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SM8707E/F
Clock Generator with Dual PLLs
| 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. |
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27MHz master clock (internal PLL reference clock) |
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PLL loop filter built-in |
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Crystal oscillator circuit built-in |
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Supported sampling frequency fs: 44.1/48kHz |
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Supply voltage: 3.0 to 3.6V |
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Low current consumption: 35mA typ. (VDD = 3.3V, all outputs with no load) |
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Package:VSOP-16-051044-1 |
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Generated clocks |
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SM8707E |
SM8707F |
| Video output system |
27.0000MHz |
27.0000MHz |
| Audio system output |
512fs |
768fs |
| Signal processor system output |
33.8688MHz |
16.9344MHz
33.8688MHz |
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1. 384fs (fs = 44.1kHz)/768fs (fs = 48kHz) |
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Low jitter output (1-sigma output load capacitance typical values) |
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SM8707E |
SM8707F |
| Video output system |
20ps |
20ps |
| Audio and Signal processor system output |
55ps |
40ps |
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·DVD players/recorders
·DVD car navigation system
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Datasheet(PDF 374KB)
