TDA8020 datasheet(13/24 Pages) PHILIPS

13 / 24 page

2001 Aug 15

Philips Semiconductors

Product speciﬁcation

Dual smart card interface

TDA8020HL

THERMAL CHARACTERISTICS

CHARACTERISTICS

VDD = 3.3 V; VDDI = 1.5 V; fCLKIN1 =fCLKIN2 = 10 MHz; GND = 0 V; Tamb =25 °C; unless otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

VALUE

UNIT

Rth(j-a)

thermal resistance from junction to ambient

in free air

K/W

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Temperature

Tamb

ambient temperature

−25

−

+85

°C

Supply

VDD

supply voltage on pins VDD

and VDDA

2.5

−

6.5

IDD

supply current (IDD and IDDA) inactive mode

−−

150

µA

Power-down mode; 2 cards

activated; VCC1 =VCC2 =5V;

ICC1 =ICC2 = 100 µA; CLK1 and

CLK2 stopped

−−

2.5

active mode; VCC1 =VCC2 =5V;

ICC1 +ICC2 = 80 mA;

CLK1 = CLK2 = 5 MHz

−−

400

active mode; VCC1 =VCC2 =3V;

ICC1 =ICC2 = 10 mA;

CLK1 = CLK2 = 5 MHz

−−

VDDI

supply voltage for interface

signals

1.5

−

VDD

IDDI

supply current for interface

signals

−−

120

µA

Vth1

threshold voltage on VDD

falling

2.1

−

2.4

Vhys1

hysteresis on Vth1

−

100

Vth2

threshold voltage on

pin CDEL

−

1.38

−

VCDEL

voltage on pin CDEL

−−

VDD + 0.3

ICDEL

output current at pin CDEL

pin grounded (charge)

−−2

−µA

VCDEL =VDD (discharge)

−

width of the internal ALARM

pulse

CDEL =22nF

−

DC/DC converter

fint

internal oscillator frequency

2.5

MHz

VUP

voltage on pin VUP

at least one 5 V card

−

5.5

−

both cards 3 V

−

Vdt

detection voltage for doubler,

tripler and follower selection

−

3.4

−

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