Evaluation Board User Guide

UG-194

Rev. A | Page 3 of 20

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

(default)

Pin 1 of the Channel IA pin connector (P2) is left floating. Use this configuration in normal operation to drive IAP

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

(default)

Pin 1 of the Channel IB pin connector (P3) is left floating. Use this configuration in normal operation to drive IBP

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

(default)

Pin 2 of the Channel IA pin connector (P2) is left floating. Use this configuration when driving a differential input

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

(default)

Pin 2 of the Channel IB pin connector (P3) is left floating. Use this configuration when driving a differential input to

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

(default)

Enables the antialiasing filter (composed of R5 and C7) in the IAP signal path.

JP3B

Closed

Disables the antialiasing filter (composed of R7 and C9) in the IBP signal path.

Open

(default)

Enables the antialiasing filter (composed of R7 and C9) in the IBP signal path.

JP4A

Closed

Disables the antialiasing filter (composed of R6 and C8) in the IAN signal path.

Open

(default)

Enables the antialiasing filter (composed of R6 and C8) in the IAN signal path.

JP4B

Closed

Disables the antialiasing filter (composed of R8 and C10) in the IBN signal path.

Open

(default)

Enables the antialiasing filter (composed of R8 and C10) in the IBN signal path.

JP5A

Closed

(default)

Disables the antialiasing filter (composed of R9 and C11) in the IAP signal path.

Open

Enables the antialiasing filter (composed of R9 and C11) in the IAP signal path.