Cirrus-logic CS5460A User Manual download pdf (Page 20)

CS5460A

20 DS487F5

VA+ VD+

CS5460A

0.1 µF



235nF

500



VIN+

VIN-

IIN-

IIN+

PFMON

CPUCLK

XOUT

XIN

Optional

Clock

Source

RESET

SDI

SDO

SCLK

INT

EDIR

EOUT

0.1 µF

VREFIN

VREFOUT

DGND

13 4

To Service

2.5 MHz to

20 MHz

0.1 µF

10 k



VA-

V+

* Refer to Input Protection

To Service

** Refer to Input Filtering

I+

I-

V-

Serial

Data

Interface

ISOLATION

Mech. Counter

Stepper Motor

Burden



240 VAC

NOTE: Current channel

input measures voltage

(just like voltage input).

V-

Vdiff

I+

I-

Idiff

100 µF

Figure 9. Typical Connection Diagram (One-Phase 3-Wire - No Neutral Available)

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 53 54

Features 1
Description 1
TABLE OF CONTENTS 2
LIST OF FIGURES 4
LIST OF TABLES 4
ANALOG CHARACTERISTICS 5
5V DIGITAL CHARACTERISTICS 7
3.3 V DIGITAL CHARACTERISTICS 8
ABSOLUTE MAXIMUM RATINGS 8
SWITCHING CHARACTERISTICS 9
10 DS487F5 10
DS487F5 11 11
12 DS487F5 12
2.2 Performing Measurements 13
Gain (dB) 14
Configurations 16
(just like voltage input) 17
NOTE: Current channel 17
18 DS487F5 18
DS487F5 19 19
20 DS487F5 20
3. FUNCTIONAL DESCRIPTION 21
3.1 Pulse-Rate Output 21
Counter Format 22
3.2.1 Normal Format 22
DS487F5 23 23
Connector to 24
Calibrator 24
DS487F5 25 25
26 DS487F5 26
DS487F5 27 27
±250 mV on both input 27
±50 mV.) 27
3.8.3 Calibration Sequence 28
DS487F5 29 29
(DC or AC) 30
3.9 Phase Compensation 31
3.11 Power Offset Register 32
DS487F5 33 33
3.13 Input Filtering 34
DS487F5 35 35
36 DS487F5 36
DS487F5 37 37
3.15 Improving RFI Immunity 38
3.16 PCB Layout 38
4. SERIAL PORT OVERVIEW 38
4.1 Commands (Write Only) 39
4.1.1 Start Conversions 39
4.1.2 SYNC0 Command 39
4.1.3 SYNC1 Command 39
4.1.4 Power-Up/Halt 39
4.1.5 Power-Down 40
4.1.6 Calibration 40
4.1.7 Register Read/Write 41
4.2 Serial Port Interface 42
4.3 Serial Read and Write 42
4.3.1 Register Write 42
4.3.2 Register Read 42
4.4 System Initialization 42
4.6 CS5460A Power States 43
5. REGISTER DESCRIPTIONS 44
5.4 Cycle Count Register 46
5.9 Power Offset Register 48
5.12 Control Register 50
6. PIN DESCRIPTIONS 51
24L SSOP PACKAGE DRAWING 53
8. ORDERING INFORMATION 54
10. REVISION HISTORY 54

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Cirrus-logic CS5460A User Manual Page 20

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