TDA9809中文资料Single standard multimedia IF-PLL and FM radio demodulator数据手册恩XP规格书

描述 Description

GENERAL DESCRIPTION
The TDA9809M is an integrated circuit for single standard vision IF signal processing, FM demodulation and FM radio demodulation in multimedia sets.FEATURES
• 5 V supply voltage
• Applicable at Intermediate Frequencies (IFs) of 38.9 and 45.75 MHz
• Gain controlled wideband Video IF (VIF) amplifier (AC-coupled)
• True synchronous demodulation with active carrier regeneration (very linear demodulation, good
intermodulation figures, reduced harmonics, excellent pulse response)
• Robustness for over-modulation better than 105% due to PLL bandwidth control for negative modulation standards
• VIF AGC (Automatic Gain Control) detector for gain control, operating as peak sync detector for negative
modulation standards
• Tuner AGC with adjustable TakeOver Point (TOP)
• AFC (Automatic Frequency Control) detector without extra reference circuit
• AC-coupled limiting amplifier for sound intercarrier signal
• Alignment-free FM PLL (Phase-Locked Loop) demodulator with high linearity; integrated de-emphasis
resistor
• Integrated level detector
• Alignment-free FM radio AFC detector with external resonator
• RIF (Radio IF) amplifier for 10.7 MHz
• Stabilizer circuit for ripple rejection and to achieve constant output signals
• ESD (Electrostatic Discharge) protection for all pins.

特性 Features

• 5 V supply voltage
• Applicable at Intermediate Frequencies (IFs) of 38.9 and 45.75 MHz
• Gain controlled wideband Video IF (VIF) amplifier (AC-coupled)
• True synchronous demodulation with active carrier regeneration (very linear demodulation, good
intermodulation figures, reduced harmonics, excellent pulse response)
• Robustness for over-modulation better than 105% due to PLL bandwidth control for negative modulation standards
• VIF AGC (Automatic Gain Control) detector for gain control, operating as peak sync detector for negative
modulation standards
• Tuner AGC with adjustable TakeOver Point (TOP)
• AFC (Automatic Frequency Control) detector without extra reference circuit
• AC-coupled limiting amplifier for sound intercarrier signal
• Alignment-free FM PLL (Phase-Locked Loop) demodulator with high linearity; integrated de-emphasis
resistor
• Integrated level detector
• Alignment-free FM radio AFC detector with external resonator
• RIF (Radio IF) amplifier for 10.7 MHz
• Stabilizer circuit for ripple rejection and to achieve constant output signals
• ESD (Electrostatic Discharge) protection for all pins.