1996 Dec 12 19
Philips Semiconductors Product specification
Smart card interface TDA8001
APPLICATION INFORMATIONFig.14 Application in a pay TV decoder.
(1) The capacitor should be placed as close as possible to the IC.
(2) If pin VH is not connected to 25 V, it should be connected to VDD.
handbook, full pagewidth
MGG831
10
µF
10
µF
C1
C2
C3
DETECT
RSTIN
I/O(µC)
CMD7
CLKOUT2
GND2
OFF
VDD VDD
VSUP VH
RST CVNC
12 V 25 V
ALARM
TDA8001
ALARM
DELAYGND GND1 XTAL
47 nF
14 MHz
C5
C6
C8
CARD
SOCKET
80C52
MICRO-
CONTROLLER
to 8805
micro-
controller
PORT
1
PORT
2
INT0
100 nF
(1)
XTAL1
I/O
CLK
RST
VCC
PRES
PRES
VPP
XTAL2
25 V
GND
12 V
+5 V
C7
C4
100 nF
100 nF
47 nF
CMD3.5
CMDVCC
VPP15
VPP21
VPP12.5
1 kΩ
(2)