LC7074M 데이터 시트보기 (PDF) - SANYO -> Panasonic
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LC7074M Datasheet PDF : 17 Pages
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LC7074, 7074M
Package and Output Driver Type Comparison
Product No.
Package
Output driver type difference*
LC7070N
LC7070NM
DIP18
MFP18
Open drain type
LC7071NM
MFP18
Pull-up MOS transistor (CMOS type)
LC7073
LC7073M
DIP18
MFP18
Pull-up MOS transistor (CMOS type)
LC7074
LC7074M
DIP18
MFP18
Pull-up MOS transistor (CMOS type)
Note: *Only applies to the three pins DATA START, DATA OUT and CLOCK OUT.
Function
Identical functions
See table, Comparison of
Functional Differences.
See table, Comparison of
Functional Differences.
Comparison of Functional Differences
Item
Offset word E
Offset word F
All zero data
(corresponding to offset E)
MMBS/RDS compound data
Synchronization detection method
Post-synchronization detection data
output
Pull-out determination method
Error correction
LC7070N
LC7070NM
LC7071NM
These are taken to be offset words
and a group synchronization
detection operation is performed.
All zero data is taken to be an offset
word E block. Accordingly, an offset
word E block synchronization
operation is performed.
For the transition from an RDS
group (ABCD) to an MMBS group
(EEEE) or the reverse transition,
these are taken to be the pull-out
and resynchronization sequences.
During transitions, data errors can
occur and data output can be
interrupted.
Synchronization is achieved when
the offset words in five out of 12
blocks are detected in the correct
order.
Data output starts with the data from
the first block (the offset word A
block) in the group following the
group for which synchronization
detection was completed.
LC7073
LC7073M
LC7074
LC7074M
These are not seen as offset words.
Only offset words A, B, C, C' and D
are detected.
All zero data is not seen as being an
offset word E block.
Rather, all zero data is taken to
mean that there is no input, and
synchronization detection is not
performed.
If all zero data is input, these
products decide that data input has
stopped, and they stop outputting
data and enter the pull-out
sequence.
Offset words A, B, C, C', D and E
are detected.
Offset word F is not detected.
All zero data is seen as an offset
word E block. Accordingly, an offset
word E block synchronization
operation is performed.
Since these products do not
synchronize on an offset word E
block, each time an RDS group is
inserted in an MMBS group, they
repeat the pull-out and
resynchronization sequences.
MMBS/RDS data is correctly output
with no pull-out and no errors.
Synchronization is achieved when the offset words in two out of three
blocks are detected in the correct order.
When synchronization detection completes with an offset word A block,
output starts with the data in the second block (the offset word B block)
from the same group.
When synchronization detection completes with an offset word B, C or D
block, output starts with the data in the first block (the offset word A block)
from the same group.
When the offset words from five or more consecutive blocks were not detected.
In modes where error correction is enabled, up to five error bits are corrected for distances of 5 bits or less.
No.4789–3/17
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