SA9102F/SA9102H

4/14

sames

PIN DESCRIPTION

Pin

Designation

Description

20

GND

Ground

8

V

DD

Positive Supply Voltage

14

V

SS

Negative Supply Voltage

19

IVP

Analog input for Voltage

1

IIN

Inputs for current sensor

2

IIP

11

OSC1

Connections for crystal or ceramic resonator

10

OSC2

(OSC1 = Input ; OSC2 = Output)

12

FOUT

Pulse rate output

13

DIR

Direction indication output

4

CPON

Connections for outer loop capacitor of

5

CPOP

A/D converter (Voltage)

6

CPIN

Connections for inner loop capacitor of

7

CPIP

A/D converter (Voltage)

15

CIP

Connections for inner loop capacitor of

16

CIN

A/D converter (Current)

17

COP

Connections for outer loop capacitor of

18

CON

A/D converter (Current)

3

VREF

Connection for current setting resistor

9

TP9

Test Pin. Connect to V

SS

FUNCTIONAL DESCRIPTION

The SA9102F/SA9102H are CMOS mixed signal Analog/Digital integrated circuits, which

perform bidirectional power/energy calculations across a power range of 1000:1, to an

overall accurancy of better than Class 1.

These integrated circuits includes all the required functions such as two oversampling

A/D converters for the voltage and current sense inputs, power calculation and energy

integration. Internal offsets are eliminated through the use of cancellation procedures.

These devices generate pulses, the frequency of which is proportional to the power

consumption. The pulse rate follows the instataneous power measured. Direction

information is also provided.