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SM5846AP Datasheet(PDF) 18 Page - Nippon Precision Circuits Inc

Part # SM5846AP
Description  Multi-function Digital Filter
PDF  36 Pages
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Manufacturer  NPC [Nippon Precision Circuits Inc]
Direct Link  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM5846AP Datasheet(HTML) 18 Page - Nippon Precision Circuits Inc

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SM5846AP
NIPPON PRECISION CIRCUITS—18
Control flag functions when MSD is HIGH
(default)
Other requests are controlled by internal flag only
because there is no corresponding input pin. These
control flags are valid when MDS is HIGH. The
default values are shown in the following table.
Clock Functions
Input clock frequency switching (CKS)
This switch is used to select the input clock fre-
quency—384fs or 512fs (normal-speed sampling),
and 192fs or 256fs (high-speed sampling).
Crystal oscillator control switch (CKEN)
This switch is used to start/stop the crystal oscillator
circuit.
Flag name
Default value
Default setting
FSEL2
HIGH
44.1 kHz deemphasis filter
sampling frequency
FSEL1
HIGH
MUTE
HIGH
Muting OFF
IBS2
LOW
16-bit input data length
IBS1
HIGH
CKS
Input sampling frequency fs (kHz)
System clock
Notes
Frequency (MHz)
(
× fs)
LOW
32
16.384
512fs
Normal-speed sampling mode
64
16.384
256fs
High-speed sampling mode
HIGH
32
12.288
384fs
Normal-speed sampling mode
44.1
16.9344
48
18.432
64
12.288
192fs
High-speed sampling mode
88.2
16.9344
96
18.432
CKEN
Crystal oscillator operation
HIGH
Oscillating
LOW
Stopped



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