tda8024tt-c1 NXP Semiconductors, tda8024tt-c1 Datasheet - Page 5

• Manufacturer Part Number: tda8024tt-c1
• Description: Ic Card Interface
• Manufacturer: NXP Semiconductors

Philips Semiconductors
6
2004 July 12
IC card interface
(1) Optional external resistor bridge. If this bridge is not required pin 18 should be connected to ground; see Section 8.2.2. Pin 18 is not connected
BLOCK DIAGRAM
(1)
V
CMDVCC
in the TDA8024AT.
CLKDIV2
CLKDIV1
AUX1UC
AUX2UC
DD
XTAL1
XTAL2
RSTIN
R1
R2
PORADJ
I/OUC
5V/3V
OFF
18
19
23
20
3
1
2
24
25
27
28
26
21
V
100 nF
DD
OSCILLATOR
CIRCUITRY
VOLTAGE SENSE
CLOCK
REFERENCE
INTERNAL
22
GND
TDA8024
SUPPLY
ALARM
HORSEQ
CLK
POWER_ON
V
ref
EN3
SEQUENCER
Fig.1 Block diagram.
6
V
100 nF
DDP
INTERNAL OSCILLATOR
PROTECTION
DC/DC CONVERTER
EN1 CLKUP
THERMAL
TRANSCEIVER
TRANSCEIVER
TRANSCEIVER
5
2.5 MHz
PV
EN5
EN2
EN4
I/O
I/O
I/O
7
CC
S1
100 nF
GENERATOR
BUFFER
BUFFER
CLOCK
V
RST
CC
S2
5
mdb051
17 V
14
16
15
10
13
12
11
4 PGND
8
9
V
CGND
UP
CC
RST
PRES
PRES
CLK
AUX1
AUX2
I/O
Product specification
100 nF
TDA8024
100 nF
100 nF