Clock Generator with Dual PLLs
Discontinued Products are limited to existing inventory.
The SM8707E/F are dual-PLL clock generator ICs, using a 27MHz master clock, that generate independent audio clock, video clock, and signal processor clock outputs needed in DVD player/recorder applications. Each PLL loop filter and crystal oscillator circuit are built-in and require no external components, resulting in high-precision clocks. The lineup includes devices that support both 44.1/48kHz audio sampling frequencies (fs), switchable using a control pin. The sampling frequency can be switched during operation without generating any output spike noise.
Key Features
  • 27MHz master clock (internal PLL reference clock)
  • PLL loop filter built-in
  • Crystal oscillator circuit built-in
  • Supported sampling frequency fs: 44.1/48kHz
  • Supply voltage: 3.0 to 3.6V
  • Low current consumption: 35mA typ. (VDD = 3.3V, all outputs with no load)
  • Package:VSOP-16-051044-1
  • Generated clocks
  • Low jitter output (1-sigma output load capacitance typical values)
Typical Applications
  • DVD players/recorders
  • DVD car navigation system

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