SM5843A×1
PIN DESCRIPTION
1
Number
Name
DI/INF2N
BCKI
I/O
Description
1
2
3
Ip
Ip
Ip
Data input when INF1N is LOW, and input format select pin when INF1N is HIGH.
Input bit clock
CKSLN
Oscillator and system clock select input. 384fs when HIGH, and 256fs when LOW.
Input format select pin. INF1N and INF2N select the pin functions below.
Pin function selection
INF1N
DI/INF2N
Input format
DI/INF2N IW1N/DIL IW2N/DIR
LOW
LOW
HIGH
HIGH
LOW
HIGH
LOW
HIGH
4
INF1N
Ip
LR alternating, trailing data
DI
IW1N
DIL
IW2N
DIR
LR alternating, leading data
LR simultaneous, leading data
INF2N
Input bit length select pin when INF1N is LOW, and left-channel data input when INF1N is HIGH.
IW1N and IW2N select the input data length.
INF1N
IW2N/DIL
LOW
LOW
HIGH
HIGH
×
IW1N/DIR
LOW
HIGH
LOW
HIGH
×
Input bit length
20 bits
5
IW1N/DIL
Ip
20 bits
LOW
18 bits
16 bits
HIGH
20 bits
6
7
8
9
XTI
XTO
VSS
CKO
I
Oscillator input connection
Oscillator output connection
Ground
O
–
O
Oscillator output clock. Same frequency as XTI.
Input bit length select pin when INF2N is LOW, and right-channel data input when INF2N is HIGH.
IW1N and IW2N select the input data length as shown in the table for pin 5.
10
IW2N/DIR
Ip
11
12
13
14
15
16
MDT
MCK
Ip
Ip
Ip
Ip
Ip
Ip
Attenuator serial data input
Attenuator bit clock input
MLEN
RSTN
MUTE
DEMP
Attenuator latch enable input
System reset. Reset operation when LOW, and normal operation when HIGH.
Mute control signal. Muting when HIGH, and normal operation when LOW.
Deemphasis control signal. OFF when LOW, and ON when HIGH.
Deemphasis filter select inputs
FSEL1
LOW
LOW
HIGH
HIGH
FSEL2
LOW
HIGH
LOW
HIGH
Sampling frequency (fs)
44.1 kHz
17
18
FSEL1
FSEL2
Ip
Ip
48 kHz
Test mode
32 kHz
19
20
21
22
OW20N
SYNCN
TMOD1
VDD
Ip
Ip
Ip
–
Output bit length select pin. 20-bit output when LOW, and 18-bit output when HIGH.
Sync mode select pin. Normal sync mode when LOW, and jitter-free mode when HIGH.
Dither processing control. ON when LOW, and OFF when HIGH.
5 V supply
NIPPON PRECISION CIRCUITS—4
NPC [ NIPPON PRECISION CIRCUITS INC ]
