PLL FOR DTS

DESCRIPTION The SC9257 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. FEATURES * Optimal for configurin

用于数字调谐系统的锁相环电路

 SC9257是一个数字调谐系统锁相环电路，内置2个预分频系数。SC9257是一个用于数字调谐系统的PLL频率合成器。适用于高性能的数字调谐系统，例如：收音机和随身听。它可以轻易实现高性能的AM/FM。 ·可以用DIP20和SOP20两种封装形式\n·高速可编程分频器 —FMIN：30 ~ 150 MHz ...脉冲吞咽模式(内置两种预定值分频) —AMIN：0.5 ~ 40 MHz .... 脉冲吞咽模式(内置两种预定值分频)或直接分频\n·16位可编程计数器，并行输出相位比较器，晶体振荡器和参考计数器。\n·使用3.6MHz，4.5MHz，7.2MHz或10.8MHz晶体振荡器。 \n·15种可供选择的参考频率：0.5K ，1K ，2.5K，3K， 3.125K，3.90625K，5K ，6.25K ，7.8125K ， 9K，10K， 12.5K，25K， 50K，100K。(使用4.5;

PLL FOR DTS

DESCRIPTION The SC9257 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. FEATURES * Optimal for configurin

INTRODUCTION

INTRODUCTION The KA9257, a monolithic integrated circuit, is a dual power operational amplifier with a maxmum output current of 0.5A. FEATURESFEATURES • 2 channel BTL driver • Low input bias (lib=30nA) • Built in phase compensation capacitor • Housed in a 12SIP H/S package for easy heat disc

Clock Sync Generator

Features ● All settings made by I2C Bus ● PLL lock-in behavior can be set to TV- or VCR mode ● Automatic clamping of CVBS input ● Provides all horizontal and vertical sync signals and clocks for operating PAMUX, analog color decoders, the A/D converters, PSND and Featurebox ● Free-running cap

PLL FOR DTS

文件：1.41187 Mbytes Page：33 Pages

PLL FOR DTS

文件：1.41187 Mbytes Page：33 Pages