SA9102C Datasheet, PDF (4/12 Pages) Sames – SINGLE PHASE UNIDIRECTIONAL POWER/ENERGY METERING IC PULSE OUTPUT

SA9102C
PIN DESCRIPTION
Pin
Designation
20
GND
8
V
DD
14
V_SS
19
IVP
1
IIN
2
IIP
11
OSC1
10
OSC2
12
FOUT1
13
FOUT2
4
CVON
5
CVOP
6
CVIN
7
CVIP
15
CIIP
16
CIIN
17
CIOP
18
CION
3
VREF
9
NC
Description
Ground
Positive Supply Voltage
Negative Supply Voltage
Analog input for Voltage
Inputs for current sensor
Connections for crystal or ceramic resonator
(OSC1 = Input : OSC2 = Output)
First pulse rate output
Second pulse rate output
Connections for outer loop capacitor of
A/D converter (Voltage)
Connections for inner loop capacitor of
A/D converter (Voltage)
Connections for inner loop capacitor of
A/D converter (Current)
Connections for outer loop capacitor of
A/D converter (Current)
Connection for current setting resistor
Not connected
FUNCTIONAL DESCRIPTION
The SA9102C is a CMOS mixed signal Analog/Digital integrated circuit, which performs
power/energy calculations across a power range of 1000:1, to an overall accurancy of
better than Class 1.
The integrated circuit includes all the required functions for 1-phase power and energy
measurement, 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. The SA9102C generates pulses, the
frequency of which is proportional to the power consumption. Two frequency outputs'
(FOUT1 and FOUT2) are available, with a third frequency option available on request.
4/12
sames