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參數資料
型號： TLV320AIC3107IRSBR
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： 2 CHANNEL, AUDIO AMPLIFIER, PQCC40
封裝： 5 X 5 MM, 0.40 MM PITCH, GREEN, PLASTIC, WQFN-40
文件頁數： 28/99頁
文件大小： 1474K
代理商： TLV320AIC3107IRSBR
ANALOG OUTPUT COMMON-MODE ADJUSTMENT
AUDIO DAC POWER CONTROL
SLOS545C – NOVEMBER 2008 – REVISED MARCH 2009 .............................................................................................................................................. www.ti.com
The output common-mode voltage and output range of the analog output are determined by an internal bandgap
reference, in contrast to other codecs that may use a divided version of the supply. This scheme is used to
reduce the coupling of noise that may be on the supply (such as 217-Hz noise in a GSM cellphone) into the
audio signal path.
However, due to the possible wide variation in analog supply range (2.7 V – 3.6 V), an output common-mode
voltage setting of 1.35 V, which would be used for a 2.7 V supply case, will be overly conservative if the supply is
actually much larger, such as 3.3 V or 3.6 V. In order to optimize device operation, the TLV320AIC3107 includes
a programmable output common-mode level, which can be set by register programming to a level most
appropriate to the actual supply range used by a particular customer. The output common-mode level can be
varied among four different values, ranging from 1.35 V (most appropriate for low supply ranges, near 2.7 V) to
1.8 V (most appropriate for high supply ranges, near 3.6 V). Note that there is also some limitation on the range
of DVDD voltage as well in determining which setting is most appropriate.
Table 4. Appropriate Settings
CM SETTING
RECOMMENDED AVDD_DAC,
RECOMMENDED DVDD
DRVDD
1.35
2.7 V – 3.6 V
1.525 V – 1.95 V
1.50
3.0 V – 3.6 V
1.65 V – 1.95 V
1.65 V
3.3 V – 3.6 V
1.8 V – 1.95 V
1.8 V
3.6 V
1.95 V
The stereo DAC can be fully powered up or down, and in addition, the analog circuitry in each DAC channel can
be powered up or down independently. This provides power savings when only a mono playback stream is
needed.
34
Copyright 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3107
相關PDF資料
PDF描述
TLV320AIC3107YZFR 2 CHANNEL, AUDIO AMPLIFIER, PBGA42
TLV320AIC3110IRHBR AUDIO AMPLIFIER, PQCC32
TLV320AIC3110IRHBT AUDIO AMPLIFIER, PQCC32
TLV320AIC3111IRHBT AUDIO AMPLIFIER, PQCC32
TLV320AIC3111IRHBR AUDIO AMPLIFIER, PQCC32
相關代理商/技術參數
參數描述
TLV320AIC3107IRSBT 功能描述:接口—CODEC Low Pwr Stereo CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
TLV320AIC3107IYZFR 功能描述:接口—CODEC Low-Pwr Stereo CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
TLV320AIC3107IYZFT 功能描述:接口—CODEC Low-Pwr Stereo CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
TLV320AIC3107YZFR 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-POWER STEREO CODEC WITH INTEGRATED MONO CLASS-D SPEAKER AMPLIFIER
TLV320AIC3110 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Power Audio Codec With Audio Procsessing and Stereo Class-D Speaker Amplifier
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