AS3956 datasheet(11/107 Pages) AMSCO

номер детали	AS3956

подробное описание детали	NFC Forum Compliant Dynamic Tag

PDF	107 Pages

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производитель	AMSCO [ams AG]

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11 / 107 page

ams Datasheet

Page 11

[v1-11] 2018-Nov-14

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AS3956 − Electrical Characteristics

Figure 9:

CMOS Outputs MISO and IRQ

Note(s):

1. Pull down can be enabled while MISO output is in tristate when /SS is high. The activation is controlled by register setting miso_pd1.

Electrical Specifications

Figure 10:

Electrical Specifications (temperature 25°C unless noted otherwise)

Symbol

Parameter

Min

Typ

Max

Unit

Note

VOH

High level output voltage

0.85 * VDD_IO

Isource=1mA

VP_IO = 5.5V

VOL

Low level output voltage

0.15 * VDD_IO

Output resistance

200

400

RPD

Pull-down resistance pad MISO

kΩ

See note (1)

Symbol

Parameter

Min

Typ

Max

Unit

Note

ISB_SPI

Stand by consumption on VP_IO

μA

@ 25°C

(RF field not applied)

VP_IO=1.8V

VLIM

Limiter voltage

5.5

6.0

ILC=30mA (DC)

(1)

Supply current

450

μA

See note (2)

VHF_PON

HF_PON threshold

(rising VP_INT) power modes 0,3

2.7

Rectified RF supply

voltage

VPON_HY

HF_PON hysteresis

0.5

VMOD

Modulator ON voltage drop

across LC1 - LC2

1.3

2.6

ILC=1mA

(1)

ILC=30mA

(1)

VP_IO=3.3V

CRES

Resonance capacitor

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