TEMIC Semiconductors TDA4453
The following function units are integrated in this circuit combination for video-IF processing: D Video output amplifier with low-pass characteristics, limiter for ultra black and inverter for ultra white interference D Three symmetric, highly stable, gain controlled wideband amplifier, quasi galvanic coupling eliminates feed back D High impedance, interference free controlled voltage facilities, best possible AGC time constant with small storage capacitor D Video carrier controlled demodulator of high linearity D Polarity switch over for video D Controlled discharge circuit for fast gain...
| Part No. |
TDA4453 |
| Datasheet |
TDA4453
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| Manufacturer |
 TEMIC Semiconductors |
| Description |
Video IF Amplifier for Multistandard TV Receiver and VTR Appliances |
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FEATURES
D Interference suppression D Standard B/G-L suitable, processes negatively and positively modulated IF-signals with equal polarity of the output signal D Fast AGC by controlled discharge of the AGC capacitor Standard L mode: AGC acting on peak white level, capacitor discharge control by averaged video signal Standard B/G: AGC acting on the sync. pulse peak D Ultra white inverter and ultra black limiter for reducing transmission interference D Internally noise protected gain control, no flyback pulses required D Expanded video frequency response allows the demodulation of amplitude modulated MAC signals D D D D Small differential error Constant input impedance Video output voltage with narrow tolerance Adapted output for insertion of ceramic transducers as intrinsic sound trap TEMIC video IF type programme - permits building block system for video IF module D High input sensitivity D Minimal intermodulation interference D Connecting and basic circuitry compatible to the Figure 1.
