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參數(shù)資料
| 型號(hào)： | TAS5015PFB |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, TQFP-48 |
| 文件頁數(shù)： | 20/20頁 |
| 文件大?。?/td> | 266K |
| 代理商： | TAS5015PFB |
TAS5015
SLES017 SEPTEMBER 2001
9
www.ti.com
functional description (continued)
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
de-emphasis selection
De-emphasis selection is accomplished by using the DEM_SEL and DEM_EN pins. See Table 3 for
de-emphasis selection description.
Table 3. De-Emphasis Selection
DEM_SEL
DEM_EN
DESCRIPTION
0
De-emphasis disabled
0
1
De-emphasis enabled for Fs = 44.1 kHz
1
De-emphasis enabled for Fs = 48 kHz
1
0
Disallowed state. Do not use.
error status reporting (VALID_L and VALID_R)
The following is a list of the error conditions that will cause the VALID_L and VALID_R pins to be asserted low.
No clocks
Clock phase errors
When either of the above conditions is met, the VALID_L and VALID_R goes low and the PWM outputs go to
the hard mute state. If the error condition is removed, the TAS5015 is reinitialized and the VALID_L and VALID_R
pins are asserted high.
serial interface formats
The TAS5015 is compatible with eight different serial interfaces. Available interface options are IIS, right
justified, left justified, and DSP frame. Table 4 indicates how these options are selected using the MOD0, MOD1,
and MOD2 pins.
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| TAS5015PFBG4 | 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 |
| TAS5026 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SIX CHANNEL DIGITAL AUDIO PWM PROCESSOR |
| TAS5026A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Six-Channel Digital Audio PWM Processor |
| TAS5026APAG | 功能描述:音頻 DSP 6Ch Dig Aud PWM Proc 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 |
| TAS5026APAGG4 | 功能描述:音頻 DSP 6Ch Dig Aud PWM Proc 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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