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參數(shù)資料
| 型號： | WM8716 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | High Performance 24-bit, 192kHz Stereo DAC |
| 中文描述： | 高性能24位，192kHz的立體聲DAC |
| 文件頁數(shù)： | 8/21頁 |
| 文件大?。?/td> | 351K |
| 代理商： | WM8716 |
WM8716
Production Data
WOLFSON MICROELECTRONICS LTD
PD Rev 3.1 April 2001
8
AUDIO DATA INTERFACE
Data may be input at a rate corresponding to the system clock having a rate of 256fs or 384fs or
512fs or 768fs, in which case an oversampling ratio of 128x is selected. Alternatively a rate of 128fs
or 192fs may be used, in which case the first filter stage is bypassed and an oversampling ratio of
64x results. Finally, in MODE8X, data may be input at 8x the normal rate, in which case separate
input pins are used to input the two stereo channels of data (unless DIFFHW mode and MODE8X
are both selected, in which case only a mono channel is converted differentially). In MODE8X all filter
stages are by-passed, prior to the sigma delta modulator. Data is input MSB first in all modes.
NORMAL SAMPLE RATE
In normal mode, the data is input serially on one pin for both left and right channels.
Data can be
“
right justified
”
meaning that the last 16, 20 or 24 bits (depending on chosen PCM word
length) that were clocked in prior to the transition on LRCIN are valid.
Alternatively data can be
“
left justified
”
(20 and 24-bit PCM data only), where the bits are clocked in
as the first 20 or 24 bits after a transition on LRCIN.
For the three I
2
S modes supported (16-bit, 20-bit and 24-bit PCM data), data is clocked
“
left justified
”
except with one additional preceding clock cycle.
LRCIN (PIN 1)
16-BIT RIGHT
JUSTIFIED
DIN (PIN 2)
20-BIT RIGHT
JUSTIFIED
DIN (PIN 2)
24-BIT RIGHT
JUSTIFIED
DIN (PIN 2)
24-BIT LEFT
JUSTIFIED
DIN (PIN 2)
20-BIT LEFT
JUSTIFIED
DIN (PIN 2)
BCKIN (PIN 3)
B2
B1
B0
B2
B1
B0
B2
B1
B0
B0
B0
B23 B22 B21
B19 B18 B17
B23 B22 B21 B20 B19
B4
B3
B2
B1
B0
B0
B19 B18 B17
B15
B2
B1
B0
B2
B1
B0
B2
B1
B0
B23 B22 B21
B19 B18 B17
B0
B4
B3
B2
B1
B0
B23 B22 B21 B20 B19
B19 B18 B17
B15
B2
B1
B0
B2
B1
B0
B2
B1
B0
RIGHT
LEFT
1/fs
LRCIN (PIN 1)
16-BIT I
2
S
DIN (PIN 2)
24-BIT I
2
S
DIN (PIN 2)
20-BIT I
2
S
DIN (PIN 2)
BCKIN (PIN 3)
B2
B1
B0
B0
B2
B1
B0
B3
B2
B1
RIGHT
LEFT
B15
B23
B19
B6
B5
B4
B2
B1
B0
B3
B2
B1
B15
B23
B19
B6
B5
B4
B0
B2
B1
B0
B23
B19
B15
Figure 4 Audio Data Input Format
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相關代理商/技術參數(shù) |
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|---|---|
| WM8716_06 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:High Performance 24-bit, 192kHz Stereo DAC |
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| WM8716SEDS | 功能描述:音頻數(shù)/模轉換器 IC Stereo DAC (OSC) RoHS:否 制造商:Texas Instruments 轉換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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