描述 Description

GENERAL DESCRIPTION
The TDA9813T is an integrated circuit for vision IF signal processing and sound dual FM demodulation, with single reference QSS-IF in TV and VCR sets. For negative modulation standards only.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
? Tuner AGC with adjustable takeover point (TOP)
? AFC detector without extra reference circuit
? AC-coupled limiter amplifier for sound intercarrier signal
? Two alignment-free FM-PLL demodulators with high linearity
? SIF input for single reference QSS mode (PLL
?? controlled); SIF-AGC detector for gain controlled SIF
?? amplifier; single reference QSS mixer able to operate in
?? high performance single reference QSS mode
? Stabilizer circuit for ripple rejection and to achieve
?? constant output signals
? ESD protection for all pins.

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
? Tuner AGC with adjustable takeover point (TOP)
? AFC detector without extra reference circuit
? AC-coupled limiter amplifier for sound intercarrier signal
? Two alignment-free FM-PLL demodulators with high linearity
? SIF input for single reference QSS mode (PLL
?? controlled); SIF-AGC detector for gain controlled SIF
?? amplifier; single reference QSS mixer able to operate in
?? high performance single reference QSS mode
? Stabilizer circuit for ripple rejection and to achieve
?? constant output signals
? ESD protection for all pins.