ALC202 데이터 시트보기 (PDF) - Realtek Semiconductor

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ALC202

TWO CHANNEL AC97 AUDIO CODEC

Realtek Semiconductor 

7.1.3 Digital Filter Characteristics

Filter

ADC Lowpass Filter

DAC Lowpass Filter

Symbol

Passband

Stopband

Stopband Rejection

Passband

Frequency Response

Passband

Stopband

Stopband Rejection

Passband

Frequency Response

Minimum

0

28.8

0

28.8

7.1.4 S/PDIF output Characteristics

Dvdd= 3.3V, Tambient=250C, with 75Ω external load.

Parameter

Symbol

Minimum

High level output voltage

VOH

3.0

Low level output voltage

VOL

-

7.2 AC Timing Characteristics

7.2.1 Cold Reset

Parameter

RESET# active low pulse width

RESET# inactive to BIT_CLK

Startup delay

Symbol

Trst_low

Trst2clk

Minimum

1.0

162.8

Typical

-

-76.0

+- 0.15

-

-78.5

+- 0.15

Typical

3.3

0

Typical

-

-

ALC202/ALC202A

Maximum

19.2

19.2

Units

KHz

KHz

dB

dB

KHz

KHz

dB

dB

Maximum

0.5

Units

V

V

Maximum

-

-

Units

µs

ns

7.2.2 Warm Reset

Parameter

SYNC active high pulse width

SYNC inactive to BIT_CLK

Startup delay

Cold reset timing diagram

Symbol

Tsync_high

Tsync2clk

Minimum

1.0

162.8

Typical

-

-

Maximum

-

-

Units

µs

ns

2002/07/30

Warm reset timing diagram

26

Rev.1.28

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