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SM5904CF Datasheet(PDF) 21 Page - Nippon Precision Circuits Inc

No. de pieza SM5904CF
Descripción Electrónicos  compression and non compression type
PDF  35 Pages
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Fabricante Electrónico  NPC [Nippon Precision Circuits Inc]
Página de inicio  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM5904CF Datasheet(HTML) 21 Page - Nippon Precision Circuits Inc

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NIPPON PRECISION CIRCUITS-21
SM5904CF
86H (digital audio interface settings)
- CP1, CP2 (channel status and clock accuracy set-
ting)
When 0 and 0: Level 2 (max ± 300 ppm)
When 0 and 1: Level 3 (max ± 10%)
When 1 and 0: Level 1 (max ± 50 ppm)
When 1 and 1: Not supported
- LBIT (digital audio signal generation logic)
When 1: Not assigned
When 0: Post-recording software
- DIT (digital audio interface enable)
When 1: DIT output enable
When 0: DIT LOW-level output
87H (subcode Q data setting)
- QAD3 to QAD0 (Q data setting and word address
specification)
QAD3 (MSB) to QAD0 (LSB) specify one of 10
valid addresses in the range 0000 to 1001.
If an address in the range 1010 to 1111 is speci-
fied, the data on QD7 to QD0 is ignored.
Note that writing to address 1001 also functions
as the write stop command.
- QD7 to QD0 (Q data setting and word data)
The CD Q-channel has the general data format
shown below.
The write data required to fully specify the Q data
is the 80 bits comprising CONTROL, ADR, and
DATA-Q.
The CRC write data is not required because it is
generated by recalculation.
Control
0123456789
78 79 80
95
S0, S1
ADR
DATA-Q
CRC
S0, S1
96 bit
80 bit
bit
QAD3
QAD2
QAD1
QAD0
QD7
QD6
QD5
QD4
QD3
QD2
QD1
QD0
0
0
0
0
CTL0
CTL1
CTL2
CTL3
ADR3
ADR2
ADR1
ADR0
0
0
0
1
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
0
0
1
0
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ16
0
0
1
1
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
0
1
0
0
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQ32
0
1
0
1
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
DQ40
0
1
1
0
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
DQ48
0
1
1
1
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
DQ56
1
0
0
0
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
DQ64
1
0
0
1
DQ65
DQ66
DQ67
DQ68
DQ69
DQ70
DQ71
DQ72
Adderss map for Q data setting beuffer
- Subcode Q data setting process
Initially, data is written to word address range
0000 to 1000, and then data is written to address
1001. Next, only data that needs to be changed
is written if the 91H command QRDY bit is 1, and
then address 1001 is written again. Note that
when shockproof mode is ON, the Q data is
specified according to the data output from the
SM5904CF.



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