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參數(shù)資料
| 型號： | DS4201 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | USB Audio DAC(USB音頻數(shù)模轉(zhuǎn)換器) |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP28 |
| 封裝： | 0.600 INCH, DIP-28 |
| 文件頁數(shù)： | 18/22頁 |
| 文件大?。?/td> | 178K |
| 代理商： | DS4201 |
DS4201
060898 18/22
APPENDIX B: PCM DATA FORMATS
The DS4201 supports four linear PCM data formats:
16–bit signed stereo, 16–bit signed mono, 8–bit
unsigned stereo, and 8–bit unsigned mono. Data for-
mats for these four PCM types are shown in Figure 8 –
11. Coding for PCM 8 and 16 bit formats are shown in
Figure 12. As shown in Figure 12, the 16–bit signed for-
mat, also know as 2’s complement, uses the value
–32768 (0x8000) to represent maximum negative
amplitude and 32767 (0x7FFF) to represent maximum
positive. The 8–bit unsigned format uses the value 0
(0x00) to represent maximum negative and 255 (0xFF)
for maximum positive.
SIGNED 16–BIT STEREO DATA FORMAT
Figure 8
←
Time
. . .
SAMPLE 3
SAMPLE 2
SAMPLE 1
. . .
RIGHT DATA
LEFT DATA
RIGHT DATA
LEFT DATA
RIGHT DATA
LEFT DATA
. . .
31
16
15
0
31
16
15
0
31
16
15
0
(BIT POSN)
SIGNED 16–BIT MONO DATA FORMAT
Figure 9
←
Time
. . .
SAMPLE 3
SAMPLE 2
SAMPLE 1
. . .
MONO DATA
MONO DATA
MONO DATA
. . .
15
0
15
0
15
0
(BIT POSN)
UNSIGNED 8–BIT STEREO DATA FORMAT
Figure 10
←
Time
. . .
SAMPLE 3
SAMPLE 2
SAMPLE 1
. . .
RIGHT DATA
LEFT DATA
RIGHT DATA
LEFT DATA
RIGHT DATA
LEFT DATA
. . .
15
8
7
0
15
8
7
0
15
8
7
0
(BIT POSN)
UNSIGNED 8–BIT MONO DATA FORMAT
Figure 11
←
Time
. . .
SAMPLE 3
SAMPLE 2
SAMPLE 1
. . .
MONO DATA
MONO DATA
MONO DATA
. . .
7
0
7
0
7
0
(BIT POSN)
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相關(guān)代理商/技術(shù)參數(shù) |
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| DS4201F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio Digital-to-Analog Converter |
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| DS42063 | 制造商:Spansion 功能描述:4M (512KX8) 5V, UNIFORM SECTOR, PLCC32, COM - Rail/Tube |
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| DS420BK | 制造商:Hubbell Wiring Device-Kellems 功能描述:SWITCH, DECO SER, 4W, 20A 120/277V, BK |
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