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Data Sheet

ADE7978/ADE7933/ADE7932/ADE7923

Rev. D | Page 23 of 125

Pin No.

Mnemonic

Description

V2/TEMP

This input pin selects the signal that is converted at the second voltage channel of the ADE7933. (In the

ADE7932, the temperature sensor is always converted by the second voltage channel.) When this pin is high,

the voltage input V2P is sensed; when this pin is low, the temperature sensor is measured. The V2/TEMP pin is

also used during the ADE7933/ADE7932 reset procedure. For both the ADE7933 and ADE7932, the V2/TEMP

pin must always be connected to one of the following pins on the ADE7978: VT_A, VT_B, VT_C, or VT_N.

Connect the V2/TEMP pin of the Phase A ADE7933/ADE7932 to the VT_A pin of the ADE7978, and so on. For

more information, see the Second Voltage Channel and Temperature Measurement section.

EMI_CTRL

Emissions Control Pin. This pin manages the emissions of the ADE7933/ADE7932. When the pin is connected to

GND, the PWM control block of the dc-to-dc converter generates pulses during Slot 0, Slot 2, Slot 4, and Slot 6.

When the pin is connected to VDD, the PWM control block of the dc-to-dc converter generates pulses during

Slot 1, Slot 3, Slot 5, and Slot 7. (For more information, see the DC-to-DC Converter section.) Do not leave this

pin floating.

VDD

Primary Supply Voltage. This pin provides the supply voltage for the ADE7933/ADE7932. For specified operation,

maintain the supply voltage at 3.3 V ± 10%. Decouple this pin to GND with a 10 µF capacitor in parallel with a

ceramic 100 nF capacitor.

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