OVERVIEW

The SM8706A is a clock generator IC that generates 3 clocks with 6 outputs from a 36.8640MHz master clock for application in DVD players. The SM8706A has 2 built-in PLL circuits that together with a crystal oscillator can generate the 384fs and 768fs audio system clocks, 27MHz and 54MHz video system clocks, and 16.9344MHz and 33.8688MHz signal processor system clocks required for a DVD player. The SM8706A also supports the 44.1kHz and 48kHz sampling frequencies, and the sampling frequency can be switched while the device is operating.

FEATURES

■ 36.8640MHz master clock (internal PLL reference clock)

■ Generated clocks

• Video system output: 27MHz, 54MHz

• Audio system output: 384fs, 768fs

• Signal processor system output: 16.9344MHz, 33.8688MHz

■ Supported sampling frequency fs: 44.1/48kHz

■ Low jitter output: 40ps (typ, 1-sigma, 25pF load)

■ Supply voltage: 3.3V ± 0.3V

■ 16-pin VSOP package

APPLICATIONS

■ DVD players

■ DVD car navigation system