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參數(shù)資料
| 型號： | SM5844AF |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | Asynchronous Sample Rate Converter |
| 中文描述： | 異步采樣率轉換器 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大?。?/td> | 280K |
| 代理商： | SM5844AF |
SM5844AF
NIPPON PRECISION CIRCUITS—1
NIPPON PRECISION CIRCUITS LTD.
Asynchronous Sample Rate Converter
OVERVIEW
The SM5844AF is a digital audio signal,
asynchronous sample rate converter LSI. It reads 16
or 20-bit word length input data, and writes 16, 18,
or 20-bit word length output data. It also features a
built-in digital deemphasis filter and digital
attenuator.
The SM5844AF operates from a 5 V supply, and is
available in 44-pin QFPs.
FEATURES
Functions
I
Left/right-channel processing (stereo)
Input sample rate (fsi) ranges
24 to 48 kHz (256fsi mode)
27 to 55 kHz (384fsi mode)
Output sample rate (fso) range
20 to 100 kHz
Sample rate conversion ratio (fso/fsi)
0.5 to 2.0 times
Asynchronous input and output timing (clock
inputs)
System clock inputs (input and output clocks
independent)
256fsi or 384fsi input system clock
256fso or 384fso output system clock
Deemphasis filter
IIR-type filter
44.1, 48 or 32 kHz
Digital attenuator
11-bit data for 1025 levels
Smooth, incremental attenuation change
+12 dB gain shift function
Direct mute function
Through mode operation
Input to output direct
Output data clocks (LRCO, BCKO)
External input (slave mode)
Output system clock generated internally
(master mode)
CMOS-level input/outputs
5 V (standard) single supply
44-pin QFP
Molybdenum-gate CMOS process
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I
I
I
I
I
I
I
I
I
I
I
I
I
APPLICATIONS
I
Digital audio equipment, sample rate conversion
(audiovisual amplifiers, CD-R, DAT, MD and 8
mm VTRs)
Commercial recording/editing equipment, sample
rate conversion
Input data jitter elimination
I
I
PINOUT
PACKAGE DIMENSIONS
Unit: mm
44-pin QFP
DI
BCKI
LRCI
ICLK
ICKSL
IFM1
IFM2
V
D
M
M
M
M
O
OW20N
IISN
STATE
TST1N
TST2N
RSTN
VSS
S
T
O
O
L
B
D
S
0
+-
10.00
1
1
+-
1
0
1
0.80
12.80+
0.35+
0.60+
0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SM5846AP | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Multi-function Digital Filter |
| SM5846AP_06 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Multi-function Digital Filter |
| SM5847 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:High-fidelity Digital Audio, Multi-function Digital Filter |
| SM5847AF | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:High-fidelity Digital Audio, Multi-function Digital Filter |
| SM5849 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Asynchronous Sample Rate Converter |
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