McIntosh C49

C49
21 22
DIGITAL 751973 SCH 3 of 3
3
3.32k
R51
475
R46
75
R47
.1µF
C53
.1µF
C59
47.5K
R58
75
R59
75
R60
75
R61
.01µF
C45
.01µF
C47
.01µF
C48
COAX 1
OPT I 1
DIG ITAL AUD IO IN PU TS
.1µF
C39
L12
L13
.1µF
C64
.1µF
C69
75
R64
47.5
R69
47.5
R66
+3.3VD
1.96k
R683.32k
R65
4.75k
R70
1k
R67
47.5K
R63
VOUT
3
GND
2
VIN
1
TAB
4
U23
12pF
C62
12pF
C63
27MHz
31
Y2
1.58k
R48
475
R50
47.5K
R49
DSDL+
DSDL-
DSDR-
DBCK-
SPDIF-
DSDR+
DBCK+
SPDIF+
47.5
R56
47.5
R54
47.5
R55
47.5
R41
.1µF
C40
EN 3,4
9
4Y
10
3Y
11
GN D
12
Vcc
13
2Y
14
1Y
15
EN 1,2
16
1A
1
1B
2
2A
3
2B
4
3A
5
3B
6
4A
7
4B
8
U10
CD / SAC D DET EC TOR
MCT INPU T
4
2
1
3
Vc c
GND
5
U13
4
2
1
3
Vcc
GND
5
U14
100K
R52
.1µF
C51
100K
R53
100pF
C43
100pF
C44
4
2
1
3 5
Vc c
GND
U11
4
2
1
3 5
Vc c
GND
U12
L4
L5
L6
L7
L8
L9
L10
L11
.01µF
C55
1000pF
C50
D1
D2
3 6 1
2 5
8
7
4
9
11
10
J3
+3.3VD
+3.3VD
+3.3VD +3.3VD
+3.3VD
+3.3VD
+3.3VD
+3.3VD
+3.3VD
DIN SPDIF
+3.3VD
+3.3VD
+3.3VD
+3.3VD
+2. 5V
SDOUT
12
OLRCK
14
MS_SEL
15
VL
17
SAIF
19
SRC_UNLOCK
20
TDM_IN
11
OSCLK
13
GND
16
SAOF
18
SDIN
9
ILRCK
7
BYPASS
6
GND
4
XTI
2
XTO
1
MCLK_OUT
10
VD
3
RST
5
ISCLK
8
U24
COAX 2
OPT I 2
I2C CL
I2C DA
47.5K
R57
RESET
RXP6
12
RXP7
13
RXP4
10
AGN D
7
FILT
8
RXN
5
RXP2
2
RXP1
3
SD A/CDOU T
17
SC L/CCLK
16
GPO1
19
DGN D
22
VL
21
RMCK
24
OSC LK
27
SD OU T
26
RST
9
RXP5
11
AD 0/CS
14
RXP3
1
RXP0
4
VA
6
GPO0
20
AD 2/GPO2
18
AD 1/CDIN
15
OLR CK
28
OM CK
25
VD
23
U15
.01µF
C57
.01µF
C49
.01µF
C54
.01µF
C41
.022µF
C46
.01µF
C56
GN D
8
3Y
9
2B
6
3A
11
1B
3
4A
14
A/B
1
Vcc
16
1A
2
1Y
4
2A
5
2Y
7
3B
10
4Y
12
4B
13
G
15
U18
+3.3VD
GN D
8
3Y
9
2B
6
3A
11
1B
3
4A
14
A/B
1
Vcc
16
1A
2
1Y
4
2A
5
2Y
7
3B
10
4Y
12
4B
13
G
15
U25
+3.3VD
USB ON
4
2
1
3
Vc c
GND
5
U21
+3.3VD
GND
4
2
1
3
Vc c
GND
5
U20
+3.3VD
4
2
1
3
Vcc
GND
5
U22
+3.3VD
I2SLRCK / DSDL
I2SDATA / DSDR
I2SDATA / DSDL
DSDR
DSDL
+3.3VD
SRC B CLK
SRC D AT A
SRC LR CK
DIN DSD R
DIN DSD L
DIN BC LK
1
0 RESET
RUN
1
0
USB ON
USB OFF
S/PD IF REC EIVER
SAM PLE RAT E
4
2
1
3
Vcc
GND
5
U17
+3. 3VD
4
2
1
3 5
Vc c
GND
U16
+3. 3VD
MCT ON
1
0
MCT ON
MCT OFF
6-32
GP3
.1µF
C37
22µF
C38
22µF
C42
10µF
C52
10µF
C58
22µF
C68
22µF
C65
SACD FL
1
0
SACD
CD
CON VER TER
10k
R62
DS2
DSD
USB I2SLRCK
USB BCLK
USB DSDR
USB DSDL
USB I2SDATA
I2SBCLK / DSDBCLK
USB / DIN BC LK
4
2
1
3
Vc c
GND
5
U19
+3.3VD
DSD FL
.1µF
C66
+3.3VD
.1µF
C61
+3.3VD
.1µF
C67
+3.3VD
.1µF
C60
+3.3VD
GND
0
R39
0
R40
75
R45
1.58k
R43
4
5
3
2
1
Vcc
GND
J1
4
5
3
2
1
Vcc
GND
J2
475
R44
1.58k
R42
Connect directly to Pin 7
COAX 1
COAX 2
OPT 1
OPT 2
75R124
75
R125