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TDA4661 - Baseband delay line

General Description

The TDA4661 is an integrated baseband delay line circuit with one line delay.

Y) and ±(B

Y).

MAX.

6.3 6.3 +0.4 +0.4 mA mV mV V V dB dB dB dB ±(R

Key Features

  • Two comb filters, using the switched-capacitor technique, for one line delay time (64 µs).
  • Adjustment-free.

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Other Datasheets by NXP Semiconductors

Part Number Description
TDA4660 64 us Baseband Delay Line
TDA4662 Baseband delay line
TDA4663T Baseband delay line
TDA4665 Baseband delay line
TDA4650 Multistandard colour decoder/ with negative colour difference output signals

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.