STW5095(2005) Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

fabricante

STW5095
(Rev.:2005)

Low Power Asynchronous Stereo Audio Codec with Integrated Power Amplifiers

STMicroelectronics 

16 Typical Performance Plots

STw5095

Figure 19. ADC 96 kHz audio path measured

filter response

0

-10

-20

-30

-40

-50

-60

-70

-80

10

100

1k

10k

Frequency [Hz]

100k

Figure 20. ADC 96 kHz audio in-band

measured filter response

1

0

-1

-2

-3

-4

-5

0 5k 10k 15k 20k 25k 30k 35k 40k 45k

Frequency [Hz]

The plot is extended down to 5 Hz to show the high pass filter

implemented in the ADC 96 kHz sample rate,

96 kHz audio filter selected signal from Mic input

96 kHz sample rate,

96 kHz audio filter selected signal from Mic input.

Figure 21. ADC voice TX path measured filter Figure 22. ADC voice TX path measured in-

response

band filter response

0

-10

-20

-30

-40

-50

-60

-70

100

1k

10k

Frequency [Hz]

0.5

0.4

0.3

0.2

0.1

0

-0.1

-0.2

-0.3

-0.4

-0.5 500 1k 1500 2k 2500 3k 3500 4k

Frequency [Hz]

8 kHz Sample rate, tx voice filter selected.

Signal from Mic input

8 kHz sample rate, tx voice filter selected signal from Mic input.

Figure 23. DAC voice (RX) digital filter

characteristics

0

-10

-20

-30

-40

-50

-60

-70

100

1k

10k

Frequency [Hz]

8 kHz sample rate, rx voice filter

Figure 24. DAC voice (RX) in-band digital filter

characteristics

0.5

0.4

0.3

0.2

0.1

0

-0.1

-0.2

-0.3

-0.4

-0.5

500 1k 1500 2k 2500 3k 3500 4k

Frequency [Hz]

8 kHz sample rate, rx voice filter

64/69

Share Link: