Royal BoxExperience

HD

I2S

I2S

I2S

I2C

I2S

I2S

Preset ROM

MicroprocessorInterface

CLOCK, PLL GPIO switch

0 11

FM Synthesizer

SRC192kHz

8kHz〜

SDOUT24bit

YSS952 (SPR-2)

APPLICATION DIAGRAMAPPLICATION DIAGRAM

SPR-2 HDPROGRAMMABLE DSP and FM SYNTHESIZER

Applications

PACKAGEPACKAGE

PLLVDD

SDIN24bit

DVSS

24.576MHz(22.5792MHz)

BOTTOM VIEW5.00mm

0.50mm

5.00mm

YSS952 comes at an affordable price, yet integrates a high-performance programmable 32-bit floating point DSP.

A powered-up AudioEngineTM HD applies acoustics fine-tuning to the response of a specific chassis (Acoustic total-linear EQ). Natural sound which no peers ever achieve can be produced by applying various acoustic effects to this ideal response.

YSS952 comes at an affordable price, yet integrates a high-performance programmable 32-bit floating point DSP.

A powered-up AudioEngineTM HD applies acoustics fine-tuning to the response of a specific chassis (Acoustic total-linear EQ). Natural sound which no peers ever achieve can be produced by applying various acoustic effects to this ideal response.

Flat-screen televisionsKaraoke equipmentPortable devicesDigital stereo componentsPC monitors

Main features and specifications“Acoustic total-linear EQ (also called AEQ)”technology allows fine-tuning of the acoustic response

AUDIO DSP

1.8V

DVDD18

1.8V

IOVDD

3.3V

Long delay memory of 298ms

Karaoke functions

Lip-sync compatibility

Support・Host Controller sample code・SDK for custom firmware・Tool for creating acoustic parameters・Acoustics tuning support

Sophisticated algorithms perform high-precision amplitude compensation and phase compensation.

“Harmonics enhancer Extended (also called HXT)”boosts and compensates the low-frequency regionCutting-edge harmonic synthesis boosts the perceived low-frequency region.

Spacious sound 3D (also called S3D)Generates a broader acoustic space to accompany 3D video.

58 different melodic sounds (in ROM)Easily generate start-up sounds or sound effects.

PBSS952A-002-01-e

3.5mm

3.5mm

QFN32(YSS952-QZ)

AEQ S3D HXT SmoothVolume

DOWN LOAD

CustomF/W

CrossoverFilter

Multi BandDRC Karaoke

Power supply voltage IOVDD 3.0 V to 3.6 VDVDD18，PLLVDD 1.65V to 1.95 Vnon-SRC 48kHz,(44.1kHz)SRC 8 kHz to 192 kHz

48kHz,(44.1kHz)

32bit Floating point DSP75MHz298ms delay RAM

Example: For karaoke

Digital input

Digital output

FM 4-Voice,58typesSound generator

Audio EngineTM HD

HDPROGRAMMABLE DSP and FM SYNTHESIZER

Acoustic total-linear EQ

Spacious sound 3DSoundeffects

Dialog

AUDIO DSPAUDIO DSP

This places movie dialogs in the center while positioning the sound effects not merely to left and right but also in front and behind, enveloping the listener.

Harmonics enhancer ExtendedBoosting the sub-harmonic of bass components and reconstructing mid and treble components lost in audio compressions adds percep-tual depth.

SupportOffers of a sound-parameters creation tool etc. and consulting service by Yamaha acoustic technicians are provided.

Signal Processing FirmwareNumerous varieties are provided, such as those suitable for flat-screen televisions or karaoke applications.

KaraokeThe built-in voice cancellation effect allows casual karaoke enjoyment. Mic echo, reverb, and key control are possible.

Acoustic total-linear EQ is “total linear phase acoustics tuning technology” that compensates for the acoustic response of a specific chassis, not just in the frequency domain but also in the time domain.

No CalibrationConventional

Calibration(PEQ, GEQ etc..)

Semiconductor Div. 203 Matsunoki-jima, Iwata, Shizuoka 438-0192 Japan

Customer ServiceHead Quarter TEL：0539-62-4918 FAX：0539-62-5054Tokyo Office TEL：03-5488-5431 FAX：03-5488-5088Osaka Office TEL：06-6465-0325 FAX：06-6465-0391

The content is subject to change without notice.Unauthorized use of this document is prohibited.These introductory informations cannot be used for designs.Check with us for technical ones.Brand and product names used are trademarks of their respective holders.

•••

•http://www.yamaha.co.jp/product/lsi/

Created in Aug. 2012 Document Code：PBSS952A-002-01-e

SRC

Melody Sound Generator

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Leve

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Lip

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Voic

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Key

Shift

Tone

Con

trol

Mus

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EQ

Tone

Con

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Mic

PEQ

DSP

Ech

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Smoo

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lume

Smoo

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lume

Phan

tom

3D

Cros

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l2 S l2 Sl2 Sl2 S

Yamaha's acoustics tuning technology ensures natural sound and spaciousness“Acoustic total-linear EQ”

ON

OFF

Examples of the test signal spectrum

Freq

uenc

y

TimeThis is bandwidth expansion technology utilizingthe missing fundamental perceptions.*