lc89058w Sanyo Semiconductor Corporation, lc89058w Datasheet - Page 35

• Manufacturer Part Number: lc89058w
• Description: Cmos Digital Audio Interface Receiver
• Manufacturer: Sanyo Semiconductor Corporation

10.4.6 Processing during error recovery
• When preambles B, M, and W are detected, PLL becomes locked and data demodulation begins.
• Demodulation data is output from the RLRCK edge after RERR turns to "L".
10.5 Data Delimiter Bit 1 Output (
•
• Outputs bit 1 of the channel status that indicates whether the input bi-phase data is PCM audio data.
• OR-output with IEC61937 or with the DTS-CD/LD detection flag is also possible with AOSEL.
10.6 Emphasis Information Output (EMPHA)
• MOUT can output whether there is 50/15μs emphasis parameter for consumer by switching the contents of MOUT
• MOUT is immediately output upon detection of RERR even during "H" output.
10.7 IEC61937, DTS-CD/LD Detection Flag Output
• A function to output IEC61937 and DTS-CD/LD detection flag for non-PCM data is provided.
• DTS-CD/LD is compatible with "14-bit format."
• When bit 1 of channel status is non-PCM data, the IEC61937 sync signal is detected and detection flag is output. If bit
• The DTS-CD/LD sync signal detection is done based on the sync pattern and the base frequency. The sync pattern is
• The IEC61937 and DTS-CD/LD detection flags can be readout with the microcontroller interface in addition to output
• The detection flags are cleared when fs is changed or when a PLL lock error or data error occurs.
AUDIO outputs the channel status data delimiter bit 1 information.
AUDIO is immediately output upon detection of RERR even during "H" output period.
output by MOSEL.
1 is PCM data, detection flag is not output.
checked every 4096th frame, and the detection status is held until the sync pattern is no longer verified.
to the
contents setting, an interrupt signal is output from INT detecting an IEC61937 or DTS-CD/LD sync signal. Reading
output register from this information can see details of Non-PCM signal. This information is used to read out the
output register and identify the details of the non-PCM signal
____________
____________
AUDIO pin by AOSEL. When the UNPCM non-PCM signal output setting is selected through the INT output
____________
Lock Signal
RLRCK
RDATA
RERR
Figure 10.13 Data Processing When Data Demodulation Starts
______
AUDIO
MOUT
H
L
H
L
________
AUDIO )
Output start from RWCK edge immediately after RERR is lowered
Table 10.7
Table 10.8 MOUT Output
LC89058W-E
OK
AUDIO Output
____________
3ms to 144ms
PCM audio data (CS bit 1 = "L")
Non-audio data (CS bit 1 = "H")
50/15μs pre-emphasis
Output Conditions
Output Conditions
No pre-emphasis
Data
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