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STPM32 Datasheet(PDF) 9 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) 9 Page - STMicroelectronics

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DS10272 Rev 8
9/121
STPM32, STPM33, STPM34
Schematic diagram
121
1
Schematic diagram
Figure 1. STPM34 block diagram
IIP1
IIN1
VIP1
VIN1
2
order
ΣΔ
modulator
PLNA
IIP2
IIN2
PLNA
Decimation
Decimation
Decimation
Phase
compensation
SPI/UART
SCS
MISO/
TXD
MOSI/
RXD
SCL
SYN
OSC 16 MHz
XTAL1 XTAL2
INT2
INT1
LED2
CLKOUT/
ZCR
EN
LED1
VIP2
VIN2
2
order
ΣΔ
modulator
Decimation
Filters
DSP
VCC
VDDA
VREF1
LDR 3.0 V
VOLTAGE
REFERENCE
VRefC1
VRefV1
VREF2
VOLTAGE
REFERENCE
LDR 1.2 V
VDDD
VRefC2
VRefV2
2
order
ΣΔ
modulator
2
order
ΣΔ
modulator
Phase
compensation
Phase
compensation
Phase
compensation
nd
nd
nd
nd
GIPG1303141224LM



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