Specifications

Bluegiga Technologies Oy
Page 44 of 64
Impedance matching to 75 ohm
DC block
Impedance matching to 75 ohm
Buff ering required to drive 75 ohm load
DC bias f or the comparator input
Comparator
1
2
U1-A
74HC14D
3
4
U1-B
74HC14D
5
6
U1-C
74HC14D
9
8
U1-D
74HC14D
R 1
560R, 50V, 0.06 3W
R 2
560R, 50V, 0.06 3W
R 3
560R, 50V, 0.06 3W
R4
120 R, 50 V, 0.063W
C1
0.15uF/10V/X5R
1
2
J1
RCA_RED
1
2
J2
RCA_RED
R5
150 R, 50 V, 0.063W
R6
150 R, 50 V, 0.063W
C2
10000pF/25V/X7R
R11
470 K, 50V, 0.063 W
R12
10K, 50 V, 0.063W
R13
1.0K, 5 0V, 0.063 W
R14
1.0K, 5 0V, 0.063 W
R15
10 K, 50V, 0.06 3W
C4
1uF/6.3V/X5R/10%
C5
1uF/6.3V/X5R/10%
-
+
1
2
3
4
5
U3
MCP6541U
C6
0.15uF/10V/X5R
C7
0.15uF/10V/X5R
R16
100 K, 50V, 0.063 W
2
13
D1
ESD_PROTECTION
2
13
D2
ESD_PROTECTION
3V3
SPDIF_IN
SPDIF_OU T
3V3
3V3
Figure 25: Example circuit for SPDIF interface (co-axial)