器件名称: ST3004
功能描述: Speech Decoder/Encoder
文件大小: 421.48KB 共11页
简 介:ST
ST3004
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.
1. FEATURES
n n DSP based voice/audio processor Operation voltage – Core logic: 2.25V~2.7V – I/O pads: 3.0V~3.6V Voltage regulator for core logic Low Voltage Reset (LVR) _ 2.5V low voltage reset One PLL to generate high system frequency from a 4MHz source _ 12M~28MHz PLL output Tow clock sources _ Crystal...........................................................4MHz _ External input...… … … … … … … … … … … ......4MHz Low power down current _Typical current: 3uA One 16-bit programmable Timer One clocking output One external interrupt _ Edge/level trigger supported One 14-bit direct-drive DAC – Maximum current: 145mA n MCU interfaces _ Serial mode _ Parallel mode Two Serial PORT interfaces(SP) _ Programmable data length from 8-bit to 16-bit _ I2S, Left/Right Justified interfaces to external DAC/ADC 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 _ 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 _ TTS _ LPC _ RS-Word _ RS-PY _ Time stretch (half~double speed)
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2. GENERAL DESCRIPTION
The ST3004 is a highly integrated and c……
