CDB5460AU Cirrus Logic Inc, CDB5460AU Datasheet - Page 5

• Manufacturer Part Number: CDB5460AU
• Description: EVALUATION BOARD FOR CS5460A
• Manufacturer: Cirrus Logic Inc

Specifications of CDB5460AU

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: CS5460A
• Primary Attributes: 1-Phase Current & Voltage Monitoring
• Secondary Attributes: Graphical User Interface, SPI™ & USB Interfaces
• Processor To Be Evaluated: CS5460A, C8051F320
• Interface Type: USB
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

are connected to analog ground (AGND). With a jumper on J17, J22, J24, and J26 in position VREF, the inputs are
connected to the reference voltage selected on J12.
1.4
The digital section contains the microcontroller, USB interface, JTAG header, reset circuitry, and an ex-
ternal interface header (J40). The microcontroller interfaces the SPI™ of CS5460A with the USB connec-
tion to the PC, enabling GUI software to access all the CS5460A registers and functions. Interface header,
J40, is provided to allow the CDB5460AU to be connected to an external energy registration device or an
external microcontroller. To connect the CS5460A to an external microcontroller, R57, R58, R59, R60,
R61, and R62 must be removed from the board. The energy output pins EOUT, EDIR are routed to LEDs
(E1, E2) which provide a simple visual check of the energy output pulses. Mode pin is also routed to a
LED to indicate whether the CS5460A is at auto-boot mode. Jumpers J10, J13, J15, and J16 are equipped
at the factory with jumpers to enable the LEDs.
1.5
Table 4
plies the positive analog (VA+) for the CS5460A and the on-board +2.5V reference. The VD+_EXT bind-
ing post (J5) supplies the digital section of the CS5460A (VD+) and level shifters. Jumper J8 allows the
VD+ supply to be sourced from the VD+_EXT binding post (J5), the +5V binding post (J3), or the regulated
3.3V supply derived from the microcontroller. The Vu+_EXT (J6) binding post supplies the positive supply
DS487DBU1
VIN± or IIN±
VIN± or IIN±
VREFIN
INPUT
Digital Section
Power Supply Section
illustrates the power supply connections to the evaluation board. The +5V binding post (J3) sup-
GND
Selects Grounding
Selects Reference
Selects External
Selects External
Description
Table 3. Voltage and Current Channel Input Signal Selection
the Input
Source
Signal
Signal
VREF
VREF
VREF
VREF
GND
GND
GND
GND
VIN+
VIN+
VIN+
VIN+
O
O
(Default)
O
O
O
O
O
O
J17
O
O
O
O
O
O
O
O
O
O
O
O
VIN+
VIN+
VIN+
VIN+
VIN+
VIN+
VIN+
VIN+
VIN+
VIN+
VIN+
VIN+
VIN-
VREF
VIN-
VREF
VIN-
VREF
VIN-
VREF
GND
GND
GND
GND
O
O
(Default)
O
O
O
O
O
O
J22
O
O
O
O
O
O
O
O
O
O
O
O
VIN-
VIN-
VIN-
VIN-
VIN-
VIN-
VIN-
VIN-
VIN-
VIN-
VIN-
VIN-
VREF
VREF
VREF
VREF
IIN+
IIN+
IIN+
IIN+
GND
GND
GND
GND
O
O
(Default)
O
O
O
O
O
O
J24
O
O
O
O
O
O
O
O
O
O
O
O
IIN+
IIN+
IIN+
IIN+
IIN+
IIN+
IIN+
IIN+
IIN+
IIN+
IIN+
IIN+
CDB5460AU
VREF
VREF
VREF
VREF
IIN-
IIN-
IIN-
IIN-
GND
GND
GND
GND
O
O
(Default)
O
O
O
O
O
O
J26
O
O
O
O
O
O
O
O
O
O
O
O
IIN-
IIN-
IIN-
IIN-
IIN-
IIN-
IIN-
IIN-
IIN-
IIN-
IIN-
IIN-
5