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db09284e_V3.01_preliminary_2017-07-06

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AS89020

V3.01

Activate or Deactivate Power Down Mode within the Measurement State

Within the measurement state the Power Down mode can be activated and subsequently deactivated by

the following frames.

Activate Power Down Mode:

S

WA

WD

X

SDI

S

00h 40h

X

SDO

S

XXXXh

X

Deactivate Power Down Mode and start Tracking within the Measurement State:

Figure 10: Example of Switching from Measurement State to Configuration State

S

WA

WD

X

SDI

S

00h 80h

X

SDO

S

XXXXh

X

If a new configuration should be set, the device has to change its state back to configuration by writing

,010b’ into the three lowest bits of OSR:DOS (see Table 8). During this action all control registers (except

OSR itself) will reset to their default values. A new configuration cycle can be started now.

S

WA

WD

X

SDI

S

00h 02h

X

SDO

S

XXXXh

X

8 PACKAGE

8.1 Shape & Dimensions

Figure 11: Shape for Package

Table 15: Dimensions for Package (Dimensions are given in Inches, BSC = Basic Spacing between Centers)

TYP

PACKAGE

A

A1

B

C

D

E

e

H

h

L

a°

AS89020

SSOP20

JEDEC

MO-137

0.060

–

0.068

0.004

–

0.008

0.009

–

0.012

0.007

–

0.010

0.337

–

0.344

0.150

–

0.157

0.025

BSC

0.230

–

0.244

0.010

–

0.016

0.016

0°

–

8°

1

D

B

e

SEATING PLANE

L

a°

h x 45°

NOTES:

1. LEAD WIDTH AND LEAD THICKNESS

EXCLUSIVE OF SOLDER PLATE

2. PACKAGE OUTLINE EXCLUSIVE OF MOLD

FLASHES AND BURR DIMENSIONS

3. ALLOWABLE MOLD FLASH IS 5 MILS PER

SIDE

4. LEAD COPLANARITY IS 0.003 INCH MAX