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參數資料
| 型號： | TLV320DAC3120IRHBT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 24-BIT DAC, PQCC32 |
| 封裝： | 5 X 5 MM, PLASTIC, QFN-32 |
| 文件頁數： | 21/110頁 |
| 文件大小： | 1230K |
| 代理商： | TLV320DAC3120IRHBT |
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SLAS659 – NOVEMBER 2009
www.ti.com
5.2.1.4
Power-Stage Reset
The power-stage-only reset is used to reset the device after an overcurrent latching shutdown has
occurred. Using this reset re-enables the output stage without resetting all of the registers in the device.
Each of the two power stages has its own dedicated reset bit. The headphone power-stage reset is
performed by setting page 1 / register 31, bit D7 for HPOUT. The speaker power-stage reset is performed
by setting page 1 / register 32, bit D7 for SPKP and SPKM.
5.2.1.5
Software Power Down
By default, all circuit blocks are powered down following a reset condition. Hardware power up of each
circuit block can be controlled by writing to the appropriate control register. This approach allows the
lowest power-supply current for the functionality required. However, when a block is powered down, all of
the register settings are maintained as long as power is still being applied to the device.
5.2.2
Audio Analog I/O
The TLV320DAC3120 features a mono audio DAC. It supports a wide range of analog interfaces to
support different headsets and analog outputs. The TLV320DAC3120 interfaces to output drivers (8-
,
16-
, 32-).
5.3
miniDSP
The TLV320DAC3120 features a miniDSP core which is tightly coupled to the DAC. The fully
programmable algorithms for the miniDSP must be loaded into the device after power up. The miniDSP
has direct access to the digital stereo audio stream, offering the possibility for advanced, very
low-group-delay DSP algorithms. The miniDSP has 1024 programmable instructions, 896 data memory
locations, and 512 programmable coefficients (in the adaptive mode, each bank has 256 programmable
coefficients).
5.3.1
Software
Software development for the TLV320DAC3120 is supported through TI's comprehensive PurePath
Studio software development environment, a powerful, easy-to-use tool designed specifically to simplify
software development on Texas Instruments miniDSP audio platforms. The graphical development
environment consists of a library of common audio functions that can be dragged and dropped into an
audio signal flow and graphically connected together. The DSP code can then be assembled from the
graphical signal flow with the click of a mouse. See the TLV320DAC3120 product folder on www.ti.com to
learn more about PurePath Studio and the latest status on available, ready-to-use DSP algorithms.
5.4
Digital Processing Low-Power Modes
The TLV320DAC3120 device can be tuned to minimize power dissipation, to maximize performance, or to
an operating point between the two extremes to best fit the application. The choice of processing blocks,
PRB_P4 to PRB_P22 for mono playback and PRB_R4 to PRB_R18 for mono recording, also influences
the power consumption. In fact, the numerous processing blocks have been implemented to offer a choice
among configurations having a different balance of power-optimization and signal-processing capabilities.
18
APPLICATION INFORMATION
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TLV320DAC3120
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV320DAC3120IRHBT | 制造商:Texas Instruments 功能描述:D/A Converter (D-A) IC 制造商:Texas Instruments 功能描述:IC, DAC, 32BIT, 192KSPS, QFN-32 |
| TLV320DAC32 | 制造商:BB 制造商全稱:BB 功能描述:LOW POWER STEREO AUDIO DAC FOR PORTABLE AUDIO/TELEPHONY |
| TLV320DAC3202 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW POWER HIGH FIDELITY I2S INPUT HEADSET IC |
| TLV320DAC3202BYZJR | 功能描述:音頻數/模轉換器 IC Lo Pwr Hi Fidelity I2S Input Headset IC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| TLV320DAC3202CYZJR | 功能描述:音頻放大器 Low Pwr Hi Fidelity I2S Input Headset IC RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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