UG-194 Datasheet, PDF (3/20 Pages) Analog Devices – Evaluation Board for the ADE7953 Single Phase Energy Metering IC

Evaluation Board User Guide
UG-194
EVALUATION BOARD HARDWARE
OVERVIEW
The ADE7953 evaluation kit includes two boards that should be
used together to evaluate the silicon. The smaller board, named
ADE IO INTERFACE BOARD Z (the interface board), consists
of an NXP LPC2368FBD100 microcontroller that handles all
communications from the PC to the ADE7953 (see Figure 1).
The larger board, named EVAL-ADE7953EBZ (the evaluation
board), includes the ADE7953 energy metering IC, associated
filtering, and isolation to allow high voltage inputs to be used
(see Figure 2). The two boards should be connected together
using the 25-pin connector included in the evaluation kit. The
connector is labeled P2 on the interface board and P7 on the
evaluation board.
Full schematics of the ADE7953 evaluation board and interface
board are provided in the Evaluation Board Schematics section
and the Interface Board Schematics section.
POWERING UP THE EVALUATION BOARD
The ADE7953 interface board receives power via the USB
cable that is connected to the PC. No additional power source
is required for the interface board.
The ADE7953 evaluation board requires a 3.3 V power supply.
This power source supplies the nonisolated side of the circuit,
including the ADE7953 energy metering IC and associated
circuitry. The 3.3 V supply should be provided on P1. The
isolated portion of the evaluation board is powered by the
interface board connection.
JUMPER CONFIGURATION
Table 1 describes the jumpers included on the ADE7953 evalua-
tion board and the required settings for different configurations.
Before connecting any high voltage signals, users should review
the jumper configuration and verify that it is correct for their
specific setup.
Table 1. Jumper Configuration
Jumper Option Description
JP1A
Closed
Connects Pin 1 of the Channel IA pin connector (P2) to AGND. Use this configuration in conjunction with JP3A and
JP5A closed to short the IAP pin of the ADE7953 to AGND.
Open
Pin 1 of the Channel IA pin connector (P2) is left floating. Use this configuration in normal operation to drive IAP
(default) with analog signal.
JP1B
Closed Connects Pin 1 of the Channel IB pin connector (P3) to AGND. Use this configuration in conjunction with JP3B and
JP5B closed to short the IBP pin of the ADE7953 to AGND.
Open
Pin 1 of the Channel IB pin connector (P3) is left floating. Use this configuration in normal operation to drive IBP
(default) with analog signal.
JP2A
Closed
Connects Pin 2 of the Channel IA pin connector (P2) to AGND. Use this configuration in conjunction with JP4A
closed and JP6A open to short the IAN pin of the ADE7953 to AGND, which should be done when using a shunt
current sensor.
Open
Pin 2 of the Channel IA pin connector (P2) is left floating. Use this configuration when driving a differential input
(default) to IAN, which should be done when using a current transformer or Rogowski coil sensor.
JP2B
Closed Connects Pin 2 of the Channel IB pin connector (P3) to AGND. Use this configuration in conjunction with JP4B
closed and JP6B open to short the IBN pin of the ADE7953 to AGND, which should be done when using a shunt
current sensor.
Open
Pin 2 of the Channel IB pin connector (P3) is left floating. Use this configuration when driving a differential input to
(default) IBN, which should be done when using a current transformer or Rogowski coil sensor.
JP3A
Closed Disables the antialiasing filter (composed of R5 and C7) in the IAP signal path.
Open
Enables the antialiasing filter (composed of R5 and C7) in the IAP signal path.
(default)
JP3B
Closed Disables the antialiasing filter (composed of R7 and C9) in the IBP signal path.
Open
Enables the antialiasing filter (composed of R7 and C9) in the IBP signal path.
(default)
JP4A
Closed Disables the antialiasing filter (composed of R6 and C8) in the IAN signal path.
Open
Enables the antialiasing filter (composed of R6 and C8) in the IAN signal path.
(default)
JP4B
Closed Disables the antialiasing filter (composed of R8 and C10) in the IBN signal path.
Open
Enables the antialiasing filter (composed of R8 and C10) in the IBN signal path.
(default)
JP5A
Closed Disables the antialiasing filter (composed of R9 and C11) in the IAP signal path.
(default)
Open
Enables the antialiasing filter (composed of R9 and C11) in the IAP signal path.
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