TDA4662 Description
TDA4662 The TDA4662 is an integrated baseband delay line circuit with one line delay. It is suitable for PAL and NTSC decoders with colour-difference signal outputs ±(R−Y) and ±(B−Y). V V UNIT 7.0 − − 6.3 6.3 mA mV mV dB dB ±(R−Y) input signal PAL/NTSC (peak-to-peak value;.
TDA4662 Key Features
- Two b filters, using the switched-capacitor technique, for one line delay time (64 µs)
- For PAL and NTSC
- Adjustment-free application
- Handles negative or positive colour-difference input signals
- Clamping of AC-coupled input signals [±(R-Y) and ±(B-Y)]
- VCO without external ponents
- 3 MHz internal clock signal derived from a 6 MHz CCO, line-locked by the sandcastle pulse (64 µs line)
- Sample-and-hold circuits and low-pass filters to suppress the 3 MHz clock signal
- Addition of delayed and non-delayed output signals
- Output buffer amplifiers