CS4245-CQZ datasheet(10/54 Pages) CIRRUS

No. de pieza	CS4245-CQZ

Descripción Electrónicos	105 dB, 24-Bit, 192 kHz Streo Sudio CODEC

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Fabricante Electrónico	CIRRUS [Cirrus Logic]

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CS4245

10

DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE

Notes: 6. Filter response is guaranteed by design.

7. For Single Speed Mode, the Measurement Bandwidth is 0.5465 Fs to 3 Fs.

For Double Speed Mode, the Measurement Bandwidth is 0.577 Fs to 1.4 Fs.

For Quad Speed Mode, the Measurement Bandwidth is 0.7 Fs to 1 Fs.

8. De-emphasis is available only in Single Speed Mode.

9. Response is clock dependent and will scale with Fs. Note that the amplitude vs. frequency plots of this

data (Figures 21 to 30) have been normalized to Fs and can be de-normalized by multiplying the X-axis

scale by Fs.

Parameter (Note 6,9)

Symbol

Min

Typ

Max

Unit

Combined Digital and On-chip Analog Filter Response

Single Speed Mode

Passband (Note 6)

to -0.05 dB corner

to -3 dB corner

0

-

.4780

.4996

Fs

Frequency Response 10 Hz to 20 kHz

-.01

-

+.08

dB

StopBand

.5465

-

Fs

StopBand Attenuation

(Note 7)

50

-

dB

Group Delay

tgd

-

10/Fs

-

s

De-emphasis Error (Note 8)

Fs = 44.1 kHz

-

+.05/-.25

dB

Combined Digital and On-chip Analog Filter Response

Double Speed Mode

Passband (Note 6)

to -0.1 dB corner

to -3 dB corner

0

-

.4650

.4982

Fs

Frequency Response 10 Hz to 20 kHz

-.05

-

+.2

dB

StopBand

.5770

-

Fs

StopBand Attenuation

(Note 7)

55

-

dB

Group Delay

tgd

-

5/Fs

-

s

Combined Digital and On-chip Analog Filter Response

Quad Speed Mode

Passband (Note 6)

to -0.1 dB corner

to -3 dB corner

0

-

0.397

0.476

Fs

Frequency Response 10 Hz to 20 kHz

0

-

+0.00004

dB

StopBand

0.7

-

Fs

StopBand Attenuation

(Note 7)

51

-

dB

Group Delay

tgd

-

2.5/Fs

-

s

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