wm8802scft/v Wolfgang Knap, wm8802scft/v Datasheet - Page 30

• Manufacturer Part Number: wm8802scft/v
• Description: Digital Audio Interface Transceiver
• Manufacturer: Wolfgang Knap

WM8802
CHANNEL STATUS OUTPUT
w
Figure 21 Internal Lock Signal
DATA CATEGORY SPECIFICATION BIT 1 OUTPUT ( AUDIO )
The AUDIO pin outputs bit 1 of the channel status indicating that the input bi-phase data is PCM
audio data. AUDIO status is immediately output upon detection of RERR even during High output.
An output ORed with IEC61937 or the DTS-CD/LD detection flag is also possible with AOSEL.
Table 12 AUDIO Output
EMPHASIS INFORMATION OUTPUT (EMPHA)
The EMPHA pin output indicates that the signal has the presence or absence of 50/15 s emphasis
for consumer and broadcast studio.
EMPHA status is immediately output upon detection of RERR even during High output.
Table 13 EMPHA Output
Internal clock signal
EMPHA
AUDIO
0
1
0
1
RLRCK
RDATA
RERR
Output starts from the RLRCK edge immediately after RERR flag is lowered
PCM audio data (CS bit 1 = Low)
Non-audio data (CS bit 1 = High
OUTPUT CONDITIONS
OUTPUT CONDITIONS
50/15 s pre-emphasis
No pre-emphasis
OK
45 ms to 300 ms
Data
PP Rev 1.1 April 2004
Product Preview
30