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STPM32 Datasheet(PDF) 48 Page - STMicroelectronics

Part # STPM32
Description  ASSP for metering applications with up to four independent 24-bit 2nd order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA
PDF  121 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPM32 Datasheet(HTML) 48 Page - STMicroelectronics

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Theory of operation
STPM32, STPM33, STPM34
48/121
DS10272 Rev 8
8.4.6
Calculation of power and energy
In the following section, constant parameters, coming from the device architecture, are
used:
Table 13. STPM3x internal parameters
Parameter
Value
Voltage reference
VREF = 1.18 [V]
Decimation clock
DCLK = 7812.5 [Hz]
Integrator gain
(for Rogowski coil only)
kint = 1
If ROC bit = 0 in DSP_CR1,2
kint = 0.8155773
If ROC bit = 1 in DSP_CR1,2



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