描述 Description

GENERAL DESCRIPTION
The TDA9806 is an integrated circuit for multistandard vision IF signal processing and FM sound demodulation in TV and VCR sets.FEATURES
? 5 V supply voltage
? Gain controlled wide band VIF-amplifier (AC-coupled)
? True synchronous demodulation with active carrier
?? regeneration (very linear demodulation,
?? good intermodulation figures, reduced harmonics,
?? excellent pulse response)
? Separate video amplifier for sound trap buffering with
?? high video bandwidth
? VIF AGC detector for gain control, operating as peak
?? sync detector for B/G
? Tuner AGC with adjustable takeover point (TOP)
? AFC detector without extra reference circuit
? AC-coupled limiter amplifier for sound intercarrier signal
? Alignment-free FM-PLL demodulator with high linearity,
?? switchable de-emphasis for FM
? Stabilizer circuit for ripple rejection and to achieve
?? constant output signals.

特性 Features

? 5 V supply voltage
? Gain controlled wide band VIF-amplifier (AC-coupled)
? True synchronous demodulation with active carrier
?? regeneration (very linear demodulation,
?? good intermodulation figures, reduced harmonics,
?? excellent pulse response)
? Separate video amplifier for sound trap buffering with
?? high video bandwidth
? VIF AGC detector for gain control, operating as peak
?? sync detector for B/G
? Tuner AGC with adjustable takeover point (TOP)
? AFC detector without extra reference circuit
? AC-coupled limiter amplifier for sound intercarrier signal
? Alignment-free FM-PLL demodulator with high linearity,
?? switchable de-emphasis for FM
? Stabilizer circuit for ripple rejection and to achieve
?? constant output signals.