參數(shù)資料
型號(hào)： TLV320ALC23
廠商： Texas Instruments, Inc.
元件分類： Codec
英文描述： Evaluation Platform for the TLV320ALC23 Stereo Audio CODEC and TLV230DAC23 Stereo DAC
中文描述： 評(píng)估平臺(tái)為TLV320ALC23 DAC的立體聲音頻編解碼器和立體聲TLV230DAC23
文件頁(yè)數(shù)： 22/46頁(yè)
文件大?。?/td> 452K
代理商： TLV320ALC23
SLAS428 AUGUST 2004
www.ti.com
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PO Output Power mW
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2.402 VPP
Figure 17. THD vs Output Power Delivered to an an 8- Load (25 C, AVDD = DRVDD = 3.3 V, DVDD = 1.8
V, DAC Output Swing Set to 2 V and 2.4V, and Short-Circuit Protection Disabled)
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Figure 18. THD vs AVDD, DRVDD Supply Voltage (25 C When Driving a 1 dB, 1-kHz Sinewave From the
DAC Into an 8- Load, with DAC Output Swing Set to 2.4 V, and Short-Circuit Protection Disabled)
The ’DAC26 incorporates a programmable short-circuit detection/protection function with different modes of operation.
During the insertion or removal of a headphone plug from the jack, the output pins of the drivers may be accidentally shorted,
causing the part to potentially draw a huge current, which may cause the power supply voltages to dip. Bits D8D7 of
REG1DH/Page2 control how the short-circuit detection/protection operates in the ’DAC26. One option is to fully disable
short-circuit protection, which also enables the audio output drivers to deliver more power to a low-impedance load (such
as an 8-
speaker). However, care must be taken to prevent any short-circuit from occurring while the part is in this mode.
A second programmable configuration enables current-limiting in the audio output drivers, so that excessive currents
cannot be provided if the outputs are shorted. It also enables the internal short-circuit detection function, which can detect
excess current being drawn from the drivers and set a short-circuit detect flag (Page2, REG1DH, bit D6). This flag can
be read by the user to power down the drivers if desired. This flag is cleared only if the short-circuit condition is removed.
If the user does not monitor this flag and powers down the drivers when a short-circuit occurs, the current-limiting prevents
excessive currents from being drawn, but power dissipation is higher due to this limited current flowing through the short.
相關(guān)PDF資料
PDF描述
TLV320AIC14C PRODUCT NOTIFICATION
TLV320AIC14I PRODUCT NOTIFICATION
TLV320DAC23IGQE STEREO AUDIO D/A CONVERTER, 8-TO 96KHZ WITH INTERGRATED HEADPHONE AMPLIFIER
TLV320AIC25IPFBR Layout and Grounding Guidelines for TLV320AIC2x
TLV320AIC25IPFBRG4 Layout and Grounding Guidelines for TLV320AIC2x
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV320ALC31 制造商:BB 制造商全稱:BB 功能描述:LOW POWER STEREO AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY
TLV320DA26IRHBG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Lo-Pwr Ster DAC w/Hdphn/Spkr Amp 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
TLV320DAC23 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO AUDIO D/A CONVERTER, 8-TO 96KHZ WITH INTERGRATED HEADPHONE AMPLIFIER
TLV320DAC23_07 制造商:TI 制造商全稱:Texas Instruments 功能描述:Stereo Audip D/A Converter, 8-to 96 kHz With intergrated haeadphone Amplifier
TLV320DAC23GQE 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Low-Power Portable Aud Converter 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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