YSS940 Datasheet | YAMAHA

- - - - - - - - - - - - Supports various types of decoding up to 7.1 channels (5.1/6.1/7.1 channels selectable). 5.1-channel decoding of Dolby Digital (AC-3), DTS, AAC. 6.1-channel decoding of Dolby Digital EX, DTS-ES. DTS 96/24 decoding and audio interface clock division/switching functions. Dolby Pro Logic IIx and DTS Neo:6 decoding Tone control and bass management functions Function modification/expansion by downloading firmware to on-chip memory Lip-sync function that enables synchronization of voice and video with variable voice delay Supports sampling frequencies up to 192 k Hz during PCM playback. 1/2 down sampling function when two PCM channels are played back Dolby Digital/DTS/AAC decode information output function (can be read by microprocessor) High-speed/high-accuracy operation by 32-bit floating-point DSP Operating frequency: 180 MHz (178.176 MHz) Data bus width: 32 bits (24-bit mantissa and 8-bit exponent) Multiplier/adder: 32 bits × 32 bits + 55 bits → 55 bits (47-bit mantissa and 8-bit exponent) No external memory needed (external memory is used when delay is increased.) Eight general I/O ports On-chip PLL for generation of high-speed internal operating clock Supply voltage: 1.2 V (core block) and 3.3 V (pin block) Low power consumption: about 210 m W (standard value during Dolby Digital decoding) Si-gate CMOS process Lead-free plating LQFP144 package (YSS944-VZ, YSS943-VZ, and YSS940-VZ) - - - - - - - [Note] “Dolby,” ”Dolby Pro Logic IIx,” and “AC-3” are trademarks of Dolby Laboratories. “DTS,” “DTS-ES,” “DTS 96/24,” and “DTS Neo:6” are trademarks of Digital Theater Systems, Inc. - Applications - - AV amplifiers for home theaters Car audio systems .. YSS944/943/940 CATALOG CATALOG No.: LSI-4SS944A31 2005.6 YSS944/943/940 - YSS944/943/940 functional parison Decoder functional parison devise function Dolby Digital Dolby Digital EX Dolby Pro Logic IIx AAC DTS DTS 96/24 DTS-ES DTS Neo:6 YSS944 YES YES YES YES YES YES YES YES YSS943 YES YES YES YES...