- 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： | 30/54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页当前第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
72
Clears all the registers in the circuits
Purges the codec
Selects analog input A (RINA and LINA) and sets the input A active indicator (INPA) low
Initializes the equalization parameters to AllPass filters
Sets the digital audio interface to the I2S 18-bit mode
Sets the bass/treble to 0 dB
Sets the mixer gain to 0 dB SDIN1 and mutes both SDIN2 and analog-in
Sets the volume to –40 dB
Turns off all enhancement features (DRCE, etc.)
Reads the I2C address. If the address is 68h, the device reads its EEPROM. It is possible to load the
user-defined bass/treble data and break points (optional). If there is no data, the device loads default
bass/treble delta and break points from ROM.
If the address is 6Ah, the device puts the I2C interface in slave mode and waits for input.
7.2.3
Reset Circuit
Because the TAS3002 device has an internal power-on reset (POR), in many cases, additional components are not
needed to reset the device. It resets internally at approximately 80% of VDD.
In the case where the system power supplies are slow in reaching their final voltage or where there is a difference
in the time the system power supplies take to become stable, the TAS3002 reset can be delayed by a simple RC
circuit.
0.1
F
DVDD
6
TAS3002
RESET
10 k
DVSS
Figure 71. TAS3002 Reset Circuit
The reset delay for the above circuit can be calculated by the simple equation:
trd = 0.8RC + 400 s
Where:
trd = The delay before the TAS3002 device comes out of reset
C = Value of the capacitance from RESET (pin 6) to DVSS
R = Value of the resistance from RESET (pin 6) to DVDD
The circuit described in Figure 71 delays the start-up of the TAS3002 device approximately 1.2 ms.
When it is necessary to control the reset of the TAS3002 device with an external device, such as a microcontroller,
RESET (pin 6) can be treated as a logic signal. It then brings the device out of reset when the voltage on RESET
reaches VDD/2.
7.2.4
Fast Load Mode
While in fast load mode—FL bit (bit 7 of main control register 1) = 0—it is possible to update the parametric
equalization without any audio processing delay. The audio processor pauses while the RAM is updated in this mode.
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。