Cirrus-logic CS5378 Manual do Utilizador descarregar pdf (Página 87)

CS5378

DS639F3 87

25.REVISION HISTORY

Revision Date Changes

PP1 FEB 2004 Initial “Preliminary Product” release.

F1 OCT 2005 Added lead-free device ordering information. Added MSL data.

F2 SEP 2008 Rev B. Update Single-S part numbers. Remove TBS impulse mode.

OCT 2010 Removed lead-containing device

ordering information.

1 2 ... 82 83 84 85 86 87 88

Features 1
Description 1
TABLE OF CONTENTS 2
DS639F3 3 3
LIST OF FIGURES 4
LIST OF TABLES 5
1. GENERAL DESCRIPTION 6
1.1 Digital Filter Features 6
1.3 System Level Features 7
1.4 Configuration Interface 8
DS639F3 9 9
SPI Registers 11
Digital Filter Registers 11
ABSOLUTE MAXIMUM RATINGS 12
THERMAL CHARACTERISTICS 13
DIGITAL CHARACTERISTICS 13
POWER CONSUMPTION 13
SWITCHING CHARACTERISTICS 14
3. SYSTEM DESIGN WITH CS5378 18
3.1 Power Supplies 18
3.2 Reset Control 18
3.3 PLL and Clock Generation 18
DS639F3 19 19
BOOT Reset Mode 21
1 EEPROM boot 21
0 Microcontroller boot 21
DS639F3 23 23
DS639F3 25 25
Serial Read from EEPROM 26
DS639F3 27 27
Sample Command: 28
Write ROM Coefficients - 0x04 28
Filter Start - 0x07 28
DS639F3 29 29
Table 8. Example EEPROM File 29
DS639F3 32 32
Figure 19. SPI Registers 32
DS639F3 33 33
DS639F3 34 34
DS639F3 35 35
Correction 36
10.4 Modulator Data Input 37
10.5 Modulator Flag Input 37
Computation Cycles 39
Standby Mode 39
12.SINC FILTER 40
12.1 SINC1 Filter 40
12.2 SINC2 Filter 40
12.3 SINC3 Filter 40
SINC filters 41
DS639F3 43 43
13.FIR FILTER 44
13.1 FIR1 Filter 44
13.2 FIR2 Filter 44
13.3 On-Chip FIR Coefficients 45
SINC + FIR filters 46
DS639F3 47 47
Minimum phase group delay 48
DS639F3 49 49
Figure 27. FIR1 Coefficients 49
DS639F3 50 50
DS639F3 51 51
14.IIR FILTER 52
14.1 IIR Architecture 52
14.2 IIR1 Filter 52
14.3 IIR2 Filter 52
14.4 IIR3 Filter 53
14.5 On-Chip IIR Coefficients 53
IIR filters 54
DS639F3 55 55
DS639F3 56 56
DS639F3 57 57
DS639F3 58 58
DS639F3 59 59
DS639F3 60 60
DS639F3 62 62
DS639F3 63 63
DS639F3 64 64
DS639F3 65 65
20.REGISTER SUMMARY 66
20.1 SPI Registers 66
DS639F3 67 67
SPI Address: 0x00 67
DS639F3 68 68
SPI Address: 0x03 68
DS639F3 69 69
SPI Address: 0x06 69
DS639F3 70 70
SPI Address: 0x09 70
20.2 Digital Filter Registers 71
DS639F3 72 72
DF Address: 0x00 72
DS639F3 73 73
DF Address: 0x0E 73
DS639F3 74 74
DF Address: 0x20 74
DS639F3 75 75
DF Address: 0x21 75
DS639F3 76 76
DF Address: 0x25 76
DF Address: 0x29 77
DS639F3 77 77
DS639F3 78 78
DF Address: 0x2A 78
DS639F3 79 79
DF Address: 0x2B 79
DS639F3 80 80
DF Address: 0x2C 80
DS639F3 81 81
DF Address: 0x2E 81
DS639F3 82 82
DF Address: 0x2F 82
22.PACKAGE DIMENSIONS 85
28L SSOP PACKAGE DRAWING 85
CS5378-ISZ (Lead Free) 86
25.REVISION HISTORY 87
DS639F3 88 88

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