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Silan Microelectronics - I2C-BUS CONTROLLED SINGLE AND MULTISTANDARD ALIGNMENT-FREE IF-PLL DEMODULATORS

Numéro de référence SD9885
Description I2C-BUS CONTROLLED SINGLE AND MULTISTANDARD ALIGNMENT-FREE IF-PLL DEMODULATORS
Fabricant Silan Microelectronics 
Logo Silan Microelectronics 





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SD9885 fiche technique
I2C-BUS CONTROLLED SINGLE AND MULTISTANDARD ALIGNMENT-FREE
IF-PLL DEMODULATORS
DESCRIPTION
The SD9885 is an alignment-free multistandard (PAL and NTSC)
vision and sound IF signal PLL demodulator for negative modulation
only and FM processing.
The SD9886 is an alignment-free multistandard(PAL, SECAM and
NTSC) vision and sound IF signal PLLdemodulator for positive and
negative modulation,including sound AM and FM processing.
FEATURES
5 V supply voltage
Gain controlled wide-band Vision Intermediate Frequency (VIF)
amplifier, AC-coupled
Multistandard true synchronous demodulation with active
carrier regeneration
Fully integrated VIF Voltage Controlled Oscillator (VCO),
alignment-free, frequencies switchable for all negative and
positive modulated standards via I2C-bus
Digital acquisition help, VIF frequencies of 33.4, 33.9, 38.0,
38.9, 45.75, and 58.75 MHz
4 MHz reference frequency input
VIF Automatic Gain Control (AGC) detector for gain control
External AGC setting via pin OP1
Precise fully digital Automatic Frequency Control (AFC)
detector with 4-bit digital-to-analog converter, AFC bits
readable via I2C -bus
TakeOver Point (TOP) adjustable via
I2C -bus or alternatively with
potentiometer
Fully integrated sound carrier trap for
4.5, 5.5, 6.0, and 6.5 MHz, controlled
by FM-PLL oscillator
APPLICATIONS
TV, VTR, PC and STB applications.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
Downloaded from Elcodis.com electronic components distributor
REV:1.1 2010.01.06
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