bd8918fv ROHM Co. Ltd., bd8918fv Datasheet - Page 14

• Manufacturer Part Number: bd8918fv
• Description: Ic Card Interface Ics With Built-in Low Noise Ldo Regulator
• Manufacturer: ROHM Co. Ltd.

●Precautions for use
© 2009 ROHM Co., Ltd. All rights reserved.
BD8918F,BD8918FV,BD8919F,BD8919FV
www.rohm.com
1) The capacitor for the VCC pin should be placed as close as possible to the IC between VCC and CGND so that the ESR
2) Connect a capacitor of over 0.1µF for VDD and over 10µF for VDDP as close as possible to the IC so that the ESR
becomes less than 100Ω
becomes less than 100m to reduce the power line noise. We recommend the use of capacitors with the largest possible
capacitance.
BD8919F/FV application examples
+3.3V
(22pF)
(22pF)
16MHz
220Ω
CLKSEL
XTAL2
XTAL1
RSTIN
CGND
IO_U
IO_C
VDD
CONTROLLER
1
2
3
4
5
6
7
8
CARD CONNECTION
BD8919FV
0.1µF
BD8919F/
C5
C6
C7
C8
0.22µF
14/15
1µF
C1
C2
C3
C4
K1
K2
16
15
14
13
12
11
10
9
CMDVCCB
OFFB
VDDP
GND
PRES
VCC
CLK
RST
10µF
+5V
Technical Note
2010.4 - Rev.D