DS8023 Maxim, DS8023 Datasheet - Page 15

• Manufacturer Part Number: DS8023
• Description: The DS8023 smart card interface IC is a low-cost, low-power, analog front-end for a smart card reader designed for all ISO 7816, EMV*, and GSM11-11 applications
• Manufacturer: Maxim

Figure 10. Typical Application Diagram
*PLACE A 100nF CAPACITOR CLOSE TO DS8023 AND PLACE A 220nF CAPACITOR CLOSE TO CARD CONTACT.
MAXQ1103
ISOIO0
ISOIO1
GPIO
GPIO
GPIO
GPIO
...
...
...
...
...
...
...
______________________________________________________________________________________
33pF
33pF
CLKDIV1
CLKDIV2
5V/3V
1_8V
OFF
RSTIN
CMDVCC
AUX2IN
AUX1IN
I/OIN
CLKDIV1
CLKDIV2
5V/3V
1_8V
OFF
RSTIN
CMDVCC
AUX2IN
AUX1IN
I/OIN
XTAL1
XTAL1
XTAL2
XTAL2
33pF
33pF
GND
GND
100nF
100nF
+3.3V
+3.3V
V
V
DD
DD
DS8023
DS8023
CP1
CP1
100nF
100nF
CP2
CP2
V
V
UP
UP
100nF
100nF
Smart Card Interface
PGND
PGND
+10μF
+10μF
100nF
100nF
V
V
CGND
CGND
V
V
AUX1
AUX2
AUX1
AUX2
DDA
PRES
PRES
DDA
DD
DD
CLK
CLK
V
RST
V
RST
I/O
I/O
CC
CC
+3.3V
+3.3V
100kΩ
100kΩ
100nF*
100nF*
220nF*
220nF*
15