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參數(shù)資料
| 型號(hào)： | TAS5012IPFBG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | GREEN, PLASTIC, TQFP-48 |
| 文件頁數(shù)： | 18/19頁 |
| 文件大?。?/td> | 245K |
| 代理商： | TAS5012IPFBG4 |
TAS5012
SLES006A – SEPTEMBER 2001 – REVISED DECEMBER 2001
8
www.ti.com
functional description (continued)
Initialization
Normal State
MUTE
VALID_L
5 ms max
10
s Maximum
50–50 Duty Cycle
(P, M Complementary)
Inactive State
VALID_R
PWM Outputs
(P, M Complementary)
Figure 5. Mute Timing
double speed
Double-speed mode is used to support sampling rates of 88.2 kHz and 96 kHz. In order to put the TAS5012 in
double-speed mode with the device in normal operating conditions, the RESET pin must be held low while switching
the DBSPD pin high. After the RESET pin is brought high again, a reset sequence takes place. If the change is at
power up, a power-up sequence is originated.
quad speed
Quad-speed mode is used to support sampling rates of 176.4 kHz and 192 kHz. It is supported in slave mode only.
In order to put the TAS5012 in quad-speed mode, M_S and DBPSB pins are brought low. Quad-speed mode is then
automatically detected due to the fact that it is the only mode in which MCLK_IN is 128Fs. DEM_SEL must be set
to low when operating in the quad-speed mode.
de-emphasis filter
For audio sources that have been preemphasized, a precision 50-
s/15-s de-emphasis filter is provided to support
the sampling rates of 44.1 kHz and 48 kHz. Pins DEM_SEL and DEM_EN select the de-emphasis functions. See
Figure 6 for a graph showing the de-emphasis filtering characteristics. See Table 3 for de-emphasis selection.
0
–10
Response
–
dB
3.18 (50
s)
10.6 (15
s)
f – Frequency – kHz
De-emphasis
Figure 6. De-Emphasis Filter Characteristics
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5012IPFBR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TRUE DIGITAL AUDIO AMPLIFIER TAS5012 DIGITAL AUDIO PWM PROCESSOR |
| TAS5012PFB | 功能描述:音頻 DSP Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS5012PFBG4 | 功能描述:音頻 DSP Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS5012PFBR | 功能描述:音頻 DSP Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS5012PFBRG4 | 功能描述:音頻 DSP Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
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