CDB5463U Cirrus Logic Inc, CDB5463U Datasheet - Page 4

• Manufacturer Part Number: CDB5463U
• Description: BOARD EVAL & SOFTWARE CS5463 ADC
• Manufacturer: Cirrus Logic Inc
• Type: A/Dr

Specifications of CDB5463U

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: CS5463
• Primary Attributes: 1-Phase, Energy-to-Frequency Output
• Secondary Attributes: GUI, USB, SPI 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: CS5463
• 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: 598-1553

1.3
The CDB5463U evaluation board provides screw-type terminals (J23, J27) to connect input signals to the
voltage and current channels. The screw terminals are labels as VIN+, VIN1-, IIN+, and IIN-. A simple
R-C network at each channel input provides a simple anti-alias filter.
The evaluation board provides three voltage reference options for VREFIN to the CS5463. The three volt-
age reference options include: VREFOUT from CS5463, the on-board +2.5V reference, and external
REF+ (screw terminal J14).
on J25 in the position labeled VREFOUT, the reference is supplied by the on-chip voltage reference. With
a jumper on J25 in the position labeled VREF, the reference is supplied by an off-chip voltage reference.
Table 2
provides a +2.5V reference (the LT1019 was chosen for its low drift - typically 5 ppm/°C). By setting the
jumper on J12 to position REF+, an external voltage reference is supplied via screw terminal J14's REF+
input.
The three input signal options for the voltage (VIN±) and current (IIN±) channel input include: an external
signal (screw terminals J23 and J27), GND, or VREF. Table3 illustrates the options available. By installing
jumpers on J17 to position VIN+, J22 to position VIN-, J24 to position IIN+, and J26 to position IIN-, the
input voltage signal is supplied from the screw terminals J23 and J27. With a jumper on J17, J22, J24 and
4
Analog Section
illustrates the options available for VREF. With a jumper on J12 in position LT1019, the LT1019
Table 2. External Voltage Reference Selection for VREF
Table 1. Internal Voltage Reference Selection for VREF
Table 1
Reference
Reference
VREFOUT
LT1019
REF+
VREF
and
Table 2
LT1019 Reference
Reference Source
Selects On-board
Selects External
LT1019 Reference(J12)
Reference (25 ppm/
Description
(5 ppm/
Selects External or
Selects On-chip
(J14)
Description
illustrate the options available for VREFIN. With a jumper
°
C)
LT1019
LT1019
°
REF+
REF+
C)
O
O
(Default)
J12
VREFOUT
VREFOUT
VREFIN
VREFIN
(Default)
O
O
O
O
J25
VREF
VREF
VREF
VREF
VREF
VREF
O
O
O
O
CDB5463U
DS805DB2