-1098
CONFIDENTIAL ADVANCE INFORMATION Rev. 0.2
June 25, 2013
Crescendo III SoundBar Product Brief
FUNCTIONAL BLOCK DIAGRAM
Crescendo III SoC
Flash
64-bit Media Processor
System
Control
System
CEC
Enhanced
32-bit
RISC
HDMI
TV in
Line in
Aux in
MIC In
2ch Audio ADC
50k Rin
MIC ADC
SPDIF
ARC
HDMI SPDIF
ARC/SPDIF Rx
HDMI I2Si
7.1ch I2S in
I2So
HDMI
out
HDMI
in
SDRAM
Memory Controller
Firmware
Upgrade
FS USB 2.0 Host
GPIO / I2C / VFD / IR
GPIO / I2C / VFD / IR
Video Encoder
CVBS (for debugging
or sound tuning)
Audio Coprocessor
Module
128kB RAM
Custom Algorithms
Enhanced PEQ
Speaker Filter
Enhanced DRC
7.1ch
Differential
PWM/DAC
Power
Stage
HDMI
Repeater
No part of this publication may be reproduced, stored in a retrieval system, transmitted, or translated in any form or by any means, electronic,
mechanical, manual, optical, or otherwise, without the prior written permission of ESS Technology, Inc. ESS Technology, Inc. makes no representations
or warranties regarding the content of this document. All specifications are subject to change without prior notice. ESS Technology, Inc. assumes no
responsibility for any errors contained herein. U.S. patents pending.
ESS TECHNOLOGY, INC. 48401 Fremont Blvd., Fremont, CA 94538, USA Tel (510) 492-1088 • Fax (510) 492-1098
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