CS8422-DNZR Cirrus Logic Inc, CS8422-DNZR Datasheet - Page 65

• Manufacturer Part Number: CS8422-DNZR
• Description: IC 24-bit 192kHz SRC S/PDIF Receiver
• Manufacturer: Cirrus Logic Inc

DS692PP1
12.3.1 Attenuating Input signals
Figure 28. S/PDIF MUX Input Circuit – Single-Ended
Figure 26. Professional Input Circuit – Differential
Figure 29. S/PDIF MUX Input Circuit – Digital Mode
Twisted
110 Ω
Pair
Coax
Coax
Coax
75 Ω
75 Ω
75 Ω
boxes held to the same potential, and the cable shield might be depended upon to make that electrical con-
nection. Generally, it is a good idea to provide the option of grounding or capacitively coupling the shield to
the chassis.
The input signals to the RX, RXP, and RXN pins in all modes of operation are limited to amplitudes equal
to, or less than +3.3 V. In some cases it may be necessary to attenuate the input signal so the input to the
device is within the valid operating range.
gle-ended and differential inputs. In both cases, equations (1) and (2) must be satisfied simultaneously.
XLR
1
TTL/CMOS
* See Text
75 Ω
75 Ω
75 Ω
Mode
.01µF
.01µF
.01µF
110 Ω
CS8422
RX3
RX0
CS8422
RX3
RX2
RX0
.
. .
CS8422
RXP
RXN
Figures 31
Figure 27. Transformerless Professional Input Cir-
Figure 30. TTL/CMOS Input Circuit – Differential
and
Receiver Mode 1 Single-Ended Input Circuit –
Twisted
110 Ω
Coax
Pair
75 Ω
32
illustrate how this should be done for both sin-
1
TTL/CMOS
XLR
RCA Phono
cuit – Differential Mode
Differential Mode
75 Ω
* See Text
110 Ω
0.01 µF
Mode
0.01µF
0.01 µF
0.01 µF
0.01 F
0.01 F
µ
µ
RXN
RXP
CS8422
CS8422
RXP
RXN
CS8422
RXP0
RXN0
CS8422
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