SM5816AF_06 Datasheet, PDF (23/27 Pages) Nippon Precision Circuits Inc – 6-channel DSD-PCM Converter

SM5816AF
Pin-control/Flag-control Relation Table
System setting Description
Function
“H”
“L”
Control method select
Serial I/F control
Pin control
Initialization control
Normal operation
Initialize and resync
DSD data input clock (DSBCKF) I/O
select
Output (Master)
Input (Slave)
DSD data output clock (DSBCKB)
I/O select
Input (Slave)
Output (Master)
8fs data output clock (F8BCK,
F8WCK) I/O select
Input (Slave)
Output (Master)
2fs data output clock (F2BCK,
F2LRCK) I/O select
Input (Slave)¹
Output (Master)
8fs PCM data format select
MSB-first right-justified 24-bit MSB-first left-justified 32-bit
8fs PCM word clock format select
“L” → “H” (falling edge word “H” → “L” (rising edge word
boundary)
boundary)
2fs PCM data format select
IIS 32bit
MSB-first left-justified 32-bit
PCM output data select
8fs PCM output
2fs PCM output
2fs PCM external data output select External data select
2fs PCM output
Subwoofer output select
Surround Back output
Subwoofer output
Surround Back Rch output select Both Rch, Lch select
Lch output only
Fixed/RAM coefficient select
RAM coefficient
Fixed coefficient
8fs FIR fixed coefficient 1-4 select
SELFIR (2, 1) (L, L) (L, H) (H, L) (H, H)
FIR coeff coeff 1 coeff 2 coeff 3 coeff 4
Pin control
Serial I/F control
Pin name No. Flag name Bit Default
SELMCU 8
–
––
INIT 79
–
––
DIRDSCK1 69
–
––
DIRDSCK2 70
–
––
DIR8CK 22
–
––
DIR2CK 39
–
––
FMT8FS 23
–
––
FMT8WCK 24
–
––
FMT2FS 42
–
––
SEL8FS 76 SEL8FS 2 “L”
SELEXT 77 SELEXT 3 “L”
SELSBSW 6 SELSBSW 6 “L”
SELSBR 7 SELSBR 7 “L”
SELRAM 71 SELRAM 8 “L”
SELFIR1 72 SELFIR1 9 “L”
SELFIR2 73 SELFIR2 10 “L”
Dither rounding setting
SELDH (2, 1) (L, L) (L, H) (H, L) (H, H)
Dither
OFF 1LSB 2LSB 4LSB
SELDH1 38 SELDH1 11 “L”
SELDH2 37 SELDH2 12 “L”
DSD signal gain setting
50% modulation = 0dB
100% modulation = 0dB
DSGAIN 5 DSGAIN 13 “L”
PCM signal mute
Mute-OFF
Mute-ON
XMTPCM 74 MTPCM 14 “L”
DSD signal mute
Mute-OFF
Mute-ON
XMTDSD 75 MTDSD 15 “L”
Forced sync
Resync when "L" → "H"
SYNC 78 SYNC 16 “L”
1. In 2fs PCM mode, when external inputs are selected for output(SELEXT="H"), the DIR2CK setting is inactive, and F2BCK, F2LRCK are output.
SEIKO NPC CORPORATION —23