SM5816AF
6-channel DSD-PCM Converter
OVERVIEW
The SM5816AF is a 6-channel DSD data to 6-channel 8fs or 2fs PCM data converter IC. During conversion,
decimation filtering is performed using a filter with selectable fixed coefficients (4 sets) or optional filter coef-
ficients that are written to the built-in RAM. Also, DSD input/outputs and PCM outputs are available for use in
master/slave clock mode operation, in a wide range of system configurations, making it easy to construct a
multi-channel DSD/PCM reproduction system.
FEATURES
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PINOUT
(Top view)
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59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
VSS6
EXIMCK
EXID1
EXID2
EXILRCK
EXIBCK
TEST3
TEST2
MCK
VDD5
VSS5
CKOUT
TEST1
F2FLREX1
F2CSWEX2
F2SLR
F2LRCK
F2BCK
FMT2FS
VDD4
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512fs master clock (22.5792MHz, fs = 44.1kHz)
DSD inputs connected directly to outputs in
through mode
Clock master/slave switching for DSD input/out-
puts and PCM outputs
2-system external data inputs (3-wire), with 2fs
output data BCK and LRCK pins switchable
between external inputs and internal filter outputs
Decimation filter characteristics
• Fixed coefficients: 4 sets (8fs), 1 set (2fs)
• Rewritable coefficients: 1 set (29 bit
×
240
word)
Dither rounding function in 8fs/24-bit output
mode, with switchable ON/OFF and summing
position
PCM/DSD output independent muting operation
8fs output format: [MSB-first left-justified 32-bit]
or [MSB-first right-justified 24-bit]
2fs output format: [MSB-first left-justified 32-bit]
or [IIS 32-bit]
+6dB DSD gain switching function
System clock output switchable between external
system clock and internal system clock
3.3V ± 10% supply voltage
5V tolerant inputs for direct connection to 5V
logic outputs
−
20 to 70
°
C operating temperature range
80-pin QFP package
VDD6
DSBCKF
DSIFL
DSIFR
DSICT
DSISW
DSISL
DSISR
DIRDSCK1
DIRDSCK2
SELRAM
SELFIR1
SELFIR2
XMTPCM
XMTDSD
SEL8FS
SELEXT
SYNC
INIT
VSS7
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VSS4
DIR2CK
SELDH1
SELDH2
F8FL
F8FR
F8CT
F8SW
F8SBL
VDD3
VSS3
F8SBR
F8SL
F8SR
F8WCK
F8BCK
FMT8WCK
FMT8FS
DIR8CK
VDD2
PACKAGE DIMENSIONS
(Unit: mm)
14 ± 0.4
12 ± 0.1
APPLICATIONS
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Multi-channel SA-CD players
SA-CD-compatible AV amplifiers
0.5
1.7max
0.1
0.18 0.05
1.4 ± 0.1
ORDERING INFORMATION
Device
SM5816AF
Package
80-pin QFP
14 ± 0.4
12 ± 0.1
VDD1
MSHIFT
MLATCH
MDATA
DSGAIN
SELSBSW
SELSBR
SELMCU
MONTOR
VSS1
DSBCKB
DSOSR
DSOSL
DSOSBR
DSOSBL
DSOSW
DSOCT
DSOFR
DSOFL
VSS2
0.05
0.125 0.025
0 to 10
0.1
0.5 ± 0.2
SEIKO NPC CORPORATION —1
NPC [ NIPPON PRECISION CIRCUITS INC ]
