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TDA8025 Просмотр технического описания (PDF) - NXP Semiconductors.
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TDA8025
IC card interface
NXP Semiconductors.
TDA8025 Datasheet PDF : 38 Pages
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NXP Semiconductors
6. Block diagram
TDA8025
IC card interface
V
DD(INTF)
R1
PORADJ 25
(1)
GND
20
CONFIG
16
V
DDI(REG)
10
µ
F
21
REGULATOR
SUPPLY
INTERNAL
REFERENCE
INTERNAL
OSCILLATOR
TEST2
TEST1
TEST4
23
TEST
32
24
TEST3
19 V
DD(INTREGD)
100 nF
10
µ
F
TDA8025
R2
PRES
PRESN
RSTIN
CMDVCCN
OFFN
CLKDIV1
CLKDIV2
ENCLKIN
VCC_SEL1
VCC_SEL2
VOLTAGE
SENSE
ALARMN
CLKUP
EN1
10
PVCC
V
CC
LOOP
9
22
SEQUENCER EN4
1
23
CLOCK
CIRCUIT
6
V
DD(INTREGD)
5
INTERFACE
CLK
EN3
EN2
26
MULTIPLEXER
THERMAL
PROTECTION
7
Level shifter
8
XTAL
(VDD(INTF))
OSCILLATOR
(V
DD(INTREGD)
)
220 nF
RESET
GENERATOR
CLOCK
GENERATOR
I/O
TRANSCEIVER
I/O
TRANSCEIVER
I/O
TRANSCEIVER
4
100 nF
V
DD(INTF)
27
28
29
30
31
XTAL1
AUX1UC
XTAL2
I/OUC
AUX2UC
18 V
CC
14
CGND
17
RST
15
CLK
11
I/O
13
AUX1
12
AUX2
470 nF
220 nF
C5 C1
C6 C2
C7 C3
C8 C4
001aai957
(1) Optional external resistor bridge. If this bridge is not needed, connect pin PORADJ to V
DD(INTF)
.
Fig 1. Block diagram
TDA8025_1
Product data sheet
Rev. 01 — 6 April 2009
© NXP B.V. 2009. All rights reserved.
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