STW5094A datasheet(45/51 Pages) STMICROELECTRONICS

номер детали	STW5094A

подробное описание детали	18-bit Low Power Asynchronous Stereo Audio DAC with Integrated Power Amplifiers and Voice Codec

PDF	51 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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STw5094A

TYPICAL PERFORMANCE CHARACTERISTICS (simulations)

Plot 6.

In band Frequency response. FS=8 kHz

-1

-0.5

0.5

500

1000

1500

2000

2500

3000

3500

Freq. [Hz]

Digital Rx Voice Filter Characteristic

Plot 5.

Frequency response up to 2.5Fs

-70

-60

-50

-40

-30

-20

-10

2000 4000

6000

8000 10000 12000 14000 16000 18000 20000

Freq. [Hz]

Digital Rx Voice Filter Characteristic

Plot 3.

Frequency response up to 3.45 Fs

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0.5

1.5

2.5

Normalized Freq. [Fs]

Digital Audio Filter Characteristic

Plot 4.

In band Frequency response

-0.5

-0.4

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

Normalized Freq. [Fs]

Digital Audio Filter Characteristic

Plot 2.

The filter compensates for pre-emphasis used on some

audio CDs. The gain error from ideal filtering is lower

than 0.1dB. The de-emphasis filter selection implies a

flat treble control.

-10

-8

-6

-4

-2

100

1000

10000

Freq. [Hz]

De-emphasis Filter

Plot 1.

Bass and treble gains are independently selectable in

any combination. Filters characteristics at Fs=44.1kHz

are plotted

-10

-5

100

1000

10000

Freq. [Hz]

Bass-Treble controls

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