ST3010 Datasheet, PDF (1/13 Pages) Sitronix Technology Co., Ltd. – Audio Decoder/Encoder

ST
ST3010
Audio 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
24-bit 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
3MHz source
_ 12M~30MHz PLL output
Tow clock sources
_ Crystal...........................................................3MHz
_ External input...……………………………......3MHz
Low power down current
_Typical current: 3uA
One 16-bit programmable Timer
One clocking output
One external interrupt
_ Edge/level trigger supported
One 16-bit direct-drive DAC
– Maximum current: 145mA
MCU interfaces
_ 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
Function List
_LBRC playback (1.2Kbps, 1.6Kbps, 2.4Kbps for 8KHz)
(1.6Kbps, 2.2Kbps, 3.3Kbps for 11KHz)
1. AB-Repeat
2. Time stretch
(speed up x2, speed down x2)
3. Combine syllable
_Audio Playback (CBR, VBR-- all bit rate)
1. Forward/Backward play , AB-Repeat
2. Encryption
3. Spectrum gain
4. Time stretch
(speed up x1.5, speed down x1.5)
5. Combine syllable
_Wav Playback
1. Forward/Backward play, AB-Repeat
_Wav Record {MS-ADPCM(3.8:1)}
1. Software AGC
2. GENERAL DESCRIPTION
The ST3010 is a highly integrated and cost-effective 24-bit
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) for voice playback
and audio playback.
System clock comes from 3MHz crystal or external input.
ST3010 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 16-bit 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.
Ver 0.7
1/13
2007-06-14