PHILIPS TDA4661 free download

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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 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 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). MAX. V V UNIT 7.0 - - - - 6.3 6.3 +0.4 +0.4 mA mV mV V V dB dB dB dB ±(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) - - 5.3 5.3 -0.6 -0.6 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 TDA4661 TDA4661T PACKAGE NAME DIP16 SO16 DESCRIPTION plastic dual in-line package; 16 leads (300 mil) long body plastic small outline package; 16 leads; body width 3.9 mm VERSION SOT38-4 SOT109-1 December 1994 2 December 1994 BLOCK DIAGRAM Philips Semiconductors Baseband delay line ±(R­Y) 11 ±(R­Y) LP LINE MEMORY pre-amplifiers addition stages output buffers colour- difference output signals SAMPLEANDHOLD 16 SIGNAL CLAMPING colour-difference input signals ±(B­Y) 12 LINE MEMORY LP SAMPLEANDHOLD 14 SIGNAL CLAMPING ±(B­Y) 3 3 MHz shifting clock FREQUENCY PHASE DETECTOR DIVIDER BY 192 V P1 9 analog supply n.c. n.c. n.c. n.c. TDA4661 5 sandcastle pulse input LP digital supply 1 6 MHz CCO SANDCASTLE DETECTOR 2 6 13 15 DIVIDER BY 2 3 4, 8 GND2 7 i.c. 10 GND1 VP2 MEH182.2 Product specification TDA4661 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 digital part (0 V) internally connected sandcastle pulse input not connected internally connected internally connected +5 V supply voltage for analog part ground for analog part