AK8136A

AK8136A Low Power Multiclock Generator with VCXO AK8136A Features 27MHz Crystal Input One 27MHz-Reference Output 2 wire serial register interface Selectable Clock out Frequencies: - 148.352, 148.5MHz - 100.71, 108MHz - 22.5792, 24.576, 33.8688, 36.864MHz - 27.0MHz Built-in VCXO - Pull Range: ±150ppm (typ.) Low Jitter Performance - Period Jitter: 150 psec (Typ.) at CLK2,CLK3,CLK4 - TIE： 100 psec (Max) at CLK1p,CLK1n - Long term jitter： 160 psec (Typ.) at REFOUT Low Current Consumption: 32 mA (Typ.) at 3.3V Supply Voltage: 3.0 – 3.6V Operating Temperature Range: -20 to +85℃ Package: 20-pin SSOP (Lead free, Halogen free) VDD Description The AK8136A 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 AK8136A generates different frequency clocks from a 27MHz crystal oscillator and provides them to up to four outputs configured by register-setting. The on-chip VCXO accepts a voltage control input to allow the output clocks to vary by ±150 ppm for synchronizing to the external clock system. Both circuitries of VCXO and PLL in AK8136A 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 AK8136A is available in a 20-pin SSOP package. Applications  Set-Top-Boxes XI Voltage Controlled Crystal Oscillator PLL1 CLK1p CLK1n PLL2 VIN PLL3 Full PD CLK4 REFOUT SDA ...