Datasheet

TDA8023_1 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 01 — 16 July 2007 24 of 32
NXP Semiconductors
TDA8023
Low power IC card interface
12. Application information
(1) Low-ESR capacitor, placed near the IC.
(2) Low-ESR capacitor, placed near the C1 contact.
Fig 8. Application diagram: typical TDA8023TT application with capacitive DC-to-DC converter
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100 nF
C19
(1)
100 nF
C17
(1)
100 nF
C16
(1)
C15
100 nF
CDEL
22 nF
C13
(2)
68 nF
C18
(1)
100 nF
C20
100 nF
C29
100 nF
P1
10 kΩ
R3
10 kΩ
4.7 kΩ
4.7 kΩ
28
SAP
IC1
CARD READER
normally closed
TDA8023TT
HOST
CONTROLLER
VUP
1
27
SBPINT
2
26
V
DDP
V
DD
V
DD
V
DD
V
DD
SDWN
3
25
SBM
V
DDI
4
24
GNDP
SDA
5
23
SAM
SCL
SDA
SCL
V
DD
GND
INT
CLKout
C1I
C2I
C3I
C4I
C5I
C6I
C7I
C8I
K1
K2
I/OAUX
6
22
V
DD
V
DD
V
DD
SAD0
7
21
CDEL
SPRES
8
20
PORADJ
CLKIN
9
19
PRES
GND
10
18
RST
I/OUC
11
17
V
CC
C8
12
16
CLK
C4
13
15
GNDCI/O
14
IC2
R
p
10 kΩ