- 您现在的位置：买卖IC网 > PDF目录98158 > TAS3002 (TEXAS INSTRUMENTS INC) SPECIALTY CONSUMER CIRCUIT, PQFP48 PDF资料下载
参数资料
| 型号： | TAS3002 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封装： | QFP-48 |
| 文件页数： | 17/54页 |
| 文件大小： | 266K |
| 代理商： | TAS3002 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页当前第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页
46
4.10 Dynamic Range Compression/Expansion (DRCE)
The TAS3002 device provides the user with the ability to manage the dynamic range of the audio system. The DRCE
receives data, and affects scaling after the volume/loudness block. As shown in Figure 44, the DRCE is applied after
the volume/loudness control block as a DRCE scale factor. The DRCE must be adjusted such that the signal does
not reach the hard limit value. However, if the signal does reach the maximum digital value, the saturation logic serves
as a hard limiter that does not allow the signal to extend beyond the available range.
SDIN2_L
(7)
2nd Order
IIR Filters
Bass/
Treble
Soft
Volume/
LEFT_OUT
Loudness
(Parametric
Equalization)
(Tone)
LEFT_SUM
SDIN1_L
(Left Channel Mixer)
ANALOGIN_L
(DRCE Scaling)
Saturation
Logic
Dynamic
Range
Control
(Analog in From ADC)
SDIN2_R
(7)
2nd Order
IIR Filters
Bass/
Treble
Soft
Volume/
RIGHT_OUT
Loudness
(Parametric
Equalization)
(Tone)
RIGHT_SUM
SDIN1_R
(Right Channel Mixer)
ANALOGIN_R
(DRCE Scaling)
Saturation
Logic
Figure 44. TAS3002 Digital Signal Processing Block Diagram
The DRCE instruction consists of eight bytes that must be sent each time in the order shown in the example code
of NO TAG. Each instruction downloaded must be eight bytes. If only one byte is changed, all eight bytes must be
transmitted. The first two bytes remain the same for every instruction, however the last six bytes can be programmed
using hexadecimal values from the corresponding tables referred to in Section NO TAG.
With high compression ratios and fast attack times available, this function is suited for a commercial killer in a
television set application.
4.11 AllPass Function
This function is enabled by setting terminal 27 (ALLPASS) on the TAS3002 device to 1. When asserted, the internal
equalization filters are set into AllPass (flat) mode. When this terminal is reset to 0, the equalization filters are returned
to the equalization that was in use before the terminal was asserted.
In AllPass mode, the bass and treble controls are still functional.
This function is frequently used for headphones. When the headphone plug is inserted into its jack, a switched contact
in the jack enables the AllPass function.
The AllPass function also can be activated by writing a 1 to bit 2 of the analog control register.
相关PDF资料 |
PDF描述 |
|---|---|
| TAS3004PFB | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TAS3004PFBR | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TAS3004PFBG4 | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TAS3004PFBRG4 | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| TAS3103DBT | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TAS3002PFB | 功能描述:音频 DSP Digital Audio Processor w/ Codec RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TAS3002PFBG4 | 功能描述:音频 DSP Digital Audio Processor w/ Codec RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TAS3002PFBR | 功能描述:音频 DSP Digital Audio Processor w/ Codec RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TAS3002PFBRG4 | 功能描述:音频 DSP Digital Audio Processor w/ Codec RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TAS3004 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Digital Audio Processor With Codec |
发布紧急采购，3分钟左右您将得到回复。