TDA8005A Datasheet, PDF (26/36 Pages) NXP Semiconductors – Low-power 3 V/5 V smart card coupler

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KEYBOARD
17
from
18
system
controller
19
20
21
RESET
22
23
24
25
RX
26
27
28
TX
29
30
MMI-EN
31
32
LED2
R7
+5 V (logic)
1.5 Ω
1.5 Ω
LED1 ^R8
MMI-CLK
MMI-REQ
LIS
5V
(analog)
100 nF
TDA8005AG
+5 V (analog)
100 nF
64
63
62
4.7
nF ₁₀₀
61
nF
60
47 nF
59
58
57
56
55
54
53
52
51
+5 V (logic)
50
49
100
kΩ
4.7
nF
NC8
NC7
NC6
NC5
C1
C2
C3
C4
NC1
NC2
NC3
NC4
C5
C6
C7
C8
CARD READ UNIT
K1
C702
K2
MGL339
Fig.11 Possible GSM application.