參數(shù)資料
型號(hào)： TLV320DAC3101IRHBR
廠商： TEXAS INSTRUMENTS INC
元件分類： DAC
英文描述： DAC WITH PROGRAMMABLE PLL, PQCC32
封裝： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁(yè)數(shù)： 17/100頁(yè)
文件大?。?/td> 1281K
代理商： TLV320DAC3101IRHBR
www.ti.com
SLAS666 – JANUARY 2010
5.4
Analog Signals
The TLV320DAC3101 analog signals consist of:
Microphone bias (MICBIAS)
Analog inputs AIN1 and AIN2
Analog outputs class-D speaker driver and headphone/lineout driver providing output capability for the
DAC, AIN1, AIN2 or a mix of the three
5.4.1
MICBIAS
The TLV320DAC3101 includes a microphone bias circuit which can source up to 4 mA of current and is
programmable to a 2-V, 2.5-V, or AVDD level. The level can be controlled by writing to page 1 /
register 46, bits D1–D0. This functionality is shown in Table 5-10.
Table 5-10. MICBIAS Settings
D1
D0
FUNCTIONALITY
0
MICBIAS output is powered down.
0
1
MICBIAS output is powered to 2 V.
1
0
MICBIAS output is powered to 2.5 V.
1
MICBIAS output is powered to AVDD.
During normal operation, MICBIAS can be set to 2.5 V for better performance. However, depending on the
model of microphone that is selected, optimal performance might be obtained at another setting, so the
performance at a given setting should be verified.
The lowest current consumption occurs when MICBIAS is powered down. The next-lowest current
consumption occurs when MICBIAS is set at AVDD.
5.4.2
Analog Inputs AIN1 and AIN2
AIN1 (pin 13) and AIN2 (pin 14) are inputs to the output mixer along with the DAC output. Page 1 /
register 36 provides control signals for determining the signals routed through the output mixer. The output
of the output mixer then can be attenuated or gained through the class-D and/or headphone/lineout
drivers.
5.5
Audio DAC and Audio Analog Outputs
Each channel of the stereo audio DAC consists of a digital audio processing block, a digital interpolation
filter, a digital delta-sigma modulator, and an analog reconstruction filter. This high oversampling ratio
(normally DOSR is between 32 and 128) exhibits good dynamic range by ensuring that the generated
quantization noise stays outside of the audio frequency band. Audio analog outputs include stereo
headphone/lineouts and stereo class-D speaker outputs.
Copyright 2010, Texas Instruments Incorporated
APPLICATION INFORMATION
23
Product Folder Link(s): TLV320DAC3101
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV320DAC3101IRHBT 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Low-Pwr audio DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
TLV320DAC3120 制造商:TI 制造商全稱:Texas Instruments 功能描述:
TLV320DAC3120_10 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Power Mono Audio DAC With Embedded miniDSP and Mono Class-D Speaker Amplifier
TLV320DAC3120EVM-U 功能描述:音頻 IC 開發(fā)工具 TLV320DAC3120EVM-U Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
TLV320DAC3120IRHBR 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Lo-Pwr Audio DAC w/ Audio Proc RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
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