CDB5467U Cirrus Logic Inc, CDB5467U Datasheet - Page 17

• Manufacturer Part Number: CDB5467U
• Description: BOARD EVAL FOR CS5467 ADC
• Manufacturer: Cirrus Logic Inc
• Type: A/Dr

Specifications of CDB5467U

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: CS5467
• Primary Attributes: Watt-Hour Meter
• Secondary Attributes: Graphical User Interface, SPI™ & USB Interfaces
• Product: Data Conversion Development Tools
• Maximum Clock Frequency: 4 MHz
• Interface Type: USB
• Supply Voltage (max): 5 V
• Supply Voltage (min): 3.3 V
• For Use With/related Products: CS5467
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1555; CDB-5467U

2.6.3
When these buttons are pressed, the CS5467 will enter either standby or sleep power saving modes. To
return to normal mode, press the Power Up button.
2.6.4
This button is used to send the Power Up/Halt command to the CS5467. The part will return to normal
operating mode and halt any conversions that are being done at this time.
2.6.5
If the AFC bit in the Mode register is set, the Epsilon register will be calculated automatically by the
CS5467 and the Line Frequency display field will be updated automatically in continuous conversion
mode. If the AFC bit in the Mode register is not set and the line frequency is other than the default value
(50Hz), to ensure the accuracy of the quadrature power (Q1, Q2) and the reactive power (Q1avg, and
Q2avg), the line frequency must be set manually here to make Epsilon be the ratio of line frequency to
the output word rate (OWR). Refer to the CS5467 datasheet for more details.
2.6.6
The Temperature Settings Window is used to adjust the temperature offset register (Toffset) and temper-
ature gain register (Tgain) to convert the temperature register (T) from a Celsius scale (°C) to a Fahrenheit
scale (°F) or vice versa and to improve temperature measurement accuracy. Refer to the CS5467 data
sheet for the details of the on-chip temperature sensor.
2.6.7
This window provides a means to write the conversion result data to a .txt text file for later analysis or
print out. The file path and name will be shown in Filename field. The Open File button is used to open a
new or existing .txt text file for data writing. Each time the Write Data button is pressed, the result data is
written into the file and the Number of Lines Written field value will be increased by 1.
2.6.8
In the CS5467, voltage 2 and temperature are multiplexed on one ADC channel. To initiate a temperature
measurement, write 1 to the Tmeas register while in continuous conversion mode. When the Tmeas reg-
ister returns to 0, the Temperature field should be updated with the data in the T (Temperature) register.
DS714DB1
Standby / Sleep Mode Buttons
Power Up Button
Set Line Frequency
Temperature Settings Window
Write Data to File Window
Temperature Measurement
CDB5467U
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