AK8137A Datasheet, PDF (2/11 Pages) Asahi Kasei Microsystems – Low Power Multiclock Generator with XO

AK8137A
Pin Descriptions
XI
1
GND3
2
USB_Cp
3
USB_Cn
4
VDD2
5
GND2
6
CPU_Cp
7
CPU_Cn
8
FSB
9
VREF
10
Package: 20-Pin SSOP(Top View)
20
XO
19
VDD3
18
REFOUT
17
GND4
16
PDCLKN
15
FSA
14
SATA_Cn
13
SATA_Cp
12
VDD1
11
GND1
Pin
Pin
No. Name
Pin
Type
Description
1
XI
AI Crystal connection, Connect to 25.000MHz crystal
2
GND3
PWR Ground 3
3 USB_Cp
4 USB_Cn
DO
96MHz Clock output for USB
DO
5
VDD2
PWR Power Supply 2
6
GND2
PWR Ground 2
7 CPU_Cp
8 CPU_Cn
DO
Clock output for CPU See Table 1 for its selectable frequency
DO
9
FSB
10 VREF
CPU Clock select
DI
360ｋΩ internal pull-up.
AO ^{VREF Pin. Connect 1uF capacitor.}
11
GND1
PWR Ground 1
12
VDD１
PWR Power Supply 1
13 SATA_Cp DO
100MHz Clock output for SATA
14 SATA_Cn DO
15
FSA
CPU Clock select
DI
360ｋΩ internal pull-up.
Clock Output Control
16 PDCLKN
DI
H: Power Down Disable, L: Power Down Enable
500ｋΩ internal pull-up.
17
GND4
PWR Ground4
18 REFOUT DO Reference Clock Output 25.000MHz Crystal
19
VDD3
PWR Power Supply 3
20
XO
AO Crystal connection, Connect to 25.000MHz crystal
Ordering Information
Part Number
AK8137A
Marking
813７A
Shipping
Packaging
Tape and Reel
Package
20-pin SSOP
Temperature
Range
-20 to 85 ℃
February-10
MS1109_E_02
-2-