参数资料
型号: PCM1792DB
厂商: Texas Instruments
文件页数: 11/61页
文件大小: 0K
描述: IC 24BIT AUDIO STEREO DAC 28SSOP
产品培训模块: Data Converter Basics
标准包装: 47
位数: 24
数据接口: I²C,串行,SPI?
转换器数目: 2
电压电源: 模拟和数字
工作温度: -25°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 管件
输出数目和类型: 2 电压,单极
采样率(每秒): 200k
产品目录页面: 903 (CN2011-ZH PDF)
其它名称: 296-15313-5
PCM1792
SLES069B MARCH 2003 REVISED NOVEMBER 2006
www.ti.com
19
External Digital Filter Interface and Timing
The PCM1792 supports an external digital filter interface comprising a 3- or 4-wire synchronous serial port, which
allows the use of an external digital filter. External filters include the Texas Instruments’ DF1704 and DF1706, the
Pacific Microsonics PMD200, or a programmable digital signal processor.
In the external DF mode, LRCK (pin 4), BCK (pin 6) and DATA (pin 5) are defined as WDCK, the word clock; BCK,
the bit clock; and DATA, the monaural data. The external digital filter interface is selected by using the DFTH bit of
control register 20, which functions to bypass the internal digital filter of the PCM1792.
When the DFMS bit of control register 19 is set, the PCM1792 can process stereo data. In this case, ZEROL (pin 1)
and ZEROR (pin 2) are defined as L-channel data and R-channel data, respectively.
Detailed information for the external digital filter interface mode is provided in the APPLICATION FOR EXTERNAL
DIGITAL FILTER INTERFACE section of this data sheet.
Direct Stream Digital (DSD) Format Interface and Timing
The PCM1792 supports the DSD-format interface operation, which includes out-of-band noise filtering using an
internal analog FIR filter. For DSD operation, SCK (pin 7) is redefined as BCK, DATA (pin 5) as DATAL (left channel
audio data), and LRCK (pin 4) as DATAR (right channel audio data). BCK (pin 6) must be forced low in the DSD mode.
The DSD-format interface is activated by setting the DSD bit of control register 20.
Detailed information for the DSD mode is provided in the APPLICATION FOR DSD-FORMAT (DSD MODE)
INTERFACE section of this data sheet.
TDMCA Interface
The PCM1792 supports the time-division-multiplexed command and audio (TDMCA) data format to enable control
of and communication with a number of external devices over a single serial interface.
Detailed information for the TDMCA format is provided in the TDMCA Format section of this data sheet.
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PCM1792DB 制造商:Texas Instruments 功能描述:24BIT AUDIO DAC SMD 1792 SSOP28
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PCM1792DBR 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel
PCM1792DBRG4 功能描述:音频数/模转换器 IC 24-Bit 192kHz Smplng Adv Stg Stereo DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel
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