參數(shù)資料
型號: RSC-412864LQFP
廠商: Electronic Theatre Controls, Inc.
英文描述: Speech Recognition Processor
中文描述: 語音識別處理器
文件頁數(shù): 26/49頁
文件大?。?/td> 690K
代理商: RSC-412864LQFP
RSC-4128
Data Sheet
26
P/N 80-0206-J
2004 Sensory Inc.
Digital Transfer Functions
Lowpass response
Detail of passband
Attenuation
Min
0
3 dB
87.82
53
Frequency
Below 8 kHz
9.395 kHz
20 kHz
Above 20 kHz
Max
1.18
NOTE: A 1uF capacitor should be connected to AMPCOM and tied to GND, a 2.2uF should be connected to VCM
and tied to GND, and a 0.1uF capacitor should be connected to VREF and tied to GND. Failure to connect this
capacitors will substantially degrade ADC performance, and Sensory Speech 7 technology.
A/D Conversion
The amplified signal is processed by a delta-sigma A/D converter that provides a 1-bit over-sampled digital signal.
This digital stream is filtered and decimated to produce 16-bit samples at the fixed rate of 18,636 samples per
second. The 16 bit signal will have about 12.5 bits of dynamic range, with about 10 bits above the noise level.
These samples are then provided to the RSC-4128 digital filter unit formatted as signed two’s-complement 16-bit
values. The samples are stored in the digital filter input registers “adcSampleHi” (register F5) and “adcSampleLo”
(register F4).
Note: Using the AFE for general purposes other than as intended in Sensory Speech 7 technology modules may
conflict with Sensory Speech 7. Such conflicts may adversely impact Sensory Speech 7 functionality and/or the
functionality of the general purpose application. Care should be taken to avoid such conflicts. Contact Sensory
Technical Support for help in this area.
Audio Wakeup
The Audio Wakeup unit is an analog/digital circuit that can be configured to wakeup from one of four specific audio
events:
1) Two handclaps, or any two sharp, closely spaced sounds
2) Three handclaps, or any three sharp, closely spaced sounds
3) A whistle
4) Any “l(fā)oud” sound above a specified amplitude, with duration options of 1 or 2 seconds
相關(guān)PDF資料
PDF描述
RSC4128 Speech Recognition Processor
RT1A3906
RT1N44BC TRANSISTOR
RT1N44BM TRANSISTOR
RT1N44BS TRANSISTOR
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