CS5464-ISZ Cirrus Logic Inc, CS5464-ISZ Datasheet - Page 41

• Manufacturer Part Number: CS5464-ISZ
• Description: IC ENERGY METERING 1PHASE 28SSOP
• Manufacturer: Cirrus Logic Inc

Specifications of CS5464-ISZ

• Package / Case: 28-SSOP
• Input Impedance: 30 KOhm
• Measurement Error: 0.1%
• Voltage - I/o High: 0.8V
• Voltage - I/o Low: 0.2V
• Current - Supply: 3.5mA
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Meter Type: Single Phase
• Output Voltage Range: 2.4 V to 2.6 V
• Input Voltage Range: 2.4 V to 2.6 V
• Input Current: 100 nA
• Power Dissipation: 500 mW
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Input Voltage: 5V
• No. Of Outputs: 3
• Power Dissipation Pd: 500mW
• Supply Voltage Range: 3.3V To 5V
• No. Of Pins: 28
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1554 - BOARD EVAL FOR CS5464 ADC
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1194-5

10.E
The CS5464 can accept commands from a serial
E
host microcontroller. A high level (logic 1) on the MODE
input indicates that an E
makes the CS and SCLK pins become driven outputs.
After reset and after running the initialization program,
the CS5464 begins reading commands from the con-
nected E
10.1 E
A typical connection between the CS5464 and a
E
The CS5464 asserts CS (logic 0), clocks SCLK, and
sends Read commands to the E
Command format is identical to microcontroller mode,
except the CS5464 will not attempt to write to the EE de-
vice. The command sequence stops when the STOP bit
in the Control register ( Ctrl ) is written by the command
sequence.
Figure 13
would be made to a calibration device, such as a note-
book computer, handheld calibrator, or tester during
meter assembly, The calibrator or tester can be used to
control the CS5464 during calibration and program the
required values into the E
DS682F1
Figure 13. Typical Interface of E
2
2
5 K
PROM connected to the serial interface instead of a
PROM is shown in
VD
+
2
PROM OPERATION
2
2
MODE
PROM Configuration
PROM.
CS5464
also shows the external connections that
SCLK
SDO
SDI
CS
E1
E2
Connector to Calibrator
Figure
2
2
PROM.
PROM is connected. This
13.
Pulse Output
5 K
Counter
2
PROM on SDO.
2
PROM to CS5464
SO
SI
SCK
CS
EEPROM
10.2 E
The EEPROM code should do the following:
1. Set any Configuration or Control register bits, such as
2. Write any calibration data to gain and offset registers.
3. Set energy output pulse width, rate, and formats.
4. Execute a Continuous Conversion command.
5. Set the STOP bit in the Control register (last).
Below is an example E
10.3 Which E
Several industry-standard serial E
with the CS5464. Some are listed below:
•
•
•
These serial E
mand (00000011) in order to perform a memory read.
The CS5464 has been hardware programmed to trans-
mit this 8-bit command to the E
HPF enables and phase compensation settings.
- 7E 00 00 01
- 60 00 01 E0
- 42 7F C4 A9
- 46 FF B2 53
- 50 7F C4 A9
- 54 FF B2 53
- 7E 00 00 00
- 74 00 00 04
- E8
- 78 00 01 00
Atmel AT25010, AT25020 or AT25040
National Semiconductor NM25C040M8 or NM25020M8
Xicor X25040SI
Change to page 1.
Write Modes Register, turn high-pass filters on.
Write value of 0x7FC4A9 to I1
Write value of 0xFFB253 to V1
Write value of 0x7FC4A9 to I2
Write value of 0xFFB253 to V2
Change to page 0.
Set LSD bit to 1 in the Mask register.
Start continuous conversions
Write STOP bit to the Control register ( Ctrl ) to
terminate E
2
PROM Code
2
PROMs expect a specific 8-bit com-
2
2
PROM command sequence.
PROMs Can Be Used?
2
PROM code set.
2
PROM after reset.
2
PROMs can be used
GAIN
GAIN
GAIN
GAIN
register.
register.
register.
register.
CS5464
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