NXP Semiconductors TDA4661
The TDA4661 is an integrated baseband delay line circuit with one line delay. It is suitable for decoders with colour-difference signal outputs ±(R−Y) and ±(B−Y).| Part No. | TDA4661 |
|---|---|
| Datasheet | TDA4661 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Baseband delay line |
| Buy | Stock & Price |
FEATURES
● Two comb filters, using the switched-capacitor technique, for one line delay time (64 µs)● Adjustment-free application
● No crosstalk between SECAM colour carriers (diaphoty)
● Handles negative or positive colour-difference input signals
● Clamping of AC-coupled input signals (±(R−Y) and ±(B−Y))
● VCO without external components
● 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
● Comb filtering functions for NTSC colour-difference signals to suppress cross-colour. QUICK REFERENCE DATA SYMBOL VP1 VP2 IP(tot) VI PARAMETER analog supply voltage (pin 9) digital supply voltage (pin 1) total supply current MIN. 4.5 4.5 − 5 5 4.9 525 665 1.05 1.33 5.8 5.8 −0.1 −0.1 TYP. 6 6
GENERAL DESCRIPTION
TDA4661 MAX. V V UNIT 7.0 − − − − 6.3 6.3 +0.4 +0.4 mA mV mV V V dB dB dB...
