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SM5819AF Fiches technique(PDF) 1 Page - Nippon Precision Circuits Inc

No de pièce SM5819AF
Description  6-channel DSD-PCM Converter
Download  18 Pages
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Fabricant  NPC [Nippon Precision Circuits Inc]
Site Internet  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM5819AF Fiches technique(HTML) 1 Page - Nippon Precision Circuits Inc

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SM5819AF
SEIKO NPC CORPORATION —1
6-channel DSD-PCM Converter
OVERVIEW
The SM5819AF is a 6-channel DSD data (64fs) to 4fs, 2fs or fs PCM data converter. During conversion, deci-
mation filtering is performed using a filter with selectable fixed coefficients (3 sets). Also, DSD inputs and
PCM outputs are available for use in master/slave clock mode operation, in a wide range of system configura-
tions, making it easy to construct a multi-channel DSD/PCM reproduction system.
FEATURES
I
512fs (22.5792MHz, fs = 44.1kHz), 1:2 to 2:1
duty master clock
I
DSD input and PCM output clock master/slave
switching
I
3-system external data input (3-wire format),
PCM output data/BCK/LRCK external input and
internal filter output switching
(BCK and LRCK are common to all 3 external
PCM data inputs)
I
Decimation filter coefficients
• Fixed coefficients: 4fs-1/2fs-1/fs-1
I
PCM output mute operation
I
PCM output format: [MSB-first left-justified 32-
bit] or [IIS 32-bit]
(IIS 32-bit output bit clock frequency = 64
× word
clock frequency)
I
FIR filter coefficients
• 64fs
→ 4fs/2fs/fs: 480th-order (6-channel)
• ROM coefficients: 24 valid data bits (4-bit MSB
extension at 4fs, 5-bit MSB extension at 2fs/fs)
I
+ 6dB DSD gain switching function
I
External/Internal system clock output switching
I
3.3V (3.0 to 3.6V) and 2.5V (2.3 to 2.7V) power
supplies
I
− 40 to 85°C operating temperature range
I
48-pin QFP package
APPLICATIONS
I
Multi-channel SA-CD players
I
SA-CD-compatible AV amplifiers
ORDERING INFORMATION
PINOUT
(Top view)
PACKAGE DIMENSIONS
(Unit: mm)
Device
Package
SM5819AF
48 -pin QFP
13
14
15
16
17
18
19
20
21
22
23
24
37
38
39
40
41
42
43
44
45
46
47
48
VDDL
DIRPCK
FMTPCM
VSS
MCKOUT
VDDH
PBCK
PLRCK
POSLR
POCSW
POFLR
VSS
VDDL
DSBCK
DSIFL
DSIFR
DSICT
DSISW
DSISL
DSISR
DIRDSCK
SYNC
INIT
VSS
9 ± 0.4
7 ± 0.1
0.125 − 0.025
+ 0.075
0.5
0 ~ 10
0.18
− 0.05
+ 0.09
0.08


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