Cirrus-logic CS5571 Manual do Utilizador descarregar pdf (Página 21)

CS5571

DS768PP1 21

3/25/08

10:56

Figures 11, 12, and 13 indicate the spectral performance of the CS5571 with a 0 dB, -6 dB and - 12 dB

5.55 kHz input signal. In each case, the captured data was windowed with a seven-term window function

that exhibits 4.3 dB of attenuation before being processed by the FFT.

-160

-140

-120

-100

-80

-60

-40

-20

0 10k 20k 30k 40k 50

Frequency (Hz)

5.55 kHz, -12 dB

32k Samples @ 100 kSps

-160

-140

-120

-100

-80

-60

-40

-20

0 10k 20k 30k 40k 50

Frequency (Hz)

5.55 kHz, -6 dB

32k Samples @ 100 kSps

-160

-140

-120

-100

-80

-60

-40

-20

0 10k 20k 30k 40k 50

Frequency (Hz)

5.55 kHz, 0 dB

32k Samples @ 100 kSps

Figure 11. Spectral Performance, 0 dB Figure 12. Spectral Performance, -6 dB

Figure 13. Spectral Performance, -12 dB

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 33 34

Features & Description 1
General Description 1
TABLE OF CONTENTS 2
LIST OF FIGURES 3
LIST OF TABLES 3
ANALOG CHARACTERISTICS T 4
(CONTINUED) T 5
SWITCHING CHARACTERISTICS 6
(CONTINUED) 7
13. SCLK = MCLK/2 7
MSB MSB–1 8
DIGITAL CHARACTERISTICS 10
GUARANTEED LOGIC LEVELS 11
ABSOLUTE MAXIMUM RATINGS 12
2. OVERVIEW 13
3. THEORY OF OPERATION 13
3.2 Clock 14
3.4 Analog Input 15
3.3 Voltage Reference 15
3.5 Output Coding Format 16
DS768PP1 17 17
±2.5V Analog Supplies 17
18 DS768PP1 18
DS768PP1 19 19
3.8 Converter Performance 20
DS768PP1 21 21
Dither Off 22
DS768PP1 23 23
Dither On 23
3.9 DITHER 24
DS768PP1 25 25
3.11 Serial Port 26
DS768PP1 27 27
28 DS768PP1 28
DS768PP1 29 29
4. PIN DESCRIPTIONS 30
24L SSOP PACKAGE DRAWING 33
6. ORDERING INFORMATION 34
8. REVISION HISTORY 34

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