2 isolating transformer requirements, Figure 11. professional input circuit, Figure 13. consumer input circuit – Cirrus Logic CS8415A User Manual
Page 37: Figure 14. s/pdif mux input circuit, Figure 15. ttl/cmos input circuit, Figure 11, Figure 12, Figures 11, Figure 13, Figure 14
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DS470F4
37
CS8415A
13.2
Isolating Transformer Requirements
Please refer to the application note AN134: AES and SPDIF Recommended Transformers for resources on
transformer selection.
1
XLR
Twisted
Pair
110
Ω
110
Ω
CS8415A
RXP0
RXN0
* See Text
1
XLR
Twisted
Pair
110
Ω
110
Ω
CS8415A
RXP0
RXN0
0.01 F
µ
0.01 F
µ
* See Text
Figure 11. Professional Input Circuit
Figure 12. Transformerless Professional Input Circuit
RCA Phono
RXP0
RXN0
CS8415A
Coax
75
Ω
75
Ω
0.01
µF
0.01
µF
RXP6
RXN0
RXP0
RXP5
75
Ω
.01
µF
.01
µF
.01
µF
.
..
.01
µF
75
Ω
Coax
75
Ω
75
Ω
75
Ω
Coax
75
Ω
Coax
Figure 13. Consumer Input Circuit
Figure 14. S/PDIF MUX Input Circuit
RXP0
RXN0
CS8415A
0.01
µF
0.01
µF
TTL/CMOS
Gate
Figure 15. TTL/CMOS Input Circuit
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