CDB4225 查看數據表（PDF） - Cirrus Logic

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CDB4225

Digital Audio Conversion System

Cirrus Logic 

CS4225

16-Bit Audio A/D Decimation Filter Characteristics

(See graphs towards the

end of this data sheet)

Parameter

Symbol Min

Typ

Max Units

Passband ( to -3 dB corner)

(Fs is conversion freq.)

0

-

0.454Fs Hz

Passband Ripple

-

-

±0.1

dB

Transition Band

0.40Fs

-

0.60Fs Hz

Stop Band

≥ 0.60Fs

-

-

Hz

Stop Band Rejection

75

-

-

dB

Group Delay

-

10/Fs

-

s

Group Delay Variation vs. Frequency

-

-

0.0

µs

D/A Interpolation Filter Characteristics (See graphs toward the end of this data sheet)

Parameter

Symbol Min

Typ

Max Units

Passband (to -3 dB corner)

(Fs is conversion freq.)

0

-

0.476Fs Hz

Passband Ripple

-

-

±0.1

dB

Transition Band

0.442Fs

-

0.567Fs Hz

Stop Band

≥0.567Fs

-

-

Hz

Stop Band Rejection

50

-

-

dB

Stop Band Rejection

with Ext. 2Fs RC filter

57

-

-

dB

Group Delay

-

12/Fs

-

s

Group Delay Variation vs. Frequency

-

-

TBD

µs

4

DS86PP8

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