MAX71020AEUI(2012) Просмотр технического описания (PDF) - Maxim Integrated

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MAX71020AEUI
(Rev.:2012)

Single-Chip Electricity Meter AFE

Maxim Integrated 

MAX71020

Single-Chip Electricity Meter AFE

RECOMMENDED EXTERNAL COMPONENTS

NAME

C1

CSYS

C1P8

XTAL

CXS

CXL

FROM

V3P3A

V3P3SYS

VDD

XIN

XIN

XOUT

TO

GNDA

GNDD

GNDD

XOUT

GNDA

GNDA

FUNCTION

Bypass capacitor for 3.3V supply

Bypass capacitor for V3P3SYS

Bypass capacitor for V1P8 regulator

At cut crystal specified for 18pF load

Load capacitor values for crystal depend on

crystal specifications and board parasitics.

Nominal values are based on 4pF board

capacitance and include an allowance for

chip capacitance.

VALUE

R 0.1 ±20%

R 1.0 ±30%

0.1 ±20%

9.8304

32 ±10%

32 ±10%

UNITS

µF

µF

µF

MHz

pF

pF

TOP VIEW

VA 1

+

GNDA 2

V3P3A 3

IBN 4

IBP 5

IAN 6

IAP 7

TEST 8

RESETZ 9

VPP 10

DIO3 / YPULSE 11

GNDD 12

SPI_CSZ 13

SPI_DO 14

MAX71020

TSSOP

Pin Configuration

28 VB

27 TEST0

26 XOUT

25 XIN

24 V3P3SYS

23 VDD

22 DIO0/WPULSE

21 DIO1/VPULSE

20 DIO2/XPULSE

19 INTZ

18 N.C.

17 N.C.

16 SPI_CLK

15 SPI_DI

  6

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