
Nippon Precision Circuits
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