Cirrus-logic CDB5343 Uživatelský manuál stáhnout pdf (Strana 13)

DS687DB2 13

CDB5343

13.2 FFTlm

Figure 18 shows a typical FFT of the output from the CS5343 on the CDB5343 with a 2 Vrms, 1 kHz sinewave input. For this plot, the device was

configured for Single-Speed Mode with VA = 5 V.

Figure 18. FFT from CDB5343 Output

ColorSweep Trace Line Style Thick Data Axis Comment

1 1 Blue Solid 1 Fft.Ch.1 Ampl Left

1 2 Red Solid 1 Fft.Ch.2 Ampl Right

-180

-170

-160

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

-180

-170

-160

-150

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

20 20k50 100 200 500 1k 2k 5k 10k

CS5343 FFT, 1 kHz Full-scale Input, VA = 5 V, SSM Master Mode

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 22 23

Features 1
Description 1
TABLE OF CONTENTS 2
LIST OF FIGURES 3
LIST OF TABLES 3
1. SYSTEM OVERVIEW 4
3. CRYSTAL OSCILLATOR 4
5. POWER 5
7. ANALOG INPUT 5
8. CONNECTORS 6
9. JUMPER AND SWITCH SETTINGS 6
9.2.2 CS8406 7
9.2.3 MCLK 7
9.2.4 SCLK, LRCK 7
9.2.5 SPEED 7
9.2.6 MCLK/LRCK Ratio 7
10.RESET 8
11.EVALUATING THE CS5344 8
12.PERFORMANCE PLOTS 9
10 DS687DB2 10
DS687DB2 11 11
13.CDB PERFORMANCE CURVES 12
13.2 FFTlm 13
14.CDB SCHEMATICS 14
DS687DB2 15 15
DS687DB2 16 16
DS687DB2 17 17
DS687DB2 18 18
19 DS687DB2 19
15.CDB LAYOUT 20
DS687DB2 21 21
22 DS687DB2 22
16.REVISION HISTORY 23

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