TDA8023 Datasheet, PDF (24/32 Pages) NXP Semiconductors – Low power IC card interface

NXP Semiconductors
12. Application information
TDA8023
Low power IC card interface
IC2
HOST
CONTROLLER
V_DD
GND
INT
SDA
SCL
CLKout
I/OAUX
V_DD
R3
10 kΩ
C16(1)
V_DD
C20
100 nF
4.7 kΩ
4.7 kΩ
V_DD
VUP
1
IC1
100 nF
SAP
28
INT
2
SBP
27
SDWN ₃
V_{DDI 4}
26 ^VDDP
SBM
25
C19(1)
SDA
5
SCL
6
GNDP ^{100 nF}
24
SAM ^C17(1)
23
SAD0 ₇
22 ^VDD
100 nF
SPRES TDA8023TT CDEL
8
21
CLKIN
9
PORADJ
20
GND ₁₀
19 ^PRES
I/OUC ₁₁
18 ^RST
C8
12
17 ^VCC
C4
13
CLK
16
I/O ₁₄
15 ^GNDC
V_DD
C15
100 nF
CDEL
22 nF
V_DD
P1
10 kΩ
C29
100 nF
C13(2)
68 nF
C18(1)
100 nF
CARD READER
normally closed
C5I C1I
C6I C2I
C7I C3I
C8I C4I
K1
K2
Rp
10 kΩ
V_DD
001aag341
(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
TDA8023_1
Product data sheet
Rev. 01 — 16 July 2007
© NXP B.V. 2007. All rights reserved.
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