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STPM32 Datasheet(PDF) 2 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  89 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPM32 Datasheet(HTML) 2 Page - STMicroelectronics

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1
Schematic diagram
Figure 1. STPM34 block diagram
IIP1
IIN1
VIP1
VIN1
2nd ordΣΔ
modulator
2nd ordΣΔ
modulator
PLNA
IIP2
IIN2
2nd ordΣΔ
modulator
PLNA
Decimation
Decimation
Decimation
Phase
Compensation
Phase
Compensation
Phase
Compensation
SPI/UART
SCS MISO/
TXD
MOSI/
RXD
SCL SYN
OSC 16MHz
XTAL1XTAL2
INT2
INT1
LED2
CLKOUT/
ZCR
EN
LED1
VIP2
VIN2
2nd ordΣΔ
modulator
Decimation
Phase
Compensation
Filters
DSP
VCC
VDDA
VREF1
LDR 3.0V
VOLTAGE
REFERENCE
VRefC1
VRefV1
VREF2
VOLTAGE
REFERENCE
LDR 1.2V
VDDD
VrefC2
VRefV2
STPM32, STPM33, STPM34
Schematic diagram
DS10272 - Rev 13
page 2/89



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