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參數(shù)資料
| 型號： | TSC2302IRGZ |
| 元件分類： | Codec |
| 英文描述： | PROGRAMMABLE TOUCH SCREEN CONTROLLER WITH STEREO AUDIO CODEC |
| 中文描述： | 可編程觸摸屏控制器，立體聲編解碼器 |
| 文件頁數(shù)： | 58/81頁 |
| 文件大?。?/td> | 1211K |
| 代理商： | TSC2302IRGZ |
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www.ti.com
TSC2302
SLAS394–JULY 2003
AUDIO CODEC
Audio Analog I/O
The TSC2302 has one pair of stereo inputs, LLINEIN and RLINEIN, and one mono audio input, MICIN. The part
also has a stereo headphone output amplifier capable of driving a 16-
load at up to 30 mW/channel, HPL and
HPR. Finally, the part includes a mono output capable of driving a 10-k
load, MONO.
The common-mode voltage, VCM, used by the audio section can be powered up independently by the AVPD bit
(Bit 14, Reg 05h, Pg 2). Because the audio outputs are biased to this voltage, this voltage is slowly ramped up
when powered on, and there is an internally programmed delay of approximately 500 ms between powering up
this voltage and unmuting the analog audio signals of the TSC2302, in order to avoid pops and clicks on the
outputs. It is recommended to keep VCM powered up if the 500-ms delay is not tolerable.
Audio Digital I/O
Digital audio data samples can be transmitted between the TSC2302 and the CPU via the I
2
S bus (BCLK,
LRCLK, I2SDIN, I2SDOUT). However, all registers, including those pertaining to audio functionality, are only
accessible via the SPI bus. The I
2
S bus operates only in slave mode, meaning the BCLK and LRCLK must be
provided as inputs to the part. Four programmable modes for this serial bus are supported and can be set
through the I2SFM bits (Bits[1:0], Reg 00h, Pg 2) .
PCM Audio Interface
The 4-wire digital audio interface for TSC2302 is comprised of BCLK (pin 24), LRCLK (pin 25), I2SDIN (pin 26),
and I2SDOUT (pin 27). For the TSC2302, these formats are selected through the I2SFM bits in Reg 00h, Pg 2.
The following figures illustrate audio data input/output formats and timing.
The TSC2302 can accept 32-, 48-, or 64-bit clocks (BCKIN) in one clock of LRCIN. Only 16-bit data formats can
be selected when 32-bit clocks/LRCIN are applied.
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| TSC2302IRGZG4 | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2302IRGZR | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2302IRGZRG4 | 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-Wire w/20-Bit Stereo Audio Codec RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2303IZQZ | 制造商:Texas Instruments 功能描述: |
| TSC2303IZQZR | 制造商:Texas Instruments 功能描述: |
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