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INTEGRATED CIRCUITS DATA SHEET TDA4665 Baseband delay line Product specification Supersedes data of 1995 Oct 30 File under Integrated Circuits, IC02 1996 Dec 17 Philips Semiconductors Product specification Baseband delay line 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(p-p) PARAMETER analog supply voltage (pin 9) digital supply voltage (pin 1) total supply current ±(R-Y) input signal PAL/NTSC (peak-to-peak value; pin 16) ±(B-Y) input signal PAL/NTSC (peak-to-peak value; pin 14) ±(R-Y) input signal SECAM (peak-to-peak value; pin 16) ±(B-Y) input signal SECAM (peak-to-peak value; pin 14) Gv gain Vo / Vi of colour-difference output signals V11 / V16 for PAL and NTSC V12 / V14 for PAL and NTSC V11 / V16 for SECAM V12 / V14 for SECAM ORDERING INFORMATION TYPE NUMBER TDA4665 TDA4665T PACKAGE NAME DIP16 SO16 DESCRIPTION plastic dual in-line package; 16 leads (300 mil) plastic small outline package; 16 leads; body width 3.9 mm 5.3 5.3 -0.6 -0.6 5.8 5.8 -0.1 -0.1 MIN. 4.5 4.5 - - - - - 5 5 5.5 525 665 1.05 1.33 TYP. 6 6 GENERAL DESCRIPTION TDA4665 The TDA4665 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). MAX. UNIT V V mA mV mV V V dB dB dB dB 7.0 - - - - 6.3 6.3 +0.4 +0.4 VERSION SOT38-4 SOT109-1 1996 Dec 17 2 1996 Dec 17 BLOCK DIAGRAM Philips Semiconductors Baseband delay line handbook, full pagewidth ±(R-Y) 11 LP addition output stages buffers ±(R-Y) LINE MEMORY pre-amplifiers SAMPLEAND-HOLD 16 SIGNAL CLAMPING colour-difference input signals colour-difference output signals ±(B-Y) LINE MEMORY SAMPLEAND-HOLD LP 14 SIGNAL CLAMPING 12 3 3 MHz shifting clock DIVIDER BY 192 ±(B-Y) VP1 FREQUENCY PHASE DETECTOR LP digital supply 1 VP2 6 MHz CCO 9 analog supply TDA4665 sandcastle pulse input 5 SANDCASTLE DETECTOR 2 6 13 15 n.c. n.c. n.c. n.c. DIVIDER BY 2 3 GND2 MED848 7 4, 8 i.c. 10 GND1 Product specification TDA4665 Fig.1 Block diagram. Philips Semiconductors Product specification Baseband delay line PINNING SYMBOL VP2 n.c. GND2 i.c. SAND n.c. i.c. i.c. VP1 GND1 Vo(R-Y) Vo(B-Y) n.c. Vi(B-Y) n.c. Vi(R-Y) PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DESCRIPTION +5 V supply voltage for digital part not connected ground for di