參數(shù)資料
型號(hào)： TAS3001CPWG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻控制
英文描述： 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
封裝： GREEN, PLASTIC, TSSOP-28
文件頁(yè)數(shù)： 30/55頁(yè)
文件大小： 432K
代理商： TAS3001CPWG4
85
Figure 86 shows the filters that were used to equalize the loudspeaker response.
Figure 86. Equalization Filters
8.5
Speaker Correction and Equalization
Digital filters are able to provide a fairly broad range of filter types and responses.
The TAS3001 contains six programmable filters. The system designer has the choice of using one to all six of these
filters. The filters can be used to equalize response peaks and dips from a desired response. They can also be used
to shape the loudspeaker phase response. Because of their available precision and temperature insensitivity, not only
can the filters be used to equalize the frequency and phase response of a loudspeaker closely, but they also can be
used to remove resonances or other small deviations in the response of a loudspeaker surgically. This permits the
system designer a greater degree of flexibility in the design of both the individual loudspeaker drivers and the cabinet.
If additional filtering is needed, multiple TAS3001s can be cascaded.
This enables greater freedom in the design of acoustical systems. The TAS3001 permits additional flexibility in
transducer design. Overall flatness of a transducer response is no longer an overriding concern with the
low-cost/high-performance frequency correction of the TAS3001. The constraints on the transducer design can be
relaxed so that they provide optimum performance after correction. This, in turn, allows the transducer and its
equalization to be designed as a system, providing wide flexibility in the design and achieving outstanding sound
presentation.
8.6
The TAS3001 Can Implement Nearly Any Second-Order IIR Filter
Filter designs can tax computational resources, so it is not uncommon to see simplified filter implementations that
must limit either the number of or the nature of the filters that can be implemented. For example, a particular
architecture might impose limits on the gains, Qs, and/or center frequencies that can be implemented. This, however,
is not the case with the TAS3001. Its high-precision, patent-pending structure allows implementation of almost any
second-order IIR filter. These are implemented in an almost limitless range of filter functions without fear of
degradation due to limit cycles or increased system noise.
Additionally, higher order filters can be developed by factoring the desired filter into consecutive multiple
second-order sections. Similarly, any filter that has been designed in analog can be converted and implemented as
a digital filter.
相關(guān)PDF資料
PDF描述
TAS3001CPW 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
TAS3002 SPECIALTY CONSUMER CIRCUIT, PQFP48
TAS3004PFB SPECIALTY CONSUMER CIRCUIT, PQFP48
TAS3004PFBR SPECIALTY CONSUMER CIRCUIT, PQFP48
TAS3004PFBG4 SPECIALTY CONSUMER CIRCUIT, PQFP48
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TAS3001CPWR 功能描述:音頻 DSP Stero Audio Digital Equalizer RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TAS3001CPWRG4 功能描述:音頻 DSP Stero Audio Digital Equalizer RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
TAS3001EVM 制造商:Texas Instruments 功能描述:TAS3001 EVALUATION BOARD - Bulk
TAS3001IN WAF 制造商:Texas Instruments 功能描述:
TAS3002 制造商:TI 制造商全稱:Texas Instruments 功能描述:Digital Audio Processor With Codec
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