CS4922-CL 데이터 시트보기 (PDF) - Cirrus Logic

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CS4922-CL

MPEG/G.729A Audio Decoder System

Cirrus Logic 

CS4922

SWITCHING CHARACTERISTICS - AUXILIARY DIGITAL AUDIO PORT

Input Sample Rate

AUXCLK Period

Parameter

AUXCLK to AUXLR valid

AUXCLK to AUXOUT data valid

AUXIN data setup time to AUXCLK

AUXIN data hold time from AUXCLK

Symbol Min

(Note 16) Fs

16

(Note 17) tsclk

-

tlrun

0

tdoun 0

tdisu 50

tdiho

3

Typ

-

1/(32Fs)

1/(64Fs)

1/(128Fs)

-

-

-

-

Max Units

48 kHz

-

ns

25 ns

25

-

ns

-

ns

Notes: 16. Fs determined by clock input rate and configuration of on-chip PLL.

17. AUXCLK frequency selectable @ 32, 64, or 128 Fs via AUXCN register bits 1:0.

AUXCLK

AUXLR

AUXOUT

AUXIN

Fs

Tsclk

Tlrun

Tdoun

Tdisu

Tdiho

Figure 5. Auxiliary Audio Port Timing

13

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