SL900A datasheet(55/90 Pages) AMSCO

Part #	SL900A

Description	EPC Class 3 Sensory Tag Chip - For Automatic Data Logging

PDF	90 Pages

Scroll/Zoom	100%

Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

Logo

55 / 90 page

ams Datasheet: 2014-May-06 [v1-01]

SL900A – 55

Ex t e rnal Sensor Fr ont - End (SFE)

The external sensor interface has an auxiliary output pin (EXC)

that can be used for supplying the external sensor either with

a constant voltage or with an AC voltage signal (for capacitive

sensor).

Figure 45:

EXC Output Pin Operation

EXC Pin Controls

EXT1 [1:0]

sw_ext_en

stand-by mode

EXC Signal Output

Comment

HI-Z

The output drivers are

disconnected

HI-Z

The output drivers are

disconnected

AC signal during external

sensor conversion

Is to be used only with

capacitive sensors

VBAT

The output is connected to

the battery voltage for the

duration of the conversion

HI-Z

The output drivers are

disconnected

VBAT

The output is connected to

the battery voltage for the

duration of the conversion

HI-Z

The output drivers are

disconnected

SL900A Datasheet(PDF) 55 Page - ams AG