SM5816AF
6-channel DSD-PCM Converter
Preliminary Product Bulletin
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 mode operation, in a wide range of system configurations, making it easy to construct a multi-
channel DSD/PCM reproduction system.
FEATURES
I
I
PINOUT
Top view
VSS6
EXMCK
EXID1
EXID2
EXILRCK
EXIBCK
TEST3
TEST2
MCK
VDD5
VSS5
CKOUT
TEST1
F2FLREX1
F2CSWEX2
F2SLR
F2LRCK
F2BCK
FMT2FS
VDD4
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
I
I
I
I
I
I
I
I
I
I
I
I
I
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)
• Writable coefficients: 1 set
Dither rounding function in 8fs/24-bit output
mode only, with switchable ON/OFF and sum-
ming position
Mute 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 inputs
−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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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)
APPLICATIONS
I
14 0.4
12 0.1
I
Multi-channel SACD players
SACD-compatible AV amplifiers
VDD1
MSHIFT
MLATCH
MDATA
DSGAIN
SELSBSW
SELSBR
SELMCU
MONTOR
VSS1
DSBCKB
DSOSR
DSOSL
DSOSBR
DSOSBL
DSOSW
DSOCT
DSOFR
DSOFL
VSS2
14 0.4
12 0.1
0.5
1.7max
0.1
0.18 0.05
1.4 0.1
0.05
0.125 0.025
0 to 10
0.1
0.5 0.2
NIPPON PRECISION CIRCUITS INC.—1
SM5816AF
PIN DESCRIPTION
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Name
VDD1
MSHIFT
MLATCH
MDATA
DSGAIN
SELSBSW
SELSBR
SELMCU
MONTOR
VSS1
DSBCKB
DSOSR
DSOSL
DSOSBR
DSOSBL
DSOSW
DSOCT
DSOFR
DSOFL
VSS2
VDD2
DIR8CK
FMT8FS
FMT8WCK
F8BCK
F8WCK
F8SR
F8SL
F8SBR
VSS3
VDD3
F8SBL
F8SW
F8CT
F8FR
F8FL
SELDH2
SELDH1
I/O
–
I
I
I
I
I
I
I
O
–
I/O
O
O
O
O
O
O
O
O
–
–
I
I
I
I/O
I/O
O
O
O
–
–
O
O
O
O
O
I
I
Supply pin 1
Serial control shift clock
Serial control latch clock
Serial control command data
DSD signal gain set
DSD-SW input to DSD 8fs-SW/(SBL,
SBR) output select
DSD 8fs-(SBL, SBR) output select
Control method select
Parameter change monitor output
Ground pin 1
DSD through-mode data output: bit clock
DSD through-mode data output:
surround right-channel
DSD through-mode data output:
surround left-channel
DSD through-mode data output:
surround back right-channel
DSD through-mode data output:
surround back left-channel
DSD through-mode data output:
subwoofer-channel
DSD through-mode data output: center-
channel
DSD through-mode data output: front
right-channel
DSD through-mode data output: front
left-channel
Ground pin 2
Supply pin 2
8fs output F8BCK, F8WCK I/O select
8fs PCM format (MSB first)
8fs PCM WCK format
8fs PCM BCK (bit clock)
8fs PCM WCK (word clock)
8fs PCM data output: surround right-
channel
8fs PCM data output: surround left-
channel
8fs PCM data output: surround back
right-channel
Ground pin 3
Supply pin 3
8fs PCM data output: surround back left-
channel
8fs PCM data output: subwoofer-channel
8fs PCM data output: center-channel
8fs PCM data output: front right-channel
8fs PCM data output: front left-channel
Output dither rounding ON/OFF and
summing position select
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
F2FLREX1
TEST1
CKOUT
VSS5
VDD5
MCK
TEST2
TEST3
EXIBCK
EXILRCK
EXID2
EXID1
EXMCK
VSS6
VDD6
DSBCKF
DSIFL
DSIFR
DSICT
DSISW
DSISL
DSISR
DIRDSCK1
DIRDSCK2
SELRAM
SELFIR1
SELFIR2
XMTPCM
XMTDSD
SEL8FS
SELEXT
SYNC
INIT
VSS7
O
I
O
–
–
I
I
I
I
I
I
I
I
–
–
I/O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
–
Description
No.
39
40
41
42
43
44
45
46
Name
DIR2CK
VSS4
VDD4
FMT2FS
F2BCK
F2LRCK
F2SLR
F2CSWEX2
I/O
I
–
–
I
I/O
I/O
O
O
Description
2fs output F2BCK, F2LRCK I/O select
Ground pin 4
Supply pin 4
2fs PCM format
2fs or external data BCK
2fs or external data LRCK
2fs PCM data output: surround left/right-
channel
2fs PCM data output: center/subwoofer-
channel or external data 2 output
2fs PCM data output: front left/right-
channel or external data 1 output
Test pin 1
System clock output
Ground pin 5
Supply pin 5
Master clock input: 512fs
Test pin 2
Test pin 3
External PCM data BCK input
External PCM data LRCK input
External PCM data input 2
External PCM data input 1
External system clock input
Ground pin 6
Supply pin 6
DSD data input bit clock
DSD data input: front left-channel
DSD data input: front right-channel
DSD data input: center-channel
DSD data input: subwoofer-channel
DSD data input: surround left-channel
DSD data input: surround right-channel
DSBCKF I/O select
DSBCKB I/O select
FIR coefficient ROM/RAM select
FIR coefficient (ROM) select
PCM output mute control input
DSD output mute control input
PCM output rate select
2fs output/external data output select
Forced sync pint
Initialization control pin
Ground pin 7
NIPPON PRECISION CIRCUITS INC.—2
SM5816AF
BLOCK DIAGRAM
6ch DSD
6ch DSD IN
PCM
8fs PCM
MUTE
2fs PCM
MUTE
DSD
MUTE
8fs OUT
I/F
2fs OUT
I/F
DSD OUT
I/F
6ch+α 8fs OUT
DECIMATION FIR FILTER
&
DOWN-SAMPLING
6ch 2fs OUT
CPU I/F
MCK
CLOCK GENERATOR
6ch+α DSD OUT
TYPICAL APPLICATION CIRCUITS
Surround Processor
2fs-32bit/IIS
Multi-channel
SACD Decoder
CXD2752R
DSD-PCM
converter
SM5816
DSP
(Surround
Processing etc.)
Analog
LPF
DAC
DSD-to-PCM Conversion Reproduction
8fs-24bit/32bit
Multi-channel
SACD Decoder
CXD2752R
DSD-PCM
converter
SM5816
8fs
Processing
(Volume etc.)
Analog
LPF
DAC
NPC DSD-Related Products
I
SM5866AS: DSD/PCM-compatible multi-level D/A converter
NIPPON PRECISION CIRCUITS INC.—3
SM5816AF
Preliminary Product Bulletin
NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to
improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for
the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits
are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision
Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification.
The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or
malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter,
including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or
indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies.
NIPPON PRECISION CIRCUITS INC.
4-3, Fukuzumi 2-chome, Koto-ku,
Tokyo 135-8430, Japan
Telephone: +81-3-3642-6661
Facsimile: +81-3-3642-6698
http://www.npc.co.jp/
Email: sales
@
npc.co.jp
NP0108AE 2001.08
NIPPON PRECISION CIRCUITS INC.—4
嵌入式系统
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