Akai MPC3000 Service Manual page 56

PCM69AP-4
(18
bit
serial
input D/A converter)
+B FOR
ANALOG
(T)+VCC
+VDD@
+6 FOR
DIGITAL
V CCNMON (L)<
0VCCMCL)
TP1
Ay
TEST TERM
I
NAL
1
CURRENT OUT
(LX
QOI-OUT(L)
DATA
(L)AX DATA INPUT(L)
SERVO
FILTER< QnSERVO
DC
WDCK@<
WORD CLOCK INPUT
REFERENCE FILTER-^
0REF
DC
SYS-CLK@< SYSTEM CLOCK INPUT
CURRENT
OUTCRX @I-OUT(R)
BCKAX
BIT CLOCK INPUT
V
COMMON
(R)
<
0VCOM
(R)
DATA
(R)AX DATA
I
NPUT
(R)
ANALOG GND
(e)A.
GND
D.GND® DIGITAL GND
5841
HP
(18 bit
input 8
fs
over-sampling
digital filter)
PIN
No.
PORT NAME
I/O
FUNCTION
1,6*
WSL1-2
1
IN/OUT
data word
length select
pin.
CKI
mm
System
clock
input.
CKSL
n
System
clock select control (H
:
384
fs,
L
:
256
fs).
CKO 0
System clock output
pin (Bufferred
output
of
CKI).
Vss
-
To be grounded.
MEM
DSF1-2
n
De-emphasis
select control.
RST
mm
System
reset
pin.
10
BCKO
0
Bit
clock output.
DOR o
R-ch
8
fs
data
output.
WKEtM
DOL
o
L-ch
8
fs
data
output.
MEM
WCKO
0
Word
clock output.
14
Vdd
-
nsi
OFST
1
DC
off-set
addinq
pin
to
the output data.
f
16
LRCI
MM
Sampling
rate
(fs)
clock
of
the
input data.
17
BCKI
m
Input
bit
clock.
18
DIN
n
Input data.
'NOTE
Setting
Noise shaper
IN/OUT
data
word
length
WSL1
WSL2
H H
OFF
18
bit
20
bit
H
L
ON
18
bit
1
8
bit
L
H
ON
16
bit
18
bit
L
L
ON
16
bit
16
bit
Setting
De-emphasis
DSF1
DSF2 ON/OFF
selection
fs
selection
L L
ON
44.1
kHz
L
H
ON
48.0
kHz
H
H
ON
32.0
kHz
H
L
OFF
-