MaxxBass ASIC. MX3000CS Datasheet

MX3000CS ASIC. Datasheet pdf. Equivalent


Part MX3000CS
Description MaxxBass ASIC
Feature MX3000CS Datasheet MX3000CS MaxxBass ASIC for Psycho-Acoustic Bass Extension MX3000CS Features (ne.
Manufacture Waves Audio
Datasheet
Download MX3000CS Datasheet


MX3000CS Datasheet MX3000CS MaxxBass ASIC for Psycho-Acoust MX3000CS Datasheet
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MX3000CS
MX3000CS Datasheet
MX3000CS
MaxxBass ASIC for Psycho-Acoustic Bass Extension
MX3000CS Features (new features of MX3000CS version*)
Second Generation ASIC for patented MaxxBass® algorithm
Proven to extend perceived bass frequency response by up to 11/2 octaves
Analog stereo input and output with minimal external components
Supports I2C host and stand-alone (no microcontroller host) applications
Software commands for
- Intensity
- Clock Divider*
- Bypass
- Subwoofer Low Pass Filter*
- Powerdown
- Power-on Output Delay*
- Snap reduction
- Noise Gate*
Improved SNR with higher 2.0Vpp input dynamic range and noise gate
Controls for setting MaxxBass Intensity without a microcontroller host*
Reset pin voltage monitor for robust reset behavior*
Low cost 16-pin 150mil SOIC RoHS compliant green* packaging
Low power consumption with 3.3 volt operation
MX3000CS Description
MaxxBass is a bass frequency extension technology that extends the perceived bass frequency
response below the physical low frequency cut off in an audio system. It is based upon psycho-
acoustic effects, which Waves has patented in the USA and other countries worldwide.
MaxxBass utilizes the principle of the missing fundamental, which creates the sensation of low
frequencies by generating a carefully calculated series of harmonics designed to simulate the
auditory experience caused by the missing fundamental pitch. These harmonics extend the
virtual frequency response up to two-third or 11/2 octaves below the physical speaker cutoff
frequency without perceived distortion or increased power consumption.
The MX3000CS is the second generation, mixed-signal ASIC (Application Specific Integrated
Circuit) that includes a MaxxBass optimized DSP, sigma delta ADC, DAC and high quality
analog circuits. It provides a low cost, stand-alone solution for implementing MaxxBass. It is
ideal for extending bass frequency response in consumer products such as portable
loudspeakers, LCD TVs, mini-compo, car audio, subwoofers and other audio products where
size and cost constraints limit the available bass frequency response.
July 2006
1 www.maxx.com



MX3000CS
MX3000CS Datasheet
1.0 MX3000CS OPERATION
1.1 Principle of Operation
The MaxxBass algorithm is implemented digitally on a mono L+R signal. The MaxxBass
harmonics are generated in a custom DSP and added back into the original left/right signals as
shown in Figure 1.
Figure 1: MX3000CS Functional Diagram
INL
INR
CAP
REF0
Vref
+
+
OUTL
MaxxBass
On/Off
OUTR
+ ADC
DSP
DAC
MXBSOUT
SDA
SCL
RESET
I2C
OSC1
OSC0
* power and ground pins not shown
All internal clocks are established from a crystal oscillator, ceramic resonator or other clock
source. The relationship between the clock frequency input, sigma delta ADC/DAC converter
clock, DSP sample rate and MaxxBass Frequency is shown in Figure 2.
Figure 2: Clock and Sample Rate Generation
Crystal
Frequency
1/n
1/4
1/64 1/400
Programmable
Clock Divider
(default=1)
Sigma Delta
ADC/DAC
Clock
DSP
Sample
Rate
MaxxBass
Frequency (fc)
July 2006
2 www.maxx.com







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