9
4
DS-8
DS-8
1. SPECIFICATIONS
Specifications and appearance are subject to change without notice for product improvement.
INPUT 1, 2 (COAXIAL IN)
Connector
RCA pin jack
Input Impedance
75
Ω
Normal Input Level
0.5 Vp-p
Format
S/P DIF (IEC60958 part 3)
INPUT 3 - 8 (OPTICAL IN)
Connector
Square shape optical
Format
S/P DIF (IEC60958 part 3)
OUTPUT 1, 2 (COAXIAL OUT)
Connector
RCA pin jack
Input Impedance
75
Ω
Normal Input Level
0.5 Vp-p
Format
S/P DIF (IEC60958 part 3)
OUTPUT 3 - 8 (OPTICAL OUT)
Connector
Square shape optical
Format
S/P DIF (IEC60958 part 3)
DC IN
12 V (Inner: Plus, Outer: Minus)
SAMPLING FREQUENCY
32 kHz ~ 96 kHz
DIMENSIONS
44 (H) x 482 (W) x 113 (D) mm
WEIGHT
1.4 kg (excluding accessories)
POWER REQUIREMENT
JPN
: 100 V AC
USA/CND
: 120 V AC
UK/EUR
: 230 V AC
POWER SUPPLY
Fostex AC adaptor AD-12A
2. CONTROLS, INDICATORS & CONNECTORS
1.
INPUT SELECTOR [
INPUT SELECTOR 1 - 8
]
2.
Input connector 8 [
S/P DIF INPUT 8
]
3.
Output connector 8 [
S/P DIF OUTPUT 8
]
4.
Power switch / POWER LED [
POWER
]
5.
Input connector 1, 2 [
S/P DIF INPUT 1, 2
]
6.
Input connector 3 - 7 [
S/P DIF INPUT 3 - 7
]
7.
Output connector 1, 2 [
S/P DIF OUTPUT 1, 2
]
8.
Output connector 3 - 7 [
S/P DIF OUTPUT 3 - 7
]
9.
DC IN connector [
DC IN 12V
]
S/P DIF DIGITAL AUDIO SELECTOR
8
S/P DIF OUTPUT
S/P DIF INPUT
INPUT SELECTOR
INPUT 8
OUTPUT 8
4
3
2
1
5
6
7
8
INPUT 7
4
3
2
1
5
6
7
8
INPUT 6
4
3
2
1
5
6
7
8
INPUT 5
4
3
2
1
5
6
7
8
INPUT 4
4
3
2
1
5
6
7
8
INPUT 3
4
3
2
1
5
6
7
8
INPUT 2
4
3
2
1
5
6
7
8
INPUT 1
4
3
2
1
5
6
7
8
POWER
OUTPUT 7
OUTPUT 6
OUTPUT 5
OUTPUT 4
OUTPUT 3
OUTPUT 2
OUTPUT 1
8
1
2
3
4
< FRONT PANEL >
1
2
3
4
5
6
7
S/P DIF INPUT
S/P DIF OUTPUT
12V
DC IN
1
2
3
4
5
6
7
5
6
7
8
9
< REAR PANEL >
4. CIRCUIT & BLOCK DIAGRAMS
MAIN / REGULATOR PCB
1
3
2
U11
GPIF37R1
INPUT3
(OPTICAL)
D+5
DGND
D+5
R15
3.3K
C13
0.1
DGND
R17
jumper
R16
2.2K
U2A
74HC04
1
3
2
U21
GPIF37R1
INPUT4
(OPTICAL)
D+5
DGND
D+5
R25
3.3K
C23
0.1
DGND
R27
jumper
R26
2.2K
U2B
74HC04
1
3
2
U31
GPIF37R1
INPUT5
(OPTICAL)
D+5
DGND
D+5
R35
3.3K
C33
0.1
DGND
R37
jumper
R36
2.2K
U2C
74HC04
1
3
2
U41
GPIF37R1
INPUT6
(OPTICAL)
D+5
DGND
D+5
R45
3.3K
C43
0.1
DGND
R47
jumper
R46
2.2K
U2D
74HC04
1
3
2
U51
GPIF37R1
INPUT7
(OPTICAL)
D+5
DGND
D+5
R55
3.3K
C53
0.1
DGND
R57
jumper
R56
2.2K
U2E
74HC04
1
3
2
U61
GPIF37R1
INPUT8
(OPTICAL)
D+5
DGND
D+5
R65
3.3K
C63
0.1
DGND
R67
jumper
R66
2.2K
U2F
74HC04
DGND
DGND
R11
75
L11
jumper
C15
33/25
R12
10
D+5
D11
DIODE
D12
DIODE
DGND
U1A
74HCU04
1
2
R13 47K
C11 22P
C12
47P
DGND
R14
2.2K
DGND
R21
75
L21
jumper
C25
33/25
R22
10
D+5
D21
DIODE
D22
DIODE
DGND
U1F
74HCU04
13
12
R23 47K
C21 22P
C22
47P
DGND
R24
2.2K
J11
YKC21-3079
INPUT1
(CO
AXIAL)
INPUT2
(CO
AXIAL)
U3A
74HC04
1
3
2
C15
0.1
D+5
DGND
U12
GPIF38T2
OUTPUT3
(OPTICAL)
1
3
2
C25
0.1
D+5
DGND
U22
GPIF38T2
OUTPUT4
(OPTICAL)
1
3
2
C35
0.1
D+5
DGND
U32
GPIF38T2
OUTPUT5
(OPTICAL)
1
3
2
C45
0.1
D+5
DGND
U42
GPIF38T2
OUTPUT6
(OPTICAL)
1
3
2
C55
0.1
D+5
DGND
U52
GPIF38T2
OUTPUT7
(OPTICAL)
1
3
2
C65
0.1
D+5
DGND
U62
GPIF38T2
OUTPUT8
(OPTICAL)
C1
10/35
S1
L2
jumper W4
L1
jumper W3
D1
DIODE
D+5
DGND
J4
2
(NON)
1
C92
0.1
C91
0.1
3
2
1
1
2
G
3
IN
OUT
W1
B
. IN-3P
U91
78M05
PCB
, REGULA
T
O
R
3
4
11
10
U1B
74HCU04
U1E
74HCU04
U4B
L12
jumper
34
6
1
2
TRANSFORMER
T11
DGND
R18
75
L13
BEAD
L14 BEAD
DGND
J12
YKC21-3079
OUTPUT1
(CO
AXIAL)
OUTPUT2
(CO
AXIAL)
5
6
9
8
U1C
74HCU04
U1D
74HCU04
U4C
L22
jumper
34
6
1
2
TRANSFORMER
T21
DGND
R28
75
L23
BEAD
L24 BEAD
C14
0.1
C24
0.1
DGND
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
IN5
IN1
IN6
IN2
IN7
IN3
IN8
IN4
OUT8
OUT1
OUT7
OUT2
OUT6
OUT3
OUT5
OUT4
DGND
J2
FPC-17P
U4F
U4D
U4E
D+5
U4A
DGND
R1
470
D2
LED
C17
33/25
C27
33/25
J1
YKB31-0012
J5
8283-3P
2
3
1
C2
100/10
C3
10/16
C4
10/16
C5
10/16
C6
0.1
C7
0.1
C8
0.1
C9
D+5
DGND
DGND
3
2
1
1
2
U3B
74HC04
3
4
U3C
74HC04
5
6
U3D
74HC04
9
8
U3E
74HC04
11
10
U3F
74HC04
13
12
1
2
3
4
5
6
9
8
11
10
13
12
1
2
3
4
5
1
2
3
4
5
8
9
10
11
12
13
2
1
