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Silan Semiconductors - PLL FOR DIGITAL TUNING SYSTEM

Numéro de référence SC9256S
Description PLL FOR DIGITAL TUNING SYSTEM
Fabricant Silan Semiconductors 
Logo Silan Semiconductors 





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SC9256S fiche technique
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) PLL phase error detection.
* Numerous general-purpose I/O pins for such uses as peripheral
circuit control.
* All functions controlled through 3 serial bus lines.
*CMOS structure with operating power supply range of
VDD=5.0±0.5V.
SOP-16-300-1.27
* 3 N-channel open-drain output
ports (OFF withstanding voltage:
12V) for such uses as control
signal output.
* Standby mode function (turns off
FM, AM and IF amps) to save
current consumption.
ORDERING INFORMATION
Device
SC9256
SC9256S
Package
DIP-16-300-2.54
SOP-16-300-1.27
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1 2002.08.14
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