CS4361

DS672A2

7

COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE

The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the desired sam-

ple rate by multiplying the given characteristic by Fs. (See note 5)

Notes: 2. Response is clock-dependent and will scale with Fs.

3. 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.

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

5. Amplitude vs. Frequency plots of this data are available in “Appendix” on page 21.

Parameter

Symbol

Min

Typ

Max

Unit

Combined Digital and On-chip Analog Filter Response

Single Speed Mode

Passband (Note 2)

to -0.05 dB corner

to -3 dB corner

0

0

-

-

.4780

.4996

Fs

Fs

Frequency Response 10 Hz to 20 kHz

-.01

-

+.08

dB

StopBand

.5465

-

-

Fs

StopBand Attenuation

(Note 3)

50

-

-

dB

Group Delay

tgd

-

10/Fs

-

s

De-emphasis Error (Note 4)

Fs = 44.1 kHz

-

-

+.05/-.25

dB

Combined Digital and On-chip Analog Filter Response

Double Speed Mode

Passband (Note 2)

to -0.1 dB corner

to -3 dB corner

0

0

-

-

.4650

.4982

Fs

Fs

Frequency Response 10 Hz to 20 kHz

-.05

-

+.2

dB

StopBand

.5770

-

-

Fs

StopBand Attenuation

(Note 3)

55

-

-

dB

Group Delay

tgd

-

5/Fs

-

s

Combined Digital and On-chip Analog Filter Response

Quad Speed Mode

Passband (Note 2)

to -0.1 dB corner

to -3 dB corner

0

0

-

-

0.397

0.476

Fs

Fs

Frequency Response 10 Hz to 20 kHz

0

-

+0.00004

dB

StopBand

0.7

-

-

Fs

StopBand Attenuation

(Note 3)

51

-

-

dB

Group Delay

tgd

-

2.5/Fs

-

s