AS3955-ASWF-S2 datasheet(10/111 Pages) AMSCO

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[v1-01] 2015-Apr-29

AS3955 − Electrical Characteristics

Figure 9:

CMOS Outputs

Note(s) and/or Footnote(s):Valid for output pins MISO and IRQ

1. Pull down can be enabled while MISO output is in tristate. The activation is controlled by register setting.

Electrical Specifications

Figure 10:

Electrical Specifications

Note(s) and/or Footnote(s):VP_IO=1.8V, Temperature 25°C unless noted otherwise

1. ILC is the current flowing through LC1 and LC2 pins

2. Internal supply current measured over VP_IO pin, by forcing internal digital supply to 2.0V, and applying 13.56 MHz alternative

pulses with amplitude 3.0Vpp to LC1 and LC2.

3. 1.6V is set in Power Mode 2 only.

4. See Figure 11.

5. See Figure 12.

Symbol

Parameter

Min

Typ

Max

Unit

Note

VOH

High level output voltage

0.85 *

VDD_IO

Isource=1mA

VP_IO = 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

100

VLIM

Limiter Voltage

5.2

5.5

ILC=30mA (DC)

(1)

Supply current

350

μA

see note (2)

VHF_PON

HF_PON threshold

(rising VREG)

1.6

2.3

Vsee note (3)

VPOR_HY

HF_PON hysteresis

0.8

VMOD

Modulator ON voltage drop

1.2

2.6

ILC=1mA

(1)

ILC=30mA

(1)

CRES

Resonance Capacitor

EEEN

EEPROM endurance

100 000

cycles

@ 125°C (4)

EERET

EEPROM retention

years

@ 125°C (5)

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