Datasheet

MAX71020
Single-Chip Electricity Meter AFE
9Maxim Integrated
Functional Diagram
MAX71020
DC
MODULATOR
FIR
DECIMATOR
PREAMPLIFIER
INPUT
MULTIPLEXER
START
IAP
GNDA V
3P3A
IAN
VOLTAGE
REGULATOR
V
DD
IBP
IBN
VB
VA
CKCE
20MHz, 5MHz
MUX_SYNC
XIN
XOUT
MCK
MULTIPLEXER
CONTROL
VREF
CRYSTAL
OSCILLATOR
9.83MHz
MASTER
CLOCK
PLL
V
REF
CLOCK
GENERATOR
TEMP
SENSE
VREF
POWER
STATUS
CE
32-BIT
COMPUTE
ENGINE
VSTAT
RESETZ
V3P3A
2
CKADC (2.5MHz)
GNDD
V
3P3SYS
SPI
INTZ
SPI_CSZ
PARITY
ERR
SPI_DI
SPI_DO
SPI_CLK
WPULSE D10_WPULSE
INTZ
D11_VPULSE
D12_XPULSE
D13_YPULSE
XFER_BUSY
VSTAT
2
VPULSE
XPULSE
YPULSE
1.8V TO
LOGIC
PULSE
CONTROL
IO_CTRL