CXD3017Q View Datasheet(PDF) - Sony Semiconductor
Part Name
Description
View to exact match
CXD3017Q Datasheet PDF : 117 Pages
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Peak meter
CXD3017Q
XLAT
SQCK
SQSO
(Peak meter)
L0 L1 L2 L3 L4 L5 L6 L7 R0 R1 R2 R3 R4 R5 R6 R7
Setting the SOCT command of $8X to 0 and the SL1 and SL0 commands of $BX to 0 and 1, respectively,
results in peak detection mode. The SQSO output is connected to the peak register. The maximum PCM data
values (absolute value, upper 8bits) for the left and right channels can be read from SQSO by inputting 16
clocks to SQCK. Peak detection is not performed during SQCK input, and the peak register does not change
during readout. This SQCK input judgment uses a retriggerable monostable multivibrator with a time constant
of 270µs to 400µs. The time during which SQCK input is high should be 270µs or less. Also, peak detection is
restarted 270µs to 400µs after SQCK input.
The peak register is reset with each readout (16 clocks input to SQCK).
The maximum value in peak detection mode is detected and held in this status until the next readout. When
switching to peak detection mode, readout should be performed one time initially to reset the peak register.
Peak detection can also be performed for previous value hold and average value interpolation data.
Traverse monitor count value setting
These bits are set when monitoring the traverse condition of the SENS output according to the COUT
frequency division.
Command bit
TRM1 TRM0
0
0
0
1
1
0
1
1
Processing
1/64 frequency division
1/128 frequency division
1/256 frequency division
1/512 frequency division
Monitor output switching
The monitor output can be switched to the various signals by setting the MTSL1 and MTSL0 commands of $B.
Command bit
Symbol XUGF
Output data
XPCK
GFS
MTSL1
MTSL0
0
0
XUGF
XPCK
GFS
0
1
MNT1
MNT0
MNT3
1
0
RFCK
XPCK
∗ It is necessary for the SRO1 command of $3F to be set to 0.
XROF
C2PO
C2PO
C2PO
GTOP
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