AK8137A Datasheet, PDF (1/11 Pages) Asahi Kasei Microsystems – Low Power Multiclock Generator with XO

AK8137A
Low Power
Multiclock Generator with XO
AK8137A
Features
25MHz Crystal Input
One 25MHz-Reference Output
Selectable Clock out Frequencies:
- 100, 133, 166, 200MHz
- 96MHz
- 100MHz
- 25MHｚ
Low Jitter Performance
- Cycle to Cycle Jitter:
85 psec at CPU_C
125 psec at SATA_C
250 psec at UBS_C
Low Current Consumption:
37mA (Typ.) at 3.3V
Supply Voltage:
3.0 – 3.6V
Operating Temperature Range:
-20 to +85℃
Package:
20-pin SSOP (Lead free, Halogen free)
Description
The AK8137A is a member of AKM’s low power
multi clock generator family designed for a feature
rich DTV or STB, requiring a range of system
clocks with high performance. The AK8137A
generates different frequency clocks from a 25
MHz crystal oscillator and provides them to up to
four outputs configured by pin-setting. PLL in
AK8137A are derived from AKM’s
long-term-experienced clock device technology,
and enable clock output to perform low jitter and to
operate with very low current consumption. The
AK8137A is available in a 20-pin SSOP package.
Applications
Set-Top-Boxes
Block Diagram
VDD
XI
Crystal
Oscillator
XO
PDCLKN
FSA
FSB
PLL1
PLL2
PLL3
SATA_Cp
SATA_Cn
USB_Cp
USB_Cn
CPU_Cp
CPU_Cn
REFOUT
VREF
GND
AK8137A Multi Clock Generator
MS1109_E_02
-1-
February-10