AK8130B

Description

The AK8130B is a member of AKEMD’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 AK8130B generates different frequency clocks from a 27MHz crystal oscillator and provides them to up to four outputs configured by pin-setting. The on-chip VCXO accepts a voltage control input to allow the output clocks to vary by ±110 ppm for synchronizing to the external clock system. Both circuitries of VCXO and PLL in AK8130B are derived from AKEMD’s long-term-experienced clock device technology, and enable clock output to perform low jitter and to operate with very low current consumption. The AK8130B is available in a 16-pin SSOP package.

Features

■ 27MHz Crystal Input
■ Four Frequency-Selectable Clock Outputs
■ One 27MHz-Reference Output
■ Selectable Clock out Frequencies:
- 74.1758, 74.250MHz
- 25.000MHz
- 4.9152, 12.000, 48.000MHz
- 24.576, 33.333MHz
■ Built-in VCXO
- Pull Range: ±110ppm (Min.)
■ Low Jitter Performance
- Period Jitter:
150 psec (Typ.) at CLK1-4
- Long Term Jitter :
160 psec (Typ.) at REFOUT
■ Low Current Consumption:
16.5mA (Typ.) at 3.3V
■ Supply Voltage:
3.0 – 3.6V
■ Operating Temperature Range:
-20 to +85℃
■ Package:
16-pin SSOP (Lead free)

Applications
■ Digital TV Sets
■ Personal Video Recorders
■ Set-Top-Boxes
■ Multi Media Receivers