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| 型号： | TSC2100IDAR |
| 厂商： | Texas Instruments, Inc. |
| 元件分类： | Codec |
| 英文描述： | PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH INTEGRATED STEREO AUDIO CODEC AND HEADPHONE/SPEAKER AMPLIFIER |
| 中文描述： | 可编程触摸屏控制器，它集成立体声音频编解码器和耳机/扬声器放大器 |
| 文件页数： | 25/71页 |
| 文件大小： | 717K |
| 代理商： | TSC2100IDAR |
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SLAS378 NOVEMBER 2003
www.ti.com
25
ADC/DAC SAMPLING RATE
The Audio Control 1 register (Register 00H, Page2) determines the sampling rates of the audio DAC and ADC, which
are scaled down from a reference rate (Fsref). The ADC and DAC can operate with either a common LRCK (equal
sampling rates) or separate ADWS and LRCK (unequal sampling rates). When the audio codec is powered up, it is by
default configured as an I
2
S slave with both the DAC and ADC operating at Fsref.
WORD SELECT SIGNALS
The word select signal (LRCK, ADWS) indicates the channel being transmitted:
LRCK/ADWS = 0: left channel for I2S mode
LRCK/ADWS = 1: right channel for I2S mode
For other modes see the timing diagrams below.
Bitclock (BCLK) Signal
In addition to flexibility as master or slave mode, the BCLK can also be configured in two transfer modes—256S and
Continuous Transfer Modes, which are described below. These modes are set using BITD12/REG06h/Page2.
256S TRANSFER MODE
In the 256S mode, the BCLK rate always equals 256 times the maximum of the LRCK and ADWS frequencies. In the
256S mode, the combination of 48 ksps sampling rate (as selected by BITD13/REG06h/Page2) and leftjustified
mode is not supported.
CONTINUOUS TRANSFER MODE
In the continuous transfer mode, the BCLK rate always equals two times the word length of the maximum of the LRCK
and ADWS frequencies.
RIGHT-JUSTIFIED MODE
In right-justified mode, the LSB of the left channel is valid on the rising edge of the BCLK preceding the falling edge of
ADWS or LRCK. Similarly the LSB of the right channel is valid on the rising edge of the BCLK preceding the rising edge
of ADWS or LRCK.
BCLK
ADWS/
LRCK
DIN/
DOUT
n
n1
1
0
0
n
n1
1
0
LSB
MSB
n2
2
2
n2
1/fs
Left Channel
Right Channel
Figure 23. Timing Diagram for Right-Justified Mode
LEFT-JUSTIFIED MODE
In leftjustified mode, the MSB of the right channel is valid on the rising edge of the BCLK, following the falling edge of
ADWS or LRCK. Similarly the MSB of the left channel is valid on the rising edge of the BCLK following the rising edge of
ADWS or LRCK.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TSC2100IDARG4 | 功能描述:触摸屏转换器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| TSC2100IRHB | 功能描述:触摸屏转换器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| TSC2100IRHBG4 | 功能描述:触摸屏转换器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| TSC2100IRHBR | 功能描述:触摸屏转换器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| TSC2100IRHBRG4 | 功能描述:触摸屏转换器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
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