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ST3006 Datenblatt(PDF) 1 Page - Sitronix Technology Co., Ltd. |
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ST3006 Datenblatt(HTML) 1 Page - Sitronix Technology Co., Ltd. |
1 / 11 page ST ST3006 Speech Decoder/Encoder Notice: Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice. This is not a final specification. Some parameters are subject to change. Ver 0.1 1 /11 2007-06-12 1 1.. F FE EA AT TU UR RE ES S n DSP based voice/audio processor n Operation voltage – Core logic: 2.25V~2.7V – I/O pads: 3.0V~3.6V n Voltage regulator for core logic n Low Voltage Reset (LVR) _ 2.5V low voltage reset n One PLL to generate high system frequency from a 4MHz source _ 12M~28MHz PLL output n Triple clock sources _ Crystal...........................................................4MHz _ External input...…………………………… ......4MHz n Low power down current _Typical current: 3uA n One 16-bit programmable Timer n One clocking output n One external interrupt _ Edge/level trigger supported n One 16-bit direct-drive DAC – Maximum current: 145mA n MCU interfaces _ Serial mode _ Parallel mode n Two Serial Port interfaces(SP) _ Programmable data length from 8-bit to 16-bit _ I2S, Left/Right Justified interfaces to external DAC/ADC n Speech playback/recorder _ Low Bit Rate Compression (LBRC) _ 1.2K/1.6K/2.4Kbps@8KHz playback _ 1.6K/2.2K/3.3Kbps@11.025KHz playback _ Middle Bit Rate Compression (MBRC) _ 5.4K/6.4Kbps@8KHz playback _ 7.4K/8.8Kbps@11.025KHz playback _ High Bit Rate Compression (HBRC) _ 12K/16K/24Kbps@8KHz playback _ 16.5K/22K/33Kbps@11.025KHz playback _ 24K/32K/48Kbps@16KHz playback _ 12k/16k/24kbps@8KHz encoder _ PCM playback _ Time stretch (half~double speed) _ TTS _ RS-Word _ RS-PY 2 2.. G GE EN NE ER RA AL L D DE ES SC CR RIIP PT TIIO ON N The ST3006 is a highly integrated and cost-effective DSP based audio processor for various consumer applications. It consists of one powerful DSP for advanced voice decoder and encoder algorithms of natural speech with less memory. It provides low bit rate compression (LBRC) and middle bit rate (MBRC) for voice playback and high bit rate compression (HBRC) for audio or better voice quality. Both LBRC/MBRC and HBRC can playback simultaneously. For encoder, it has capability to compress PCM raw data from MCU and send back encoded data to MCU. ST3006 can adjust playback frequency (half~double speed) without pitch shifting. TTS, RS-Word, and RS_PY algorithms are also available for various voice applications. System clock comes from 4MHz crystal or external input. ST3006 has 32 I/Os and these can be either GPIO or functional pins. Each pin can be programmed to input or output. One external interrupt pin can be requested by external devices. One internal 16bit DAC can provide significant volume equipping with internal amplifier. For particular application or recorder, two general audio interfaces are supported to interface with external DAC/ADC. Audio interface can be configured to I2S or Left/Right Justified compatible mode. There are serial and parallel interfaces for various connections with different MCUs. |
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