AK4137EQ Datasheet, PDF (58/65 Pages) Asahi Kasei Microsystems – 32bit SRC with PCM/DSD conversion

[AK4137]
Addr Register Name D7
D6
D5
D4
03H DSDICONT PCMFSO1 PCMFSO0 DSDIFS1 DSDIFS0
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
1
D3
DOP
R/W
0
D2
D1
D0
PMI IDCKB DSDIE
R/W R/W R/W
0
0
0
PCMFSO1, PCMFSO0: PCM Output Sampling Frequency Select
00: 44.1KHz or 48KHz (Cut Off 20KHz) (default)
01: 88.2KHz or 96KHz (Cut Off 40KHz)
10: 176.4KHz or 192KHz (Cut Off 80KHz)
11: 384KHz or more (Cut Off 100KHz)
DSDIFS1, DSDIFS0: DSD Input FS Select
00: 64fs
01: 128fs (default)
10: 256fs
11: Reserved (128fs)
DOP: DSD Over PCM (DoP) Mode Enable
0: OFF (default)
1: ON
DSDIE bit must be “0” when DOP bit = “1”. If DSDIE bit is set to “1”, DSD input mode becomes
enabled.
PMI: DSD Input Phase Modulation Mode Select
0: Not Phase Modulation Mode (default)
1: Phase Modulation Mode
IDCKB: Polarity of IDCLK (DSD Input)
0: DSD data is input from IDCLK falling edge (default)
1: DSD data is input from IDCLK rising edge
DSDIE: DSD Input Enable
0: DSD Input Mode OFF (default)
1: DSD Input Mode ON
Rev. 0.2
- 58 -
2014/06