M65817fp Preliminary

Transcript

MITSUBISHI ICs (SOUND PROCESSOR) M65817FP PRELIMINARY Notice ; This is not a f inal specif ication. some parametric limits are subject to change. STREAM PROCESSOR DESCRIPTION The M65817FP is a Processor f or Digital Amplif ier enable to conv erting extreme accurately v arious Linear PCM Digital Input Signal into Switching Pulse Signal, without Analog Stage. Built-in 24bit Sampling rate conv erter & Digital Gain Control. According to adding to Power Driv er , it realizes Full Digital Amplif ier Sy stem on Extremely Accurate (Cry stal Oscillating Accuracy ). FEATURES • Built-in with 24bit Sampling Rate Conv erter Input Signal Sampling Rate f rom 32kHz to 192kHz(24bit Maximum) Correspond to 4 kinds of Digital Input Format • Built-in L/R Independent Digital Gain Control • Sof t Mute with Exponential Curv e • Correspond to DSD Signal (64Fs 1bit Fs=44.1kHz) • Noise Shaper Output & Rate Conv erter Output • Port Interf ace of Input Data, MCU Interf ace and Input Clock : 3.3V/5V av ailable. Outline 80P6N 0.8mm pitch QFP (20.0mm×14.0mm×2.8mm) APPLICATION • Master Clock Primary C lock : 256Fs/512Fs (Internal Machine Clock,256Fs) Secondary C lock: 1024Fs/512Fs • Input Signal Format: MSB First Right Justif ied (16/20/24bit), MSB First Lef t Justif ied (24bit), LSB First Right Justif ied (24bit), I 2S(24bit) • Input Signal Sampling Rate f rom 32kHz to 192kHz(Continuous) • 8Fs Input Mode :Correspond to External Digital Filter & Rate Conv erter Output • SACD Input • Gain Control Function : +30dB~-∞dB(0.1dB step until -96dB, -138dB Minimum) • Third Order Noise Shaper (6bit/5bit 16Fs) • Noise Shaper Output :Serial f ormat/LRch Independent/WCK(16Fs)/BCK(128Fs) • Rate Conv erter Output : Correspond to Lef t MSB First/LRch Independent/32BCK RECOMMENDED OPERATING CONDITIONS Logic Block : 3.3V±10%, PWM Buf f er Block : 5.0V±10% SYSTEM BLOCK DIAGRAM M65817FP External Input 24bit CD DVD Audio etc. LRCK BCK DATA 256fsi /512fsi SACD DSD Sampling Rate Converter 32kHz Level Control +30dB Noise Shaper -∞ Clock MCU I/F LC Filter Stream Power Driver LC Filter Stream Converter 192kHz DSD Interface Stream Power Driver Clock 1024fs/512fs MITSUBISHI ELECTRIC 1 MITSUBISHI ICs (SOUND PROCESSOR) M65817FP PRELIMINARY Notice ; This is not a f inal specif ication. some parametric limits are subject to change. STREAM PROCESSOR System Block Diagram(S-Master) *a* DIGITAL GAIN CONTROLLER SAMPLING RATE CONVERTER NOISE SHAPER *f* *d* *c* *b* Full Bridge Pre-Driver & POWER DRIVER PULSE GENERATOR *e* LOW PASS FILTER *g* Stream Power Driver Stream Processor M65817FP (Under Development) Correspond to various Linear PCM & Digital *a* 16Fs 1.3µsec @Fs=48kHz • Left Justified MSB First (24bit) • Right Justified MSB First (16/20/24bit) • Right Justified LSB First (24bit) • I2S (24bit) Fs=32kHz~192kHz LRCK Samplig BCK Rate DATA Converter Output Format for Pulse Generator *f* 16fs 63level(6bit) 1024fs Master Clock 1024fs Out(L/R) 1+ DSD Signal 64Fs 1bit FS=44.1kHz Out(L/R) 2+ 20nsec @fs=48kHz *DSD :Direct Stream Digital Full Bridge Power Driver *g* 24bit Sampling Rate Converter *b* • Correspond to any Sampling Rate Data from 32kHz to 192kHz • Realize Full Digital Amplifier System on Extremely Accuracy (Crystal Oscillating Accuracy) LPF LPF Digital Gain Control *c* Digital Volume Muting Function 2816 Steps(+30.069dB ~ -∞) LR Independent Control 0.1dB Step Control Soft Attenuate Function Sampling Rate Converter Exponential Mute Curve Mute Time T=1/2fso Gain Data Realize High Efficiency over 90% Efficancy Output (Signal) Digital Amp. Audio Data X Audio Data Noise Shaper AB-class Amp. Thermal Lost Signal A-class Amp. Noise Shaper Thermal Lost Efficancy Output (Signal) 0% 20% 40% 60% 80% 100% *d* Multi-channel Synchronus Function Adopt the algorithm which had been used on Variable Digital Filter such as High class CD Player. High stability enables to Deviation Rate over 90%, to secure Wide Input Dynamic Range, and realize Wide Output Dynamic Range for Stream Data. Pulse Generator OSC Dolby Digital, Dolby Pro Logic are the registered trademarks of Dolby Laboratory Licensing Corporation. DTS is the trademarks of registered trademarks of Digital Theater Systems, Inc. S-Master is the technology developed by SONY Corporation FsoCKO LRC Analog ADC Switch *e* Adopt the Pulse Generator which had been used such as SACD Player. Complementary PLM Pulse Converter achieve Lower Distortion. Besides Original Construction of Output Buffer realizes extreamly accuracy on Time Domain. 512fs/1024fs DIR M65817FP DSP Dolby Digital ProLogic DTS Surround Internal DVD/CD /SACD MITSUBISHI ELECTRIC Power Driver Bass Management etc. FsoI MASTER LRC Power Driver Power Driver M65817FP FsoI SLAVE LRC M65817FP FsoI SLAVE Power Driver Power Driver Power Driver 2