參數(shù)資料
型號(hào): PCM1800E
英文描述: Single-Ended Analog Input 20-Bit Stereo ANALOG-TO-DIGITAL CONVERTER
中文描述: 單端模擬輸入20位立體聲模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù): 11/15頁(yè)
文件大小: 172K
代理商: PCM1800E
11
PCM1800
DATA FORMAT
PCM1800 supports four audio data formats in both Master
and Slave Modes, and are selected by FMT1 (pin 9) and
FMT0 (pin 8), as shown in Table III.
FORMAT #
FMT1
FMT0
DATA FORMAT
0
1
2
3
0
0
1
1
0
1
0
1
20-bit, Left-justified
20-bit, I
2
S
16-bit, Right-justified
20-bit, Right-justified
NOTE: FMT1 and FMT0 must be stable at RSTB changing from LOW to
HIGH.
TABLE III. Data Format.
FIGURE 5. Audio Data Format (Slave Mode: FSYNC, LRCK, and BCK are inputs).
L–ch
R–ch
FORMAT 0: FMT[1:0] = “00”
20-Bit, MSB-First, Left-Justified
MSB
LSB
LRCK
BCK
DOUT
MSB
LSB
1
2
3
18 19 20
1
2
3
18 19 20
1
MSB
L–ch
R–ch
L–ch
R–ch
LSB
LRCK
BCK
FORMAT 2: FMT[1:0] = “10”
FORMAT 3: FMT[1:0] = “11”
20-Bit, MSB-First, Right-Justified
DIN
MSB
LSB
16-Bit, MSB-First, Right-Justified
1
16
20
2
3
14 15 16
1
2
3
14 15 16
MSB
LSB
LRCK
BCK
DOUT
MSB
LSB
1
2
3
18 19 20
1
2
3
18 19 20
FORMAT 1: FMT[1:0] = “01”
20-Bit, MSB-First, I
2
S
L-ch
R-ch
MSB
LSB
LRCK
FSYNC
BCK
DOUT
MSB
LSB
FSYNC
FSYNC
FSYNC
1
2
3
18 19 20
1
2
3
18 19 20
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