TDA8025 datasheet(4/38 Pages) PHILIPS

No de pièce	TDA8025

Description	IC card interface

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Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

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4 / 38 page

TDA8025_1

Product data sheet

Rev. 01 — 6 April 2009

4 of 38

NXP Semiconductors

TDA8025

IC card interface

6.

Block diagram

(1) Optional external resistor bridge. If this bridge is not needed, connect pin PORADJ to VDD(INTF).

Fig 1.

Block diagram

001aai957

10

µF

100 nF

220 nF

470 nF

220 nF

10

µF

INTERNAL

OSCILLATOR

THERMAL

PROTECTION

OSCILLATOR

(VDD(INTREGD))

RESET

GENERATOR

VCC

LOOP

CLOCK

GENERATOR

I/O

TRANSCEIVER

I/O

TRANSCEIVER

I/O

TRANSCEIVER

CLOCK

CIRCUIT

INTERFACE

MULTIPLEXER

C5

C1

C6

C2

C7

C3

C8

C4

SEQUENCER

REGULATOR

TEST

SUPPLY

INTERNAL

REFERENCE

VOLTAGE

SENSE

21

16

20

GND

CONFIG

VDDI(REG)

3

TEST2

EN1

ALARMN

PRES

10

PORADJ 25

PRESN

9

RSTIN

22

CMDVCCN

1

OFFN

23

CLKDIV1

6

CLKDIV2

5

ENCLKIN

26

VCC_SEL1

7

CLKUP

EN4

VCC_SEL2

8

427

28

VDD(INTREGD)

XTAL2

31

AUX2UC

30

AUX1UC

29

I/OUC

XTAL1

VDD(INTF)

EN3

EN2

CLK

XTAL

PVCC

2

TEST1

32

24

I/O

11

CLK

15

RST

17

CGND

14

VCC

18

AUX1

13

AUX2

12

19

TEST4

TEST3

VDD(INTREGD)

Level shifter

(VDD(INTF))

R2

R1

VDD(INTF)

(1)

TDA8025

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Fabricant	No de pièce	Fiches technique	Description
NXP Semiconductors	TDA8025	188Kb / 38P	IC card interface Rev. 01-6 April 2009
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