SA9102F/SA9102H
PIN DESCRIPTION
Pin
Designation
Description
20
8
GND
VDD
Ground
Positive Supply Voltage
14
19
1
VSS
Negative Supply Voltage
Analog input for Voltage
Inputs for current sensor
IVP
IIN
2
IIP
11
10
12
13
4
OSC1
OSC2
FOUT
DIR
Connections for crystal or ceramic resonator
(OSC1 = Input ; OSC2 = Output)
Pulse rate output
Direction indication output
CPON
CPOP
CPIN
CPIP
CIP
Connections for outer loop capacitor of
A/D converter (Voltage)
5
6
Connections for inner loop capacitor of
A/D converter (Voltage)
7
15
16
17
18
3
Connections for inner loop capacitor of
A/D converter (Current)
CIN
COP
CON
VREF
TP9
Connections for outer loop capacitor of
A/D converter (Current)
Connection for current setting resistor
Test Pin. Connect to VSS
9
FUNCTIONAL DESCRIPTION
TheSA9102F/SA9102HareCMOSmixedsignalAnalog/Digitalintegratedcircuits,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.
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SAMES [ SAMES ]
