Cirrus-logic CS5461A Manuel d'utilisateur télécharger pdf (Page 34)

CS5461A

34 DS661F3

6.23 Temperature Offset Register ( T

off

)

Address: 30

Default = 0xF3D35A = -0.0951126

Temperature offset (T

off

) is used to remove the temperature channel’s offset at the zero degree reading. Values

are represented in two's complement notation and in the range of -1.0  T

off  1.0, with the binary point to the

right of the MSB.

6.24 Apparent Power Register ( S )

Address: 31

Apparent power (S) is the product of the V

RMS

and I

RMS

. The value is represented in unsigned binary notation

and in the range of 0.0  S  1.0, with the binary point to the left of the MSB.

MSB LSB

-(2

-1

-2

-3

-4

-5

-6

-7

.....

-17

-18

-19

-20

-21

-22

-23

MSB LSB

-1

-2

-3

-4

-5

-6

-7

-8

.....

-18

-19

-20

-21

-22

-23

-24

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 43 44

Features 1
Description 1
TABLE OF CONTENTS 2
DS661F3 3 3
LIST OF FIGURES 4
LIST OF TABLES 4
1. OVERVIEW 5
2. PIN DESCRIPTION 6
ANALOG CHARACTERISTICS 7
VOLTAGE REFERENCE 8
DIGITAL CHARACTERISTICS 9
SWITCHING CHARACTERISTICS 10
DS661F3 11 11
ABSOLUTE MAXIMUM RATINGS 12
4. THEORY OF OPERATION 13
4.4 Linearity Performance 14
5. FUNCTIONAL DESCRIPTION 15
5.4.1 Normal Format 16
5.4 Energy Pulse Output 16
Positive Energy 17
Negative Energy 17
Pulse Output E3 18
5.6 No Load Threshold 19
5.8 Voltage Reference 20
5.9 System Initialization 20
5.10 Power-down States 20
5.12 Event Handler 21
5.13 Serial Port Overview 22
5.13.1 Serial Port Interface 22
5.14 Commands 23
Active Active (Real) Power 24
5.14.6 Calibration 25
6. REGISTER DESCRIPTION 26
K1024 31
6.21 Control Register 33
7.1.1 Calibration Sequence 35
Reference 36
7.2 Phase Compensation 37
7.3 Active Power Offset 37
8. AUTO-BOOT MODE USING E 38
9. BASIC APPLICATION CIRCUITS 39
40 DS661F3 40
DS661F3 41 41
24L SSOP PACKAGE DRAWING 42
11. ORDERING INFORMATION 43
13. REVISION HISTORY 44

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Cirrus-logic CS5461A Manuel d'utilisateur Page 34

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