Cirrus-logic CS5463 User Manual Page 9
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CS5463
DS678F3 9
VOLTAGE REFERENCE
Notes: 8. The voltage at VREFOUT is measured across the temperature range. From these measurements the
following formula is used to calculate the VREFOUT Temperature Coefficient:.
9. Specified at maximum recommended output of 1 µA, source or sink.
DIGITAL CHARACTERISTICS
• Min / Max characteristics and specifications are guaranteed over all Recommended Operating Conditions.
• Typical characteristics and specifications are measured at nominal supply voltages and TA = 25 °C.
• VA+ = VD+ = 5V ±5%; AGND = DGND = 0 V. All voltages with respect to 0 V.
• MCLK = 4.096 MHz.
Parameter Symbol Min Typ Max Unit
Reference Output
Output Voltage VREFOUT +2.4 +2.5 +2.6 V
Temperature Coefficient (Note 8) TC
VREF
- 25 60 ppm/°C
Load Regulation (Note 9) V
R
-610mV
Reference Input
Input Voltage Range VREFIN +2.4 +2.5 +2.6 V
Input Capacitance - 4 - pF
Input CVF Current - 25 - nA
Parameter Symbol Min Typ Max Unit
Master Clock Characteristics
Master Clock Frequency Internal Gate Oscillator (Note 11) MCLK 2.5 4.096 20 MHz
Master Clock Duty Cycle 40 - 60 %
CPUCLK Duty Cycle (Note 12 and 13) 40 - 60 %
Filter Characteristics
Phase Compensation Range (Voltage Channel, 60 Hz) -2.8 - +2.8 °
Input Sampling Rate DCLK = MCLK/K - DCLK/8 - Hz
Digital Filter Output Word Rate (Both Channels) OWR - DCLK/1024 - Hz
High-pass Filter Corner Frequency -3 dB - 0.5 - Hz
Full-scale DC Calibration Range (
Referred to Input) (Note 14) FSCR 25 - 100 %F.S.
Channel-to-channel Time-shift Error (Note 15) 1.0 µs
Input/Output Characteristics
High-level Input Voltage
All Pins Except XIN and SCLK and RESET
XIN
SCLK and RESET
V
IH
0.6 VD+
(VD+) - 0.5
0.8VD+
-
-
-
-
-
-
V
V
V
Low-level Input Voltage (VD = 5 V)
All Pins Except XIN and SCLK and RESET
XIN
SCLK and RESET
V
IL
-
-
-
-
-
-
0.8
1.5
0.2VD+
V
V
V
(VREFOUTMAX - VREFOUTMIN)
VREFOUT
AVG
(
(
1
T
A
MAX
- T
A
MIN
(
(
1.0 x 10
(
(
6
TC
VREF
=
- Features 1
- Description 1
- TABLE OF CONTENTS 2
- DS678F3 3 3
- LIST OF FIGURES 4
- LIST OF TABLES 4
- 1. OVERVIEW 5
- 2. PIN DESCRIPTION 6
- ANALOG CHARACTERISTICS 7
- VOLTAGE REFERENCE 9
- DIGITAL CHARACTERISTICS 9
- SWITCHING CHARACTERISTICS 11
- 12 DS678F3 12
- ABSOLUTE MAXIMUM RATINGS 13
- 4. THEORY OF OPERATION 14
- 4.4 Linearity Performance 15
- 5. FUNCTIONAL DESCRIPTION 16
- 60 Hz 4000 Hz 0.015== 17
- 50 Hz 4000 Hz 0.0125== 17
- 5.5.2 Apparent Energy Mode 18
- 5.5.3 Reactive Energy Mode 18
- 5.5.5 PFMON Output Mode 19
- 5.5.6 Design Example 19
- 5.7 No Load Threshold 19
- 5.9 Voltage Reference 20
- 5.10 System Initialization 20
- 5.11 Power-down States 20
- 5.13 Event Handler 21
- 5.14 Serial Port Overview 21
- 5.14.1 Serial Port Interface 21
- 5.15 Register Paging 22
- 5.16 Commands 23
- 2 00010 I 24
- 4 00100 V 24
- 15 01111 Status Status 24
- 17 10001 V 24
- 18 10010 Mode Operation Mode 24
- 5.16.6 Calibration 25
- 6. REGISTER DESCRIPTION 26
- Active 28
- ); 17 (Voltage AC Offset) 30
- Registers (V 30
- 32 DS678F3 32
- Power Measurements 32
- DS678F3 33 33
- 1.0, with 33
- (read only) 34
- 6.1.24 Page Register 34
- 6.2 Page 1 Registers 35
- 6.3 Page 3 Registers 36
- 7. SYSTEM CALIBRATION 37
- Reference 38
- DS678F3 39 39
- Operational Mode Register 39
- 8.1 degrees when the input 39
- 8. AUTO-BOOT MODE USING E 40
- 9. BASIC APPLICATION CIRCUITS 41
- 42 DS678F3 42
- DS678F3 43 43
- 24L SSOP PACKAGE DRAWING 44
- 11. ORDERING INFORMATION 45
- 13. REVISION HISTORY 46
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