CS8422 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS8422

24-bit, 192-kHz, Asynchronous Sample Rate Converter with Integrated Digital Audio Interface Receiver

Cirrus Logic 

CS8422

12.6 Jitter Tolerance

The CS8422 is compliant to the jitter tolerance requirements set forth in the AES-3 and IEC60958-4 speci-

fications. Figure 37 shows the receiver jitter tolerance template as illustrated in the AES3 and IEC60958-4

specifications along with the measured tolerance of the CS8422.

100

10

1

0.1

10

100

1000

10000

Jitter Frequency (Hz)

100000

CS8422

AES3 Limit

Figure 37. Jitter Tolerance Template

12.7 Group Delay

The group delay introduced by the CS8422 depends on the type of interface selected, and input and output sample

rates of the sample rate converter. The expression for the group delay through the CS8422 with the use of the sam-

ple rate converter is shown below, where the interface delay is 3 OLRCK periods in all modes except AES3 direct

mode, in which it is 2 OLRCK periods. If the sample rate converter is not being used, then the approximate group

delay will be equal to the interface delay.

TotalGroupDelay

=





F-8---.-s7--i

+

F----5-s--o--

+

In

terfaceDel

ay

DS692F1

69

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