WM8352 datasheet(323/336 Pages) WOLFSON

tên linh kiện	WM8352

Giải thích chi tiết về linh kiện	Wolfson AudioPlus™ Stereo CODEC with Power Management

PDF	336 Pages

Scroll/Zoom	100%

nhà sản xuất	WOLFSON [Wolfson Microelectronics plc]

Trang chủ	http://www.wolfsonmicro.com

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323 / 336 page

Production Data

WM8352

PD, February 2011, Rev 4.4

323

28 DIGITAL FILTER CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ADC Filter

Passband

+/- 0.025dB

0.454fs

-6dB

0.5fs

Passband Ripple

+/- 0.025

Stopband

0.546fs

Stopband Attenuation

f > 0.546fs

-60

Group Delay

21/fs

ADC High Pass Filter

High Pass Filter Corner

Frequency

-3dB

3.7

-0.5dB

10.4

-0.1dB

21.6

DAC Filter

Passband

+/- 0.035dB

0.454fs

-6dB

0.5fs

Passband Ripple

+/-0.035

Stopband

0.546fs

Stopband Attenuation

f > 0.546fs

-55

Group Delay

29/fs

Terminology

Stop Band Attenuation (dB) – the degree to which the frequency spectrum is attenuated (outside audio band)

Pass-band Ripple – any variation of the frequency response in the pass-band region

28.1 DAC FILTER RESPONSES

MAGNITUDE(dB)

4.41k

8.82k

13.23k

17.64k

22.05k

26.46k

30.87k

35.28k

39.69k

44.1k

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

MAGNITUDE(dB)

2.205k

4.41k

6.615k

8.82k

11.025k

13.23k

15.435k

17.64k

19.845k

22.05k

-5m

-2m

999.99u

10m

13m

16m

19m

22m

25m

28m

31m

34m

37m

40m

Figure 81 DAC Digital Filter Frequency Response (Normal

Mode)

Figure 82 DAC Digital Filter Ripple (Normal Mode)

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