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SM5849BF bảng dữ liệu(PDF) 2 Page - Nippon Precision Circuits Inc

tên linh kiện SM5849BF
Giải thích chi tiết về linh kiện  Asynchronous Sample Rate Converter
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nhà sản xuất  NPC [Nippon Precision Circuits Inc]
Trang chủ  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM5849BF bảng dữ liệu(HTML) 2 Page - Nippon Precision Circuits Inc

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SM5849BF
SEIKO NPC CORPORATION —2
FEATURES
Filter Characteristics and Converter Efficiency
I
24-bit internal data word length
I
Deemphasis filter characteristics (IIR filter)
• ±0.03dB gain deviation from ideal filter charac-
teristics
I
Anti-aliasing LPF characteristics
• Output/input sample rate conversion ratio auto-
matic filter select (6 FIR filters)
- Up converter LPF
1.0 to 2.2 times
- Down converter LPF I
0.92 times: 48.0 to 44.1kHz
- Down converter LPF II
0.73 times: 44.1 to 32.0kHz
- Down converter LPF III
0.67 times: 48.0 to 32.0kHz
- Down converter LPF IV
0.5 times: 48.0 to 24.0kHz
- Down converter LPF V
0.45 times: 48.0 to 22.1kHz
• ±0.00005dB passband ripple
• > 110dB stopband attenuation
I
Converter noise levels
≤ −110dB internal calculation (quantization)
noise
−98dB (16-bit output), −122dB (20-bit output),
and
−146dB (24-bit output) word rounding
noise
I
Output S/N ratio (theoretical values)
Interfaces
I
Input data format
• 2s-complement, L/R alternating, serial
• IIS/non-IIS format
I
Output data format
• 2s-complement, MSB first, L/R alternating,
serial
• Continuous bit clock
APPLICATIONS
I
Digital audio equipment-interface sample rate
conversion (AV amplifiers, CD-R, DAT, MD and
8mm VTRs)
I
Commercial recording/editing equipment sample
rate conversion
Output signal
word length
S/N ratio
16-bit input
word length
20-bit input
word length
24-bit input
word length
16 bits
94.8dB
97.7dB
97.7dB
20 bits
97.7dB
109.5dB
109.7dB
24 bits
97.7dB
109.7dB
110dB
Mode
Word length
Data position
Data sequence
1
16 bits
Right justified
MSB first
2
Right justified
LSB first
3
Left justified
MSB first
4
IIS
MSB first
5
20 bits
Right justified
MSB first
6
Right justified
LSB first
7
Left justified
MSB first
8
IIS
MSB first
9
24 bits
Right justified
MSB first
10
Right justified
LSB first
11
Left justified
MSB first
12
IIS
MSB first
Mode
Word length
IIS selection
Data position
1
16 bits
Normal
(non IIS)
Right justified
2
20 bits
3
24 bits
4
24 bits
Left justified
5
16 bits
IIS
6
20 bits
7
24 bits


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