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參數(shù)資料
| 型號(hào)： | STA013T |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 通用總線功能 |
| 英文描述： | MPEG 2.5 LAYER III AUDIO DECODER |
| 中文描述： | 2.5第三層的MPEG音頻解碼器 |
| 文件頁數(shù)： | 20/38頁 |
| 文件大?。?/td> | 300K |
| 代理商： | STA013T |
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PLLFRAC_441_H
Address: 0x52
Type: R/W
Software Reset: 0x00
Hardware Reset: 0x00
MSB
b7
PF15 PF14 PF13 PF12 PF11 PF10
LSB
b0
PF8
b6
b5
b4
b3
b2
b1
PF9
The registers are considered logically concate-
nated and contain the fractional values for the
PLL, for 44.1KHz reference frequency.
(see also PLLFRAC_L and PLLFRAC_H regis-
ters)
PCMDIVIDER
Address: 0x54
Type: RW
Software Reset: 0x03
Hardware Reset: 0x03
7
6
5
4
3
2
1
0
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
PCMDIVIDER is used to set the frequency ratio
between the OCLK (Oversampling Clock for
DACs), and the SCKT (Serial Audio Transmitter
Clock).
The relation is the following:
SCKT_freq
=
OCLK_freq
2
(
1
+
PCM_DIV
)
The Oversampling Factor (O_FAC) is related to OCLK and SCKT by the following expression:
1)
OCLK_freq = O_FAC * LRCKT_ Freq
(DAC relation)
2)
OCLK_ Freq = 2 * (1+PCM_DIV) * 32*
LRCKT_Freq (when 16 bit PCM mode is used)
3)
OCLK_ Freq = 2 * (1+PCM_DIV) * 64*
LRCKT_Freq (when 32 bit PCM mode is used)
4)
PCM_DIV = (O_FAC/64) - 1 in 16 bit mode
5)
PCM_DIV = (O_FAC/128) - 1 in 32 bit mode
Example for setting:
MSB
LSB
b7
PD7
0
0
0
0
0
0
b6
PD6
0
0
0
0
0
0
b5
PD5
0
0
0
0
0
0
b4
PD4
0
0
0
0
0
0
b3
PD3
0
0
0
0
0
0
b2
PD2
1
1
0
0
0
0
b1
PD1
1
0
1
1
1
0
b0
PD0
1
1
1
1
0
1
Description
16 bit mode
16 bit mode
16 bit mode
32 bit mode
32 bit mode
32 bit mode
512 x Fs
384 x Fs
256 x Fs
512 x Fs
384 x Fs
256 x Fs
for 16 bit PCM Mode
O_FAC = 512 ; PCM_DIV = 7
O_FAC = 256 ; PCM_DIV = 3
O_FAC = 384 ; PCM_DIV = 5
for 32 bit PCM Mode
O_FAC = 512 ; PCM_DIV = 3
O_FAC = 256 ; PCM_DIV = 1
O_FAC = 384 ; PCM_DIV = 2
STA013 - STA013B - STA013T
20/38
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STA013T | 功能描述:音頻 DSP MPEG Audio Decoder 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 |
| STA013T 013TR | 功能描述:音頻 DSP MPEG Audio Decoder 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 |
| STA014 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM AND SRS WOWO POSTPROCESSING CAPABILITY |
| STA014B | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM AND SRS WOWO POSTPROCESSING CAPABILITY |
| STA014T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM AND SRS WOWO POSTPROCESSING CAPABILITY |
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