NTE821

Specifically designed to match advances in color picture tube phosphors, the NTE821 is a monolithic silicon integrated circuit in a 14Lead DIP type package and consists of three output amplifiers, a new resistor matrix, two doublebalanced chroma demodulators, and a very stable bias circuit. When used with the NTE714 subcarrier regeneration system and the NTE715 chroma amplifier, this device completes the typical threeblock chroma system. Alternatively, the NTE821 chroma demodulator can be used with the NTE738 chroma processor to form a complete twoblock chroma system.

The output amplifiers NTE821 are specifically designed to meet the low impedance, shortcircuit protected driving requirements of highlevel color output amplifiers. Internal ripple filter capacitors of NTE821 greatly reduce the highfrequency components of demodulation and thereby extend the output voltage swing capability of the output stages and at the same time eliminates the need for external output filtering components.