CDB5467U Cirrus Logic Inc, CDB5467U Datasheet - Page 18

• 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

2.7
The CS5467 features a pulse-rate energy output. The CDB5467U has the capability to demonstrate the
functionality of this output in the Pulse Rate Output Window. See Figure 11. The Pulse Rate Output Win-
dow can be accessed by pressing <F5>, or by pulling down the Menu menu, and selecting the Pulse Rate
Window item.
2.7.1
This field allows the user to select the length of time over which pulses will be collected after the Start
button is pressed. Because there is a time delay (2x N / OWR) from start conversion to pulse output, the
Integration Seconds field is normally set to a delay longer than the actual pulsing period.
2.7.2
This field allows the user to average a number of integration periods.
2.7.3
When the Start button is pressed, the CDB5467U will capture pulse rate data according to the values in
the Integration Seconds and Periods to Average fields. After each integration period, the Pulse Count,
Frequency, Average Freq., and Standard Deviation columns will be updated. The Average Frequency and
Standard Deviation columns will only be updated after all the integrations have been collected. The soft-
ware stops collecting data when the user presses the Stop button, or when the data collection is finished.
Due to speed limitations of the on-board microcontroller, some higher pulse rates cannot be accurately
collected.
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Pulse Rate Window
Integration Seconds
Periods To Average
Start Button
Figure 11. Pulse Rate Output Window
CDB5467U
DS714DB1