MAXQ3181 Maxim, MAXQ3181 Datasheet - Page 11

• Manufacturer Part Number: MAXQ3181
• Description: The MAXQ3181 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, active power and energy, and many other metering parameters of a polyphase load
• Manufacturer: Maxim

VCOMM
RESET
VREF
V0P
V1P
V2P
INP
I0N
I1N
I2N
I0P
I1P
I2P
VN
Low-Power, Active Energy, Polyphase AFE
SENSE
TEMP
______________________________________________________________________________________
48-BIT ACCUMULATE
HW MULTIPLY
16 x 16
MAXQ3181
COMMUNICATIONS
METERING DSP,
ADC CONTROL,
ELECTRICITY
BROWNOUT
MANAGER
MONITOR
POR/
ADC
ADCCLK
SYSCLK
WATCHDOG
TIMER
REF
ADC CLOCK
PRESCALER
COUNTERS
REGISTERS
REGISTERS
REGISTERS
CFP, CFQ
SPI
I/O
I/O
I/O
Block Diagram
BUFFERS
BUFFERS
BUFFERS
OSC/8
HF RC
XTAL
OSC
I/O
I/O
I/O
HF
CFP
MISO
MOSI
SCLK
SSEL
IRQ
XTAL1
XTAL2
11