NXP Semiconductors TDA9812
The TDA9812/T is an integrated circuit for multistandard vision IF signal processing and AM and FM sound demodulation in TV and VTR sets.| Part No. | TDA9812 |
|---|---|
| Datasheet | TDA9812 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Multistandard VIF-PLL and FM-PLL/AM demodulator |
| Buy | Stock & Price |
FEATURES
● 5 V positive 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)
● Gated phase detector for L/L accent standard
● VCO frequency switchable between L and L accent (alignment external) picture carrier frequency
● 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 (optional external AGC) and peak white detector for L; signal controlled reaction time for L
● Tuner AGC with adjustable Take Over 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
● AM-SIF AGC detector for gain controlled SIF amplifier
● AM demodulator without extra reference circuit
● Stabilizer circuit for ripple rejection and to achieve constant output signals.
