PLL FOR DIGITAL TUNING SYSTEM
SC9256
PLL FOR DIGITAL TUNING SYSTEM
DESCRIPTION
The SC9256 is phase-locked loop (PLL) LSIs for digital tuning systems...
Description
SC9256
PLL FOR DIGITAL TUNING SYSTEM
DESCRIPTION
The SC9256 is phase-locked loop (PLL) LSIs for digital tuning systems (DTS) with built in 2 modulus prescalers.
All functions ate controlled through 3 serial bus lines. These LSIs are used to configure high-performance digital tuning system.
DIP-16-300-2.54
FEATURES
* Optimal for configuring digital tuning systems in high-fi tuners and car stereos.
* Built-in prescalers. Operate at input frequency ranging from 30~150 MHz during FMIN input (with 2 modulus prescaler) and at 0.5~40MHz during AMIN input (with 2 modulus prescaler or direct dividing).
* 16 bit programmable counter, dual parallel output phase comparator, crystal oscillator and reference counter.
* 3.6MHz, 4.5MHz, 7.2MHz or 10.8MHz crystal oscillators can be used.
* 15 possible reference frequencies. ( When using 4.5MHz crystal) * Built-in 20 bit general-purpose counter for such uses as measuring
intermediate frequencies (IFIN1 and IFIN2) * High-precision (±0.55~±7.15µs)...
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