AK8137A

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 PLL1 SATA_Cp SATA_Cn PLL2 USB_Cp USB_Cn PLL3 PDCLKN CPU_Cp CPU_Cn REFOUT FSA FSB VREF GND AK8137A Multi Clock Generator MS1109_E_02 -1- February-10 http://www.Datasheet4U.com AK8137A Pin Descriptions Package: 20-Pin SSOP(Top View) XI GND3 USB_Cp USB_Cn VDD2 GND2 CPU_Cp CPU_Cn FSB VREF 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 XO VDD3 REFOUT GND4 PDCLKN FSA SATA_Cn SATA_Cp VDD1 GND1 Pin N...