WM8772 datasheet(13/70 Pages) WOLFSON

部件名	WM8772

功能描述	24 BIT 192KHZ 6 CHANNEL CODEC WITH VOLUME CONTROL

PDF	70 Pages

Scroll/Zoom	100%

制造商	WOLFSON [Wolfson Microelectronics plc]

网页	http://www.wolfsonmicro.com

标志

13 / 70 page

Production Data

WM8772

PD Rev 4.1 October 2004

DIGITAL FILTER CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ADC Filter

±0.01 dB

0.4535fs

Passband

-6dB

0.5fs

Passband ripple

±0.01

Stopband

0.5465fs

Stopband Attenuation

f > 0.5465fs

-65

DAC Filter

±0.05 dB

0.444fs

Passband

-3dB

0.487fs

Passband ripple

±0.05

Stopband

0.555fs

Stopband Attenuation

f > 0.555fs

-60

Table 1 Digital Filter Characteristics

DAC FILTER RESPONSES

-120

-100

-80

-60

-40

-20

0.5

1.5

2.5

Frequency (Fs)

-0.2

-0.15

-0.1

-0.05

0.05

0.1

0.15

0.2

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

Frequency (Fs)

Figure 1 DAC Digital Filter Frequency Response

– 44.1, 48 and 96KHz

Figure 2 DAC Digital Filter Ripple –44.1, 48 and 96kHz

-80

-60

-40

-20

0.2

0.4

0.6

0.8

Frequency (Fs)

-1

-0.8

-0.6

-0.4

-0.2

0.2

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

Frequency (Fs)

Figure 3 DAC Digital Filter Frequency Response

– 192KHz

Figure 4 DAC Digital Filter Ripple – 192kHz

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