L9935

Functional description

Doc ID 5198 Rev 10

25/29

5.17

Electromagnetic emission classification (EME)

Electromagnetic emission classes presented below are typical data found on bench test. For

detailed test description please refer to ’Electromagnetic Emission (EME) Measurement of

Integrated Circuits, DC to 1GHz’ of VDE/ZVEI work group 767.13 and VDE/ZVEI work group

767.14 or IEC project number 47A 1967Ed. This data is targeted to board designers to allow

an estimation of emission filtering effort required in application.

Electromagnetic emission is not tested in production.

Figure 13.

State diagram

Remark:

Return to standby is possible from every state

Note:

Reversing polarity in low current mode no flyback check will be performed.

Table 12.

Electromagnetic emission

Pin

EME class

Remark

GND

E

10

0

1

 test

VCC

E

-

e

Blocked with 100nF close in to the device

EN. SDI, CSN, CSK, SDO in

tristate

K

-

h

-

SDO

G

-

f

SDO in low-Z state, no data transfer

Power output A1, A2, B1, B2

E

5

f

Sourcing output

Power output A1, A2, B1, B2

-6

f

Sinking output in chopping mode

fosc = 20 kHz